This document is a technical seminar report on a solar tree submitted by Mohsin Khan in partial fulfillment of the requirements for a Bachelor of Engineering degree. It includes an abstract, table of contents, introduction discussing what a solar tree is and how it addresses the need for large spaces required by traditional solar panels. It also discusses spiralling phyllataxy technique to improve efficiency. The report is certified by the guide and head of the electrical engineering department. It acknowledges help received and discusses the working principle of solar cells including intrinsic and extrinsic semiconductors.
The document discusses solar trees, which are structures that use multiple solar panels arranged like a tree to generate electricity efficiently using less land than traditional solar panel systems. A solar tree works by converting sunlight into electricity through photovoltaic cells on each panel. It has several advantages over standard solar panel installations such as requiring less space while providing environmental and cost benefits to users.
The document is a seminar report on solar cells submitted in partial fulfillment for a Bachelor of Technology degree in Electrical Engineering. It discusses the basic components and manufacturing process of solar cells over 10 sections. The report provides an overview of what solar cells are, the history and generations of solar cell technology, how solar cells work on a crystalline silicon level, and the 7-step manufacturing process involving silicon purification, wafer preparation, doping, screen printing, stringing, anti-reflective coating, and module manufacturing. It also covers applications, efficiency, costs, materials used, and when not to install PV systems.
A solar tree is a decorative structure that produces solar energy using multiple solar panels arranged like leaves on a tree. It uses a spiralling design to minimize shadowing between panels. Each panel contains solar cells made of doped silicon that generate electricity when struck by sunlight via the photovoltaic effect. The electricity is stored in batteries and used to power LED lights on the tree. It provides renewable energy generation and lighting in an urban setting while using less space than traditional solar panels.
The document describes a solar tree, which is a structure that produces solar energy. It consists of multiple solar panels arranged like the branches and leaves of a tree on a tall pole. This design allows for efficient energy production using less land than traditional solar panel systems. The solar tree uses a technique called "spiralling phyllotaxy" to minimize the panels shading each other. It has various components and can power applications like street lights while providing environmental and economic benefits compared to other power sources. However, it also has disadvantages like high initial cost. Overall, the solar tree is presented as a promising renewable energy solution for India.
This document provides an overview of solar photovoltaic cells. It begins by outlining different energy sources, including conventional, renewable, and non-renewable sources. It then discusses the basic structure and working of silicon-based solar cells. Dye-sensitized solar cells and solar perovskite cells are also mentioned. The document discusses applications of solar cells and their merits and demerits. It provides details on the history, definition, structure, and working of solar cells. In summary, the document outlines different types of energy sources and provides an introduction to silicon-based solar cells and their components.
This document is a seminar report submitted by Pappu Jaiswal to fulfill requirements for a Bachelor of Technology degree in Electrical Engineering at Madan Mohan Malaviya University of Technology. The report is about solar trees and includes chapters on the working principle of solar cells, the manufacturing process of solar cells, and applications, advantages, and disadvantages of solar trees. It was supervised by Mr. Kishan Bhushan Sahay of the Electrical Engineering department.
This document provides an overview of solar energy sources and technology. It defines solar energy as energy obtained from radiation emitted by the sun. Solar panels convert sunlight into electricity through photovoltaic cells made of silicon semiconductors. Passive solar uses sunlight without equipment to warm buildings, while active solar uses collectors and fluid/air transfer to store solar heat. Advantages include reducing global warming, energy reliability and independence, while disadvantages include high initial costs and needing batteries for nighttime use.
Seminar report on solar tree (by Vikas)dreamervikas
Now a days with the growing population and energy demand we should take a renewable option of energy source and also we should keep in mind that energy should not cause pollution and other natural hazards. In this case the solar energy is the best option for us.
so based on solar energy the solar tree is formed and it acquire very less land.
The document discusses solar trees, which are structures that use multiple solar panels arranged like a tree to generate electricity efficiently using less land than traditional solar panel systems. A solar tree works by converting sunlight into electricity through photovoltaic cells on each panel. It has several advantages over standard solar panel installations such as requiring less space while providing environmental and cost benefits to users.
The document is a seminar report on solar cells submitted in partial fulfillment for a Bachelor of Technology degree in Electrical Engineering. It discusses the basic components and manufacturing process of solar cells over 10 sections. The report provides an overview of what solar cells are, the history and generations of solar cell technology, how solar cells work on a crystalline silicon level, and the 7-step manufacturing process involving silicon purification, wafer preparation, doping, screen printing, stringing, anti-reflective coating, and module manufacturing. It also covers applications, efficiency, costs, materials used, and when not to install PV systems.
A solar tree is a decorative structure that produces solar energy using multiple solar panels arranged like leaves on a tree. It uses a spiralling design to minimize shadowing between panels. Each panel contains solar cells made of doped silicon that generate electricity when struck by sunlight via the photovoltaic effect. The electricity is stored in batteries and used to power LED lights on the tree. It provides renewable energy generation and lighting in an urban setting while using less space than traditional solar panels.
The document describes a solar tree, which is a structure that produces solar energy. It consists of multiple solar panels arranged like the branches and leaves of a tree on a tall pole. This design allows for efficient energy production using less land than traditional solar panel systems. The solar tree uses a technique called "spiralling phyllotaxy" to minimize the panels shading each other. It has various components and can power applications like street lights while providing environmental and economic benefits compared to other power sources. However, it also has disadvantages like high initial cost. Overall, the solar tree is presented as a promising renewable energy solution for India.
This document provides an overview of solar photovoltaic cells. It begins by outlining different energy sources, including conventional, renewable, and non-renewable sources. It then discusses the basic structure and working of silicon-based solar cells. Dye-sensitized solar cells and solar perovskite cells are also mentioned. The document discusses applications of solar cells and their merits and demerits. It provides details on the history, definition, structure, and working of solar cells. In summary, the document outlines different types of energy sources and provides an introduction to silicon-based solar cells and their components.
This document is a seminar report submitted by Pappu Jaiswal to fulfill requirements for a Bachelor of Technology degree in Electrical Engineering at Madan Mohan Malaviya University of Technology. The report is about solar trees and includes chapters on the working principle of solar cells, the manufacturing process of solar cells, and applications, advantages, and disadvantages of solar trees. It was supervised by Mr. Kishan Bhushan Sahay of the Electrical Engineering department.
This document provides an overview of solar energy sources and technology. It defines solar energy as energy obtained from radiation emitted by the sun. Solar panels convert sunlight into electricity through photovoltaic cells made of silicon semiconductors. Passive solar uses sunlight without equipment to warm buildings, while active solar uses collectors and fluid/air transfer to store solar heat. Advantages include reducing global warming, energy reliability and independence, while disadvantages include high initial costs and needing batteries for nighttime use.
Seminar report on solar tree (by Vikas)dreamervikas
Now a days with the growing population and energy demand we should take a renewable option of energy source and also we should keep in mind that energy should not cause pollution and other natural hazards. In this case the solar energy is the best option for us.
so based on solar energy the solar tree is formed and it acquire very less land.
This document describes infrared solar plastic cells, which use nanotechnology to harness infrared rays from the sun for energy generation. These plastic solar cells contain quantum dots combined with a polymer that can detect infrared energy. They are constructed of cadmium selenide nanorods blended into a polymer film sandwiched between aluminum electrodes. When light is absorbed, electrons travel through the nanorods to be collected at the electrodes, generating a current. Infrared plastic solar cells have advantages over conventional solar cells in being more efficient, compact, and able to operate on cloudy days, but they are currently not as cost effective and have a shorter lifespan when continuously exposed to sunlight.
Konark Institute of Science and Technology discusses infrared plastic solar cells. The cells use nanotechnology and quantum dots combined with a polymer to harness infrared rays from sunlight for energy, making them potentially 5 times more efficient than conventional solar cells. The plastic solar cells are also flexible, lightweight and compact, allowing them to be painted on surfaces like cars to recharge batteries. While initial costs are high, the technology could eventually provide a clean renewable energy source for portable electronics.
Solar to energy presentation geofrey yatorGeofrey Yator
Solar to energy conversion.The definition,need for,technologies and the Future of solar energy in the planet earth.
The article is presented by Geofrey Kibiwott yator University of Eldoret.
This document discusses solar power plants. It begins by defining solar energy and describing the two main types: thermal and electric. It then discusses why solar energy is important due to depletion of fossil fuels. The main uses of solar energy are in power plants, water treatment, heating, and cooking. The two main types of solar power plants are photovoltaic plants and concentrated solar power plants. Photovoltaic plants directly convert sunlight to electricity using solar panels, while concentrated solar plants use mirrors to focus sunlight and convert it to heat before generating electricity. The document provides examples of techniques used in concentrated solar plants and lists some of the largest solar power plants currently operating in India.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.[1] It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices can be combined to form modules, otherwise known as solar panels. In basic terms a single junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts
The document describes a solar tree, which is a decorative structure that produces solar energy using multiple solar panels arranged in a tree-like shape on a tall tower. It summarizes the key components, including solar panels, tower, batteries, and connecting stems. The document explains that a solar tree is an efficient use of space compared to traditional solar panels and can generate electricity from both sunlight and wind using a spiralling phyllataxy design. Solar trees have applications for street lights, household power, and industrial power supply, and are presented as a viable renewable energy solution for India's growing population and energy demands.
Solar harvesting devices power point presentation tejaswi25
This document summarizes different methods of harvesting solar energy. It discusses how solar cells convert solar radiation into electricity, providing examples of common solar-powered devices like calculators, watches, and lights. It also outlines larger solar harvesting systems like solar water heaters, dryers, pumps, and power plants that can be used to heat water, dry crops, lift water for irrigation, and generate electricity on a larger scale. The document emphasizes that solar energy is clean, renewable, and can help reduce utility costs and increase energy independence.
The document discusses the history and development of solar power as an alternative renewable energy source. It describes how concerns over dependency on non-renewable energy in the 1970s led scientists to research new sources. Their work established solar power generated through concentrating solar and photovoltaic methods. The document then provides details on the technology behind solar cells and panels, and how they are able to convert sunlight into usable electricity through photovoltaic effects and semiconductor materials.
The most common type of solar cells are Photovoltaic Cells (PV cells)
Converts sunlight directly into electricity
Cells are made of a semiconductor material (eg. silicon)
Light strikes the PV cell, and a certain portion is absorbed
The light energy (in the form of photons) knocks electrons loose, allowing them to flow freely, forming a current
Metal contacts on the top and bottom of PV cell draws off the current to use externally as power
The document discusses the benefits of solar energy as a renewable resource. It states that solar energy has the potential to meet humankind's total energy demand given that the amount of solar energy that reaches the Earth's surface in one hour exceeds our total annual energy consumption. It then provides an overview of the two main categories of solar power: solar thermal and solar photovoltaics. Solar thermal is used for water heating and cooking while solar photovoltaics generate electricity. The document outlines various passive solar applications and active solar thermal and photovoltaic technologies to harness the sun's energy.
This presentation provides an overview of solar cells. It defines a solar cell as a structure that converts solar energy directly into DC electricity using the photoelectric effect. The presentation discusses the history of solar cells, including their development by Bell Labs scientists in 1954 using silicon p-n junctions. It also covers the basics of how solar cells work using a p-n junction and semiconductor doping, and describes the main types of solar cells as monocrystalline, polycrystalline, and amorphous silicon cells. Applications of solar cells discussed include use in satellites, cars, homes, and devices.
Solar energy originates from thermonuclear fusion reactions in the sun and represents the entire electromagnetic radiation that reaches Earth. It has powered life on Earth for millions of years. Solar energy can be used to heat living spaces and water through solar collectors and photovoltaic cells can convert sunlight directly into electricity. Research is ongoing to develop more efficient solar cell technologies like thin-film and multi-junction cells to harness solar energy on a larger scale.
Solar cells convert sunlight directly into electrical power through the photovoltaic effect. They have several advantages such as being clean, renewable, and producing no pollution or greenhouse gases. Solar cells work by using semiconducting materials, usually silicon, to create a p-n junction. When sunlight hits the junction, electrons are knocked loose, creating an electrical current.
The document discusses how solar panels work to convert sunlight into electrical energy. It begins with an introduction to the sun and how its energy impacts Earth. It then explains that solar panels use silicon photovoltaic cells that directly convert sunlight into electricity through a process where photons dislodge electrons from silicon atoms, generating a flow of electricity. The document concludes by discussing how solar energy can be stored in batteries and used to power individual homes and large solar power plants.
This document describes an infrared plastic solar cell that uses cadmium selenide (CdSe) nanorods dispersed in a poly(3-hexylthiophene) (P3HT) polymer semiconductor. The nanorods are 7nm in diameter and 60nm in length and are synthesized in a solution containing CdSe. This nanocomposite absorbs infrared light and converts it to electricity. When light is absorbed, electrons are generated and transferred to the aluminum electrode while holes move to the electrode through the plastic, creating a current. This solar cell has advantages over traditional silicon cells in that plastic is cheaper to produce, it can absorb different wavelengths of light, and it can still function on cloudy days. However, it also has limitations
The document discusses various alternative energy sources including solar energy. It provides advantages and disadvantages of solar energy, wind energy, clean coal technology, fossil fuels, geothermal energy, hydro power, and nuclear energy. For solar energy specifically, it notes that the sun is the most abundant energy source, solar panels can be used to collect energy, and energy storage methods exist. However, solar energy also has high initial costs and can only generate energy during the day.
Solar cells, also known as photovoltaic cells, convert sunlight directly into electricity through the photovoltaic effect. The first solar cell was built in 1839 by French physicist Edmond Becquerel. In 1905, Albert Einstein explained the photoelectric effect that underlies solar cell function. Solar cells generate electricity when light strikes their semiconductor material, ejecting electrons through the photoelectric effect. There are several types of solar cells including monocrystalline, polycrystalline, and thin-film cells, which vary in efficiency, cost, flexibility and other factors. Solar cells are used widely in applications such as solar water heating, solar cars, and small electronics.
This document provides an overview of organic solar cells. It discusses that organic solar cells are more economical and flexible than traditional silicon solar cells. The structure of organic solar cells is described, including the light-absorbing donor polymer layer, the electron-acceptor fullerene layer, and electrodes. Applications mentioned include phone chargers, small electronics, and building-integrated photovoltaics. Manufacturing of organic solar cells has lower costs than silicon cells due to using thinner films of molecules. While organic solar cells have disadvantages like lower efficiency and shorter lifetimes than silicon, they provide benefits such as flexibility, low weight, and reduced environmental impact.
SOLAR TREE technical seminar PPT(by mohsin khan)Mohsin Khan
The document discusses solar trees, which are a decorative way to produce solar energy and electricity using multiple solar panels arranged in a tree-like structure on a tall pole. Solar trees offer advantages over traditional solar panels like requiring less land and being able to generate energy from both sunlight and wind. However, solar trees also have disadvantages such as high costs and potential hazards to wildlife. The document outlines potential applications of solar trees for street lighting and industrial power supply and envisions a future where solar trees help meet increasing energy demands in a sustainable way.
A solar tree is a decorative means of producing solar energy and also electricity. It uses multiple no of solar panels which forms the shape of a tree. The panels are arranged in a tree fashion in a tall tower/pole.
TREE stands for
T= TREE GENERATING
R=RENEWABLE
E=ENERGY and
E=ELECTRICITY
This is like a tree in structure and the panels are like leaves of the tree which produces energy.
This document describes infrared solar plastic cells, which use nanotechnology to harness infrared rays from the sun for energy generation. These plastic solar cells contain quantum dots combined with a polymer that can detect infrared energy. They are constructed of cadmium selenide nanorods blended into a polymer film sandwiched between aluminum electrodes. When light is absorbed, electrons travel through the nanorods to be collected at the electrodes, generating a current. Infrared plastic solar cells have advantages over conventional solar cells in being more efficient, compact, and able to operate on cloudy days, but they are currently not as cost effective and have a shorter lifespan when continuously exposed to sunlight.
Konark Institute of Science and Technology discusses infrared plastic solar cells. The cells use nanotechnology and quantum dots combined with a polymer to harness infrared rays from sunlight for energy, making them potentially 5 times more efficient than conventional solar cells. The plastic solar cells are also flexible, lightweight and compact, allowing them to be painted on surfaces like cars to recharge batteries. While initial costs are high, the technology could eventually provide a clean renewable energy source for portable electronics.
Solar to energy presentation geofrey yatorGeofrey Yator
Solar to energy conversion.The definition,need for,technologies and the Future of solar energy in the planet earth.
The article is presented by Geofrey Kibiwott yator University of Eldoret.
This document discusses solar power plants. It begins by defining solar energy and describing the two main types: thermal and electric. It then discusses why solar energy is important due to depletion of fossil fuels. The main uses of solar energy are in power plants, water treatment, heating, and cooking. The two main types of solar power plants are photovoltaic plants and concentrated solar power plants. Photovoltaic plants directly convert sunlight to electricity using solar panels, while concentrated solar plants use mirrors to focus sunlight and convert it to heat before generating electricity. The document provides examples of techniques used in concentrated solar plants and lists some of the largest solar power plants currently operating in India.
Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.[1] It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices can be combined to form modules, otherwise known as solar panels. In basic terms a single junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts
The document describes a solar tree, which is a decorative structure that produces solar energy using multiple solar panels arranged in a tree-like shape on a tall tower. It summarizes the key components, including solar panels, tower, batteries, and connecting stems. The document explains that a solar tree is an efficient use of space compared to traditional solar panels and can generate electricity from both sunlight and wind using a spiralling phyllataxy design. Solar trees have applications for street lights, household power, and industrial power supply, and are presented as a viable renewable energy solution for India's growing population and energy demands.
Solar harvesting devices power point presentation tejaswi25
This document summarizes different methods of harvesting solar energy. It discusses how solar cells convert solar radiation into electricity, providing examples of common solar-powered devices like calculators, watches, and lights. It also outlines larger solar harvesting systems like solar water heaters, dryers, pumps, and power plants that can be used to heat water, dry crops, lift water for irrigation, and generate electricity on a larger scale. The document emphasizes that solar energy is clean, renewable, and can help reduce utility costs and increase energy independence.
The document discusses the history and development of solar power as an alternative renewable energy source. It describes how concerns over dependency on non-renewable energy in the 1970s led scientists to research new sources. Their work established solar power generated through concentrating solar and photovoltaic methods. The document then provides details on the technology behind solar cells and panels, and how they are able to convert sunlight into usable electricity through photovoltaic effects and semiconductor materials.
The most common type of solar cells are Photovoltaic Cells (PV cells)
Converts sunlight directly into electricity
Cells are made of a semiconductor material (eg. silicon)
Light strikes the PV cell, and a certain portion is absorbed
The light energy (in the form of photons) knocks electrons loose, allowing them to flow freely, forming a current
Metal contacts on the top and bottom of PV cell draws off the current to use externally as power
The document discusses the benefits of solar energy as a renewable resource. It states that solar energy has the potential to meet humankind's total energy demand given that the amount of solar energy that reaches the Earth's surface in one hour exceeds our total annual energy consumption. It then provides an overview of the two main categories of solar power: solar thermal and solar photovoltaics. Solar thermal is used for water heating and cooking while solar photovoltaics generate electricity. The document outlines various passive solar applications and active solar thermal and photovoltaic technologies to harness the sun's energy.
This presentation provides an overview of solar cells. It defines a solar cell as a structure that converts solar energy directly into DC electricity using the photoelectric effect. The presentation discusses the history of solar cells, including their development by Bell Labs scientists in 1954 using silicon p-n junctions. It also covers the basics of how solar cells work using a p-n junction and semiconductor doping, and describes the main types of solar cells as monocrystalline, polycrystalline, and amorphous silicon cells. Applications of solar cells discussed include use in satellites, cars, homes, and devices.
Solar energy originates from thermonuclear fusion reactions in the sun and represents the entire electromagnetic radiation that reaches Earth. It has powered life on Earth for millions of years. Solar energy can be used to heat living spaces and water through solar collectors and photovoltaic cells can convert sunlight directly into electricity. Research is ongoing to develop more efficient solar cell technologies like thin-film and multi-junction cells to harness solar energy on a larger scale.
Solar cells convert sunlight directly into electrical power through the photovoltaic effect. They have several advantages such as being clean, renewable, and producing no pollution or greenhouse gases. Solar cells work by using semiconducting materials, usually silicon, to create a p-n junction. When sunlight hits the junction, electrons are knocked loose, creating an electrical current.
The document discusses how solar panels work to convert sunlight into electrical energy. It begins with an introduction to the sun and how its energy impacts Earth. It then explains that solar panels use silicon photovoltaic cells that directly convert sunlight into electricity through a process where photons dislodge electrons from silicon atoms, generating a flow of electricity. The document concludes by discussing how solar energy can be stored in batteries and used to power individual homes and large solar power plants.
This document describes an infrared plastic solar cell that uses cadmium selenide (CdSe) nanorods dispersed in a poly(3-hexylthiophene) (P3HT) polymer semiconductor. The nanorods are 7nm in diameter and 60nm in length and are synthesized in a solution containing CdSe. This nanocomposite absorbs infrared light and converts it to electricity. When light is absorbed, electrons are generated and transferred to the aluminum electrode while holes move to the electrode through the plastic, creating a current. This solar cell has advantages over traditional silicon cells in that plastic is cheaper to produce, it can absorb different wavelengths of light, and it can still function on cloudy days. However, it also has limitations
The document discusses various alternative energy sources including solar energy. It provides advantages and disadvantages of solar energy, wind energy, clean coal technology, fossil fuels, geothermal energy, hydro power, and nuclear energy. For solar energy specifically, it notes that the sun is the most abundant energy source, solar panels can be used to collect energy, and energy storage methods exist. However, solar energy also has high initial costs and can only generate energy during the day.
Solar cells, also known as photovoltaic cells, convert sunlight directly into electricity through the photovoltaic effect. The first solar cell was built in 1839 by French physicist Edmond Becquerel. In 1905, Albert Einstein explained the photoelectric effect that underlies solar cell function. Solar cells generate electricity when light strikes their semiconductor material, ejecting electrons through the photoelectric effect. There are several types of solar cells including monocrystalline, polycrystalline, and thin-film cells, which vary in efficiency, cost, flexibility and other factors. Solar cells are used widely in applications such as solar water heating, solar cars, and small electronics.
This document provides an overview of organic solar cells. It discusses that organic solar cells are more economical and flexible than traditional silicon solar cells. The structure of organic solar cells is described, including the light-absorbing donor polymer layer, the electron-acceptor fullerene layer, and electrodes. Applications mentioned include phone chargers, small electronics, and building-integrated photovoltaics. Manufacturing of organic solar cells has lower costs than silicon cells due to using thinner films of molecules. While organic solar cells have disadvantages like lower efficiency and shorter lifetimes than silicon, they provide benefits such as flexibility, low weight, and reduced environmental impact.
SOLAR TREE technical seminar PPT(by mohsin khan)Mohsin Khan
The document discusses solar trees, which are a decorative way to produce solar energy and electricity using multiple solar panels arranged in a tree-like structure on a tall pole. Solar trees offer advantages over traditional solar panels like requiring less land and being able to generate energy from both sunlight and wind. However, solar trees also have disadvantages such as high costs and potential hazards to wildlife. The document outlines potential applications of solar trees for street lighting and industrial power supply and envisions a future where solar trees help meet increasing energy demands in a sustainable way.
A solar tree is a decorative means of producing solar energy and also electricity. It uses multiple no of solar panels which forms the shape of a tree. The panels are arranged in a tree fashion in a tall tower/pole.
TREE stands for
T= TREE GENERATING
R=RENEWABLE
E=ENERGY and
E=ELECTRICITY
This is like a tree in structure and the panels are like leaves of the tree which produces energy.
Kaushik Kishore submitted a seminar report on solar power towers. The report provides details on how solar power towers work, including focusing sunlight with heliostats onto a tower-mounted receiver to heat a working fluid like oil or molten salt. The heated fluid is then used to generate steam and power a turbine generator. Key advantages are the ability to store thermal energy for nighttime or cloudy conditions and generate electricity without emissions. Large solar power towers could provide 200MW of power but require significant land area and precise engineering for the tall tower structure.
This document describes a solar tree, which is a structure shaped like a tree that uses multiple solar panels to efficiently produce solar energy and electricity. A solar tree is compared to a natural tree because, like trees use photosynthesis to produce food, a solar tree uses its solar panels like leaves to produce energy. It has advantages like producing pollution-free energy while requiring little land, but disadvantages include high costs and potential hazards to wildlife.
The document describes a solar tree, which is a structure that produces solar energy in an efficient manner using solar panels arranged like leaves on a tree. It requires less land area than traditional solar panel systems to generate the same amount of energy. The key components of a solar tree are the solar panels, a tall tower, batteries, LED lights, and connecting stems. The solar panels are arranged in a spiralling pattern up the tower to maximize sunlight exposure. Solar trees provide clean energy with less space and have applications for street lighting, household power supply, and charging electric vehicles. However, they also have some disadvantages relating to cost, safety, and impacts on wildlife.
Human: Thank you for the summary. You captured the key
Solar trees are a decorative way to produce solar energy and electricity using multiple solar panels arranged in a tree-like structure on a tall pole. They have advantages like requiring less land, being efficient energy producers, and potentially collecting energy from wind. However, solar trees also have disadvantages like high costs and potential hazards to birds, insects, and eyesight from solar reflectors. In the future, solar trees could help meet increasing energy demands while saving land and providing reliable off-grid electricity along with feeding extra power back to the main grid.
This document discusses solar trees as an alternative energy source. It provides a brief history of solar energy development and introduces the concept of a solar tree, which uses multiple solar panels arranged like a tree to generate electricity. The key components of a solar tree are the solar panels, a tall tower, and batteries. Solar trees offer advantages over traditional solar panel installations by requiring less land area while still generating significant amounts of energy. Some disadvantages are the higher initial cost and potential hazards to wildlife. The document concludes that solar trees can help meet increasing energy demands while saving on land usage.
This document lists several Indian space missions and satellites including ASTROSAT, GSAT-6, GSAT-6A, GSAT-9, GSAT-11, GSAT-14, GSAT-15, and GSAT-16. It also mentions solar cycles.
This document provides a seminar report on microwave power transmission (MPT) as a method for wireless power transfer. It discusses the basic theory and components of an MPT system, including microwave generation, transmission through space via antennas, and reception/conversion to electricity via rectennas. Applications, advantages, and limitations of MPT are also reviewed. The report aims to provide an overview of MPT as a feasible technique for transferring power wirelessly, enabled by recent technological advances.
Technical seminar on autonomous underwater weapon systemsVivek Sinha
1) The document summarizes a technical seminar on autonomous underwater weapon systems, focusing on torpedoes.
2) It describes the history and evolution of torpedoes from the original idea by Robert Fulton in 1813 to modern electric-powered torpedoes with advanced guidance systems.
3) Major developments included Whitehead's first self-propelled torpedo in 1866, the addition of gyroscopes in 1895 for improved accuracy, the use of electric propulsion and magnetic fuzing in WWII, and later acoustic and wake homing guidance systems influenced by German designs from WWII.
The document discusses computer security, including its objectives of secrecy, availability, and integrity. It covers security policies, threats like intercepted emails and unauthorized access. The goals of security are outlined as data confidentiality, integrity, and availability. Security mechanisms are used to provide services like confidentiality, integrity, authentication, and access control. Both passive attacks like interception and active attacks like modification are described. The document also discusses security classification, attacks, and tools to achieve security like encryption, public key cryptography, secure communication channels, firewalls, and proxies. It notes the tension between security and other values like ease of use and public safety.
Performance of quadrilateral relay on EHV transmission line protection during...IDES Editor
Distance relays have many characteristics
such as Impedance, lenticular, Offset Mho, Mho and
Quadrilateral characteristics. Quadrilateral
characteristics provide highly suitable protection for
Transmission line as compared to other characteristics.
Quadrilateral relay provides flexible protection during
high fault resistance of ground and phase faults. This is
advantageous for protection of phase-to-earth faults on
short lines, lines without earth wires, non-effectively
earthed systems and feeders with extremely high tower
footing resistance. This also provides fault impedance
coverage for both phase to phase and phase to ground
faults without effecting load encroachment. I explained
factors impacting performance of Quadrilateral relay
focusing on accuracy and speed of operation. In this
paper Quadrilateral relay system and Bergeron model
type transmission line are designed and simulated using
PSCAD/EMTDC analysis software to study the different
type of fault at various fault resistances. A Fast Fourier
technique is used to generate apparent impedance. The
simulation result shows Quadrilateral relay are highly
suitable for protection of extra high voltage transmission
line during resistance faults. This scheme improves the
sensitivity, and reliability.
This document summarizes a seminar report on HVDC transmission lines. It introduces HVDC transmission and explains the types of DC links. It discusses India's use of HVDC including its first and largest HVDC systems. It compares the cost of AC and DC transmission and describes how HVDC is incorporated into AC systems. It outlines the equipment used at converter stations and lists the technical, economic, and stability advantages of HVDC transmission. It also discusses some problems with HVDC transmission and concludes that HVDC offers alternatives to increase power system stability and flexibility.
This document provides a project report on a hybrid chimney. It includes an acknowledgment section thanking those who supported and guided the project. It also includes a bonafide certificate confirming the students completed the project work under supervision. The abstract explains that a solar thermal hybrid chimney combines solar heating, the greenhouse effect, and wind turbines to generate electricity from sunlight and airflow. It is a simple concept that uses solar heating to generate airflow up a chimney and spins turbines to convert the kinetic energy to electricity.
The document summarizes the training report on HVDC transmission systems by Mr. Mohammed Azadar Naqvi at BHEL in Noida. It provides an overview of HVDC transmission, including why it is required due to limitations of AC transmission over long distances. It describes the basic components of an HVDC system including converters, transformers, filters, valves, and switchyards. It also explains the different configurations of HVDC systems such as back-to-back, monopolar, and bipolar arrangements. The report concludes with a list of HVDC projects commissioned in India and references used in the training.
An article from Building Magazine which describes the risks and options available for investment in Energy from Waste infrastructure. Includes concept cost model for a generic Incineration process
With the development of industry and
agriculture, a great amount of energy such as coal, oil
and gas has been consumed in the world. Extensive
use of these fossil energies deteriorates a series of
problems like energy crisis, environmental pollution
and so on. Everybody knows that the fossil energy
reserves are finite, some day it will be exhausted.
It is possible that the world will face a
global energy crisis due to a decline in the
availability of cheap oil and recommendations to a
decreasing dependency on fossil fuel. This has led to
increasing interest in alternate power/fuel research
such as fuel cell technology, hydrogen fuel, biodiesel,
Karrick process, solar energy, geothermal energy,
tidal energy and wind. Today, solar energy and wind
energy have significantly alternated fossil fuel with
big ecological problems.
With the development of the science and
technology, power generation using solar energy and
wind power is gradually known by more and more
people. And it is widespread used in many developed
countries. The merits of the solar and wind power
generation are very obvious-infinite and nonpolluting.
The raw materials of the solar and wind
power generation derived from nature, and wind
power generation can work twenty-four hours a day,
solar power generation only works by daylight. In
addition, this kind of power generation has no
exhaust emission and there is no influence to the
nature. But it also has some shortcomings. Because
of the imperfect of the technology, equipment of the
solar and wind power generation is very expensive.
By far, it cannot be widely used.
In addition, solar and wind power
generation system affected by the changing of the
weather very much, so it has obvious defects in
reliability compared with fossil fuel, and it is difficult
to make it fit for practical use the lack of economical
efficiency .Because of these problems it needs to
increase the reliability of energy supply by
developing a system which interacts Solar and wind
energy. This kind of system is usually called windsolar
hybrid power generation system significantly
Incineration: A Poor Solution for the 21st Century, by Dr Paul ConnettFrankie Dolan
Dr Connett's presentation regarding incineration that was given at Ivybridge, Devon, UK on 3rd February 2010. The presentation was to inform the residents of the area regarding the facts of incineration and its alternatives, as they fight against the proposed incinerator at Lee Mill. This is the full version of the presentation, 247 slides long. There will shortly be available a slimmer version containing the most important slides. Find out more about the campagin against the incinerator at http://www.ecoivy.org
Microwave power transmission via solar satellite uses solar panels on satellites to generate electricity, which is then converted to microwaves and transmitted to receiving antennas on Earth. The technology has four main steps: 1) Solar energy is converted to electricity on satellites, 2) Microwaves are generated and transmitted from the satellites, 3) The microwaves are received by rectifying antennas on Earth, and 4) The received electricity is fed into utility grids. While this technology could provide a renewable and lossless power transmission solution, challenges include high initial launch costs and potential health and interference issues.
Incineration is a waste treatment technology that involves burning organic materials and substances at high temperatures. It converts waste into bottom ash, flue gases, particulates, and heat. The heat can be used to generate electricity. There are different types of incinerator technologies, including moving grate incinerators, which are commonly used for municipal solid waste, fixed grate incinerators, rotary kiln incinerators, and fluidized bed incinerators. Incineration produces pollution that requires flue gas cleaning before release. The process can generate electricity and heat from burned waste but emissions must be controlled.
This document is a seminar submission by Pyara Ram for his Bachelor of Technology degree in Electrical Engineering at Vyas College of Engineering and Technology in Jodhpur, India. The seminar topic was on "Solar Tree" and was supervised by Prof. Asad Zai. The document includes a certificate confirming Pyara Ram successfully completed the seminar. It also acknowledges those who provided support and guidance. The abstract provides a high-level overview of solar trees and how they can be implemented more efficiently than traditional solar PV systems while using less space. The document then goes into further detail on the working principles, manufacturing process, advantages, applications and conclusion of solar trees.
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels. The common single junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts. Solar cells are described as being photovoltaic, irrespective of whether the source is sunlight or an artificial light. In addition to producing energy, they can be used as a photodetector (for example infrared detectors), detecting light or other electromagnetic radiation near the visible range, or measuring light intensity. The operation of a photovoltaic (PV) cell requires three basic attributes: The absorption of light, generating either electron-hole pairs or excitons.The separation of charge carriers of opposite types.The separate extraction of those carriers to an external circuit. In contrast, a solar thermal collector supplies heat by absorbing sunlight, for the purpose of either direct heating or indirect electrical power generation from heat. A "photoelectrolytic cell" (photoelectrochemical cell), on the other hand, refers either to a type of photovoltaic cell (like that developed by Edmond Becquerel and modern dye-sensitized solar cells), or to a device that splits water directly into hydrogen and oxygen using only solar illumination.
The document discusses the design of parabolic point focused type solar cells for use in solar hybrid vehicles. It aims to use parabolic collectors to receive solar energy. This would help overcome fuel depletion issues by developing vehicles that can run on solar energy as well as electricity, called solar hybrid vehicles. The design of the reference antenna for the solar cell is also presented, including specifications like substrate material and thickness. Simulation results are explained to analyze the performance of the integrated antenna-solar cell configuration.
The document is a seminar report on solar cells presented by Jetha Ram Gousai at Sardar Vallabhbhai National Institute of Technology. It discusses the history and development of solar cell technology, focusing on the basic physics and manufacturing process of crystalline silicon solar cells. The report covers the purification of silicon, production of silicon ingots and wafers, doping process to create p-type and n-type silicon, screen printing electrodes, and assembly into solar modules.
The document discusses the benefits of solar energy as a renewable and sustainable source of energy. It notes that fossil fuels are non-renewable so alternatives are needed. Solar energy is described as a clean, green, and low maintenance form of energy that can meet power needs. The document outlines different solar technologies for heating and electricity generation, including photovoltaic cells. It discusses applications of solar energy and its potential in Pakistan given the country's climate and need for rural electrification. Challenges of solar energy are also summarized.
Cindy is considering starting a business installing solar panels and is seeking advice. Solar panel installation could be a profitable business opportunity as consumers are increasingly concerned about the environment and want to reduce energy costs. However, there are also risks involved that Cindy needs to consider carefully. Studies show solar power will likely supply a larger portion of electricity demand in the future as costs decrease further. Government incentives can also impact the financial analysis of installing solar panels.
Advance Solar Cells and Printed Solar Cell A Reviewijtsrd
Solar cell technology begin with first generation and third generation solar cells is discussed here by considering different advanced materials on which these technologies are based. The efficiencies attained with different new age solar cell technologies, limitations in their commercial application is overcome with the new technology used in solar cell. This paper is an overview of the advances technology used in solar cell and printed solar cell. Sukhjinder Singh | Nitish Palial | Rohit Kumar "Advance Solar Cells and Printed Solar Cell: A Review" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-5 , October 2023, URL: https://www.ijtsrd.com/papers/ijtsrd59981.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/59981/advance-solar-cells-and-printed-solar-cell-a-review/sukhjinder-singh
This document discusses infrared plastic solar cells that use nanotechnology to harness energy from infrared light. It can work even on cloudy days. The cell contains a layer of nano rods dispersed in a polymer sandwiched between electrodes. When light is absorbed, electrons are generated and travel through the nano rods to be collected at the electrodes, producing a current. These plastic solar cells have potential applications such as powering devices, cars, and may eventually supply power needs through large solar farms. However, their high cost currently limits widespread use.
Copy of Solar Power Meeting by Slidesgo.pptxprajaktafale3
The document discusses solar energy and how it is used to generate electricity through solar panels. It describes how solar panels work by converting sunlight into electrical energy through photovoltaic cells. It then lists the advantages of solar energy such as being renewable and not causing pollution, and the disadvantages including high initial costs and reliance on sunny weather conditions. Finally, it concludes that solar energy has great long term potential as a renewable and non-polluting source of energy.
The document discusses solar power plants and photovoltaic cells. It describes how solar power plants convert sunlight into electricity using photovoltaic cells or solar panels. The cells are made of semiconductors, usually silicon, that produce a current when light hits the cell. Large solar power plants use arrays of many cells and mirrors or lenses to direct sunlight and produce electricity on a large scale to supply energy. They provide a clean, renewable source of energy.
solar trees are the modern technological innovation in utilising the non-conventional energy resources in an effective way. These structures are easy to install and require very less space as compared to the conventional solar power plants.
Description of a photovoltaic effect and solar panelsDoug
The document provides an introduction to photovoltaic effects and solar panels. It describes how solar panels and solar cells work by using a combination of materials to cause a chemical reaction when exposed to sunlight that separates protons into electrons and neutrons, generating direct current power. It discusses the history of solar cells and improvements over time that have increased efficiency. The document also outlines different types of solar panels including multi-junction, thin-film, and crystalline silicon panels as well as manufacturers and factors that influence the price of solar panels.
This document proposes installing a 131.7 kW solar photovoltaic system on the Animal Sciences building at the University of Maryland. The system would consist of 479 solar panels, an IronRidge ballasted mounting system, and 14 central inverters. It is estimated to offset approximately 4,963,481 kWh of electricity usage per year and have a payback period of 4-6 years depending on available incentives and funding. A cost analysis is provided for the solar panels, inverters, mounting system, labor, and overall installation costs. The system is proposed to be grid-tied without battery storage given the building's consistent electricity usage.
The main benefit of non renewable strength is that they are is that theyre plentiful and affordable. Non renewable strength is cost effective and simpler to product and use. One major gain with the usage of renewable energy is that as it renewable it is consequently sustainable and so will never run out. Renewable strength facilities generally required much less maintenance than traditional generator. One of the primary quests in spintronics research today is the green and strength conserving era of pure spin currents. Ideally and mainly so one can reduce strength consumption, natural spin current should be generated without the usage of rate modern day that known as joule heating. Bharti Jayprakash Meshram | Yash Jayprakash Meshram | Pallavi Prakash Bhavare "The Spinning Solar Cell" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31166.pdf Paper Url :https://www.ijtsrd.com/other-scientific-research-area/other/31166/the-spinning-solar-cell/bharti-jayprakash-meshram
This document summarizes renewable energy technologies with a focus on solar power and its development in Pakistan. It discusses various solar power technologies including photovoltaics and concentrated solar power. It provides details on solar cell basics, factors that affect solar power output, and types of solar cells and modules. The document also summarizes Pakistan's progress in the solar sector, including government incentives for solar development, the role of the private sector, and the existing supply-demand gap for solar energy.
This document discusses solar energy and photovoltaic systems. It begins by providing context on Italy's increased focus on solar energy after the 1973 energy crisis. It then discusses global warming and incentives for renewable energy in Europe. The document provides details on solar energy resources, technologies like solar thermal and photovoltaic panels, and examples of large solar installations. It also discusses strategies to make solar energy more affordable and sustainable, like improving recycling of panels. In conclusion, it notes that the town of San Vendemiano has installed solar panels on local schools to produce clean energy.
Solar cells, also called photovoltaic cells, convert solar energy directly into electricity. They are most commonly made from silicon and have no moving parts. While solar cell efficiency and market growth have increased, reducing production costs remains a focus of research and development. Promising next generation technologies that may help lower costs include thin films, hot carrier cells, and cells using nanostructures or bandgap engineering of silicon.
Infrared plastic solar cell @1000KV Technologies 90308448771000kv technologies
electronics engineering live projects abstracts
electronics projects, electronics projects for engineering final year students, electronics and communication engineering projects for final year students,100kv,1000kv,1000kv technologies,1000kv projects,technologies,live projects,Hyderabad live projects,live projects in, diploma low cost projects,1000kv projects, , academic projects,btech live projects,Hyderabad,1000kilovolts,1000kilovolts technologies ,btech main projects ,
Nanotechnology applications in solar cells can improve energy efficiency. Conventional solar cells use silicon layers to absorb sunlight and produce energy by exciting electrons. Scientists have developed plastic solar cells that use nanorods and nanotechnology to absorb infrared light on cloudy days. The plastic cells are more compact and efficient than silicon cells. While initial costs may be higher, plastic solar cells could eventually be lower cost and more flexible, allowing applications like painting solar material on surfaces. Further research aims to improve light absorption and transfer of electrons for higher efficiency plastic solar cells.
Similar to SOLAR TREE technical seminar report doc (20)
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
VARIABLE FREQUENCY DRIVE. VFDs are widely used in industrial applications for...PIMR BHOPAL
Variable frequency drive .A Variable Frequency Drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage of its power supply. VFDs are widely used in industrial applications for motor control, providing significant energy savings and precise motor operation.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELijaia
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
SOLAR TREE technical seminar report doc
1. VISVESVARAYA TECHNOLOGICAL UNIVERSITY
"JnanaSangama", Belagavi: 590 018
A Technical Seminar on
“SOLAR TREE”
Submitted in partial fulfillment of the requirements of the degree of
BACHELOR OF ENGINEERING
In
ELECTRICAL AND ELECTRONICS ENGINEERING
For the academic year
2015-2016
By
MOHSIN KHAN(1AY13EE413)
Under the guidance of
Mr. KESARI HANUMANTHU
Assistant Professor
DEPARTMENT OFELECTRICAL AND ELECTRONICS
ENGINEERING
ACHARYA INSTITUTE OF TECHNOLOGY
Acharya Dr. SarvepalliRadhakrishnan Road, Acharya Post Office, Bengaluru,
Karnataka 560107
2. 2
ACHARYA INSTITUTE OF TECHNOLOGY
Acharya Dr. SarvepalliRadhakrishnan Road, Acharya Post Office
Bengaluru,Karnataka 560107,
DEPARTMENT OF
ELECTRICAL AND ELECTRONICS ENGINEERING
Year 2015-2016
CERTIFICATE
This is to Certified that the Technical Seminar work entitled “SOLAR TREE” is a
bonafide work carried out by MOHSIN KHAN (1AY13EE413) in partial fulfillment for the
award of the degree of Bachelor of Engineering in Electrical and Electronics of the
Visvesvaraya Technological University, Belgaum during the academic year 2015-16. It is
certified that all corrections/suggestions indicated for the Internal Assessment have been
incorporated in the report deposited in the departmental library. The seminar report has been
approved as it satisfies the academic requirements in respect of technical seminar work
prescribed for Bachelor of Engineering Degree.
Signature of the Guide Signature of the HOD
Mr. Kesari Hanumanthu Prof. R. Vivekananda
Assistant Professor Head Of Department
3. 3
ACKNOWLEDGEMENT
I am indebted to our Principal, Dr. H.D. Maheshappa, for facilitating a congenial academic
environment in the College.
Iamgrateful to our HOD, Prof.R.Vivekananda,, for his kind support, guidance and
motivation during the B.E Degree Course and especially during the Course of our Technical
seminar.
I thank our Guide Mr.KesariHanumanthu,for his valuable guidance, Suggestions and
Encouragement throughout our Technical Seminar.
I also thank all the staff members of the Department Electrical and Electronics
Engineeringand all those who have directly or indirectly helped us with their valuable
suggestions in the successful completion of this Technical Seminar.
Mohsin Khan
(1AY13EE413)
4. 4
ABSTRACT
Now a days with the growing population and energy demand we should take a
renewable option of energy source and also we should keep in mind that energy should not
cause pollution and other natural hazards.
In this case the solar energy is the best option for us.
India is a highly populated country, so we should take the advantage of such an energy which
requires a very less space to produce energy efficiently. In this case solar tree could be the
best one for us.
We can also use the technique called “SPIRALLING PHYLLATAXY” to improve the
efficiency of the plant. It can be applied in street lightening system, industrial power supply
etc. It is much better than the traditional solar PV system in area point of view and also more
efficient. So this will be a very good option and should be implemented.
However the main problem associated with tapping solar energy is the requirement to install
large solar collectors requires a very big space. To avoid this problem we can install a solar
tree in spite of a no of solar panels which require a very small space.
5. 5
CONTENTS
CHAPTER-1: Introduction 6-8
1.1What is a solar tree
1.2Spirallingphyllataxy
1.3 Introduction about solar cell
CHAPTER-2:WorkingPrinciple 9-11
2.1 How solar cell works
2.2 Impurity Silicon (Extrinsic): P-type and N-type Semiconductors
2,3Formation of Potential Barrier and Photoelectric Effect
CHAPTER-3:Manufacturing Technology 12-16
3.1 Purification of silicon8
3.2 Ingot and wafer preparation
3.3 Doping
3.4 Screen Printing
3.5 Stringing & Tabbing
3.6 Antireflective Coating
3.7 Module Manufacturing
CHAPTER-4:Advantages of solar panel 17
CHAPTER-5: Construction & Working 18-19
CHAPTER-6:Why it is better than a Traditional system 20
CHAPTER-7:Applications, advantages& disadvantages 23
Summary and Conclusion 22
References 23
6. 6
CHAPTER 1
INTRODUCTION
It is a form of renewable energy resource that is some measure competitive with
fossil fuels. Hydro power is the force of energy of moving water. It provides about 96% of
the renewable energy in the united state. Hydro electric power plants do not use any
resources to create electricity or they do not pollute the air. The sun is a hydrodynamic
spherical body of extremely hot ionized gases(plasma), generating energy by the process
of the thermonuclear fusion. The temperature of interior of sun is estimated at 8*10^6 k to
40*10^6 k, where energy is released by fusion of hydrogen and helium.
Solar energy is available in abundance and considered as the easiest and cleanest means of
tapping the renewable energy. For direct conversion of solar radiation into usable form,
the routes are: solar thermal, solar photovoltaic and solar architecture. However the main
problem associated with tapping solar energy is the requirement to install large solar
collectors requires a very big space. To avoid this problem we can install a solar tree in
spite of a no of solar panels which require a very small space.
Solar tree is a revolutionary urban lighting concept that represents a perfect symbiosis
between pioneering design and cutting-edge eco-compatible technology. Solar Tree opens up
new prospects for urban lighting in that it satisfies today’s most pressing environmental,
social, cultural and aesthetic demands. The ability to combine innovative design with
advanced technology, along with an acute sensitivity to environmental concerns make
Artemide the ideal vehicle for the development of this project conceived by Ross
Lovegrovewith the collaboration of Sharp Solar, the world’s leading manufacturer of solar
cells.
7. 7
1.1 WHAT IS A SOLAR TREE
A solar tree is a decorative means of producing solar energy and also electricity. It
uses multiple no of solar panels which forms the shape of a tree. The panels are arranged in a
tree fashion in a tall tower/pole.
TREE stands for
T= TREE GENERATING
R=RENEWABLE
E=ENERGY and
E=ELECTRICITY
This is like a tree in structure and the panels are like leaves of the tree which produces
energy.
1.2 SPIRALLING PHYLLATAXY
It is a technique used in designing of solar tree. It provides the way to help the
lower panels from the shadow of upper ones, so that it can track maximum power from
sun.
SOLAR TREES
8. 8
1.3 INTRODUCTION ABOUT SOLAR CELL
A solar cell (photovoltaic cell or photoelectric cell) is a solid state electrical device
that converts the energy of light directly into electricity by the photovoltaic effect. The
energy of light is transmitted by photons-small packets or quantum of light. Electrical energy
is stored in electromagnetic fields, which in turn can make a current of electrons flow.
Assemblies of solar cells are used to make solar modules which are used to capture energy
from sunlight. When multiple modules are assembled together (such as prior to installation on
a pole-mounted tracker system), the resulting integrated group of modules all oriented in one
plane is referred as a solar panel. The electrical energy generated from solar modules, is an
example of solar energy. Photovoltaic is the field of technology and research related to the
practical application of photovoltaic cells in producing electricity from light, though it is
often used specifically to refer to the generation of electricity from sunlight. Cells are
described as photovoltaic cells when the light source is not necessarily sunlight. These are
used for detecting light or other electromagnetic radiation near the visible range
9. 9
CHAPTER 2
WORKING PRINCIPLE
2.1 HOW SOLAR CELL WORKS
Solar cells, which largely are made from crystalline silicon work on the principle of
Photoelectric Effect that this semiconductor exhibits. Silicon in its purest form- Intrinsic
Silicon- is doped with a dopant impurity to yield Extrinsic Silicon of desired characteristic (p-
type or n-type Silicon).When p and n type silicon combine they result in formation of
potential barrier.
Working of Solar cells can thus be based on two crystalline structure
Intrinsic Silicon
Extrinsic Silicon
Pure Silicon (Intrinsic) Crystalline Structure
Silicon has some special chemical properties, especially in its crystalline form. An
atom of silicon has 14 electrons, arranged in three different shells. The first two shells-
which hold two and eight electrons respectively- are completely full. The outer shell,
however, is only half full with just four electrons (Valence electrons). A silicon atom will
always look for ways to fill up its last shell, and to do this, it will share electrons with four
nearby atoms. It's like each atom holds hands with its neighbours except that in this case,
each atom has four hands joined to four neighbours. That's what forms the crystalline
structure. The only problem is that pure crystalline silicon is a poor conductor of
electricity because none of its electrons are free to move about, unlike the electrons in
more optimum conductors like copper
10. 10
2.2 Impurity Silicon (Extrinsic): P-type and N-type
Semiconductors
Extrinsic silicon in a solar cell has added impurity atoms purposefully mixed in with
the silicon atoms, maybe one for every million silicon atoms. Phosphorous has five electrons
in its outer shell. It bonds with its silicon neighbor atoms having valency of 4, but in a sense,
the phosphorous has one electron that doesn't have anyone to bond with. It doesn't form part
of a bond, but there is a positive proton in the phosphorous nucleus holding it in place. When
energy is added to pure silicon, in the form of heat, it causes a few electrons to break free of
their bonds and leave their atoms. A hole is left behind in each case. These electrons, called
free carriers, then wander randomly around the crystalline lattice looking for another hole to
fall into and carry an electrical current. In Phosphorous-doped Silicon, it takes a lot less
energy to knock loose one of "extra" phosphorous electrons because they aren't tied up in a
bond with any neighboring atoms. As a result, most of these electrons break free, and
release a lot more free carriers than in pure silicon. The process of adding impurities on
purpose is called doping, and when doped with phosphorous, the resulting silicon is called N-
type ("n" for negative) because of the prevalence of free electrons. N-type doped silicon is a
much better conductor than pure silicon. The other part of a typical solar cell is doped with
the element boron, which has only three electrons in its outer shell instead of four, to become
P-type silicon. Instead of having free electrons, P-type ("p" for positive) has free openings
and carries the opposite positive charge
2.3 Formation of Potential Barrier and Photoelectric Effect
The electric field is formed when the N-type and P-type silicon come into contact.
Suddenly, the free electrons on the N side combine the openings on the P side. Right at the
junction, they combine and form something of a barrier, making it harder and harder for
electrons on the N side to cross over to the P side (called POTENTIAL BARRIER).
Eventually, equilibrium is reached, and an electric field separating the two sides is set up.
This electric field acts as a diode, allowing (and even pushing) electrons to flow from the P
side to the N side, but not the other way around. It's like a hill -- electrons can easily go down
the hill (to the N side), but can't climb it (to the P side).
11. 11
When light, in the form of photons, hits solar cell, its energy breaks apart electron-
hole pairs(Photoelectric effect). Each photon with enough energy will normally free exactly
one electron, resulting in a free hole as well. If this happens close enough to the electric field,
or if free electron and free hole happen to wander into its range of influence, the field will
send the electron to the N side and the hole to the P side. This causes further disruption of
electrical neutrality, and if an external current path is provided, electrons will flow through
the path to the P side to unite with holes that the electric field sent there, doing work for us
along the way. The electron flow provides the current, and the cell's electric field causes a
voltage.
The final step is to install something that will protect the cell from the external elements-
often a glass cover plate. PV modules are generally made by connecting several individual
cells together to achieve useful levels of voltage and current, and putting them in a sturdy
frame complete with positive and negative terminals.
12. 12
CHAPTER 3
MANUFACTURING TECHNOLOGY & PROCESS
OF SLAR CELL
3.1 STEP 1 - PURIFICATION OF SILICON:
The basic component of a solar cell is intrinsic silicon, which is not pure in its natural
state. To make solar cells, the raw materials—silicon dioxide of either quartzite gravel or
crushed quartz—are first placed into an electric arc furnace, where a carbon arc is applied to
release the oxygen. A Graphite and Thermal insulator trap the heat and maintain the furnace
at required temperature for gangue (impurity) to form a slag. The products are carbon dioxide
and molten silicon. Silicon ingot is pulled down from the molten silicon using seed silicon
crystallization and floating zone technique. Passing impure silicon in same direction several
times that separates impurities- and impure end is later removed. This process yields silicon
with one percent impurity, useful in many industries but not the solar cell industry. At this
point, the silicon is stillnot pure enough to be used for solar cells and requires further
13. 13
purification. Pure silicon is derived from such silicon dioxides as quartzite gravel (the purest
silica) or crushed quartz.
3.2 STEP 2- INGOT AND WAFER PREPARATION:
Solar cells are made from silicon boules, polycrystalline structures that have the
atomic structure of a single crystal. The most commonly used process for creating the boule
is called the Czochralski method. In this process, a seed crystal of silicon is dipped into
melted polycrystalline silicon. As the seed crystal is withdrawn and rotated, a cylindrical
ingot or "boule" of silicon is formed. The ingot withdrawn is unusually pure, because
impurities tend to remain in the liquid. From the boule, silicon wafers are sliced one at a time
using a circular saw whose inner diameter cuts into the rod, or many at once with a multi wire
saw. Only about one-half of the silicon is lost from the boule to the finished circular wafer—
14. 14
more if the wafer is then cut to be rectangular or hexagonal. Rectangular or hexagonal wafers
are sometimes used in solar cells because they can be fitted together perfectly, thereby
utilizing all available space on the front surface of the solar cell. The wafers are then polished
to remove saw marks.
3.3STEP3 - DOPING:
The traditional way of doping silicon wafers with boron and phosphorous is to
introduce a small amount of boron during the Czochralski process. The wafers are then sealed
back to back and placed in a furnace to be heated to slightly below the melting point of
silicon (2,570 degrees Fahrenheit or 1,410 degrees Celsius) in the presence of phosphorous
gas. The phosphorous atoms "burrow" into the silicon, which is more porous because it is
close to becoming a liquid. The temperature and time given to the process is carefully
controlled to ensure a uniform junction of proper depth. These diffusion processes are usually
performed through the use of a batch tube furnace or an in-line continuous furnace.The basic
furnace construction and process are very similar to the process steps used by packaging
engineers.
3.4 STEP 4 - SCREEN PRINTING:
Electrical contacts are formed through squeezing a metal paste through mesh screens to
create a metal grid. This metal paste (usually Ag or Al) needs to be dried so that subsequent
layers can be screen-printed using the same method. As a last step, the wafer is heated in a
15. 15
continuous firing furnace at temperatures ranging from 780 to 900°C. These grid- pattern
metal screens act as collector electrodes that carry electrons and complete the electrical
continuity in the circuit.
3.5 STEP 5 - STRINGING AND TABBING:
Electrical contacts connect each solar cell to another and to the receiver of produced
current. The contacts must be very thin (at least in the front) so as not to block sunlight to the
cell. Metals such as palladium/silver, nickel, or copper are vacuum-evaporated After the
contacts are in place, thin strips ("fingers") are placed between cells. The most commonly
used strips are tin-coated copper.
3.6 STEP 6 - ANTIREFLECTIVE COATING:
16. 16
3.7 STEP 7 - MODULE MANUFACTURING
The finished solar cells are then encapsulated; that is, sealed into silicon rubber or
ethylene vinyl acetate. Solar module assembly usually involves soldering cells together to
produce a 36-cell string (or longer) and laminating it between toughened glass on the top and
a polymeric backing sheet on the bottom. The encapsulated solar cells are then placed into an
aluminum frame that has a Mylar or tedlarback sheet and a glass or plastic cover. Frames are
usually applied to allow for mounting in the field, or the laminates may be separately
integrated into a mounting system for a specific application such as integration into a
building.
Because pure silicon is shiny, it can reflect up to 35 percent of the sunlight. To reduce the
amount of sunlight lost, an anti-reflective coating is put on the silicon wafer- mostly titanium
dioxide, silicon oxide and some others are used. The material used for coating is either heated
until its molecules boil off and travel to the silicon and condense, or the material undergoes
sputtering. In this process, a high voltage knocks molecules off the material and deposits
them onto the silicon at the opposite electrode. Yet another method is to allow the silicon
itself to react with oxygen- or nitrogen-containing gases to form silicon dioxide or silicon
nitride. Commercial solar cell manufacturers use silicon nitride. Another method to make
silicon absorb more light is to make its top surface grained, i.e. pyramid shaped
nanostructures that yield 70% absorption that reaches the cell surface after passing through
anti-reflective coating.
17. 17
CHAPTER 4
ADVANTAGE OF SOLAR PANELS
Private home owners are discovering the benefits to our environment and a way to live
happily off the grid or are considering installing a grid-tied solar power system to offset their
electric bill or due to a belief in reducing their carbon emissions. These are great reasons to
"go solar"...
Ecologically Friendly - For obvious reasons, the use of solar panels is Eco-friendly
and considered one of the most "green" electricity resources. Because because they
operate by interacting with a renewable energy source, sunlight, there is no fear of
depleting yet another natural resource.
Decreased Electrical Bill - By switching to solar energy, you will save money on
your electrical bills every month. Even if electricity bills continue raising in the next
few months you will have the peace of mind knowing that your energy source is
based on solar power.
Low Maintenance - Solar panels have no moveable parts and are very simple to use.
After being set up properly, they do not need to be tinkered with and will continuing
working for many years. In fact, many manufacturers have 25 year warranties on their
panels.
Efficiency - No matter where you live, the chances are that you can successfully use
solar panels for you electrical needs. They are rugged and are very adaptable to
climate conditions and the latest panel models are efficient enough to work well
without facing directly south and some will even produce electricity under cloud
cover.
Regardless of who you are or what type of home you have, solar power is one of the best
ways to provide you and your family with electricity without causing more damage to our
planet.
There are many ways to take advantage of the savings gained from solar panel systems. Not
only does it help you save by cutting your energy requirement from the utility company, it.
18. 18
CHAPTER 5
CONSTRUCTION AND WORKING
The solar tree consists of some important parts in its design. They are as follows:
Solar panels
Long tower
LDEs
Batteries
Stems for connecting the panels
WORKING:
Batteries are charged during the day time.
LEDs are automatically switched on
These are used to indicate how much charge/energy remain left
Batteries are also used to store the energy so that we can use it at night and in
cloudy days when no sunlight is there.
LEDs
5.1 Light Emitting Diode (LED)
Light Emitting Diode
A light-emitting diode (LED) is a semiconductor light source. LEDs are used as
indicator lamps in many devices and are increasingly used for other lighting. Appearing as
practical electronic components in 1962, early LEDs emitted low-intensity red light, but
19. 19
modern versions are available across the visible, ultraviolet, and infrared wavelengths, with
very high brightness.
Internal Description of LED
When a light-emitting diode is forward-biased (switched on), electrons are able to
recombine with electron holes within the device, releasing energy in the form of photons.
This effect is called electroluminescence and the color of the light (corresponding to the
energy of the photon) is determined by the energy gap of the semiconductor. An LED is often
small in area (less than 1 mm2), and integrated optical components may be used to shape its
radiation pattern.
Internal description of LED
LEDs present many advantages over incandescent light sources including lower energy
consumption, longer lifetime, improved physical robustness, smaller size, and faster
switching. LEDs powerful enough for room lighting are relatively expensive and require
more precise current and heat management than compact fluorescent lamp sources of
comparable output.
Electronic Symbol of LED
Light-emitting diodes are used in applications as diverse as aviation lighting, automotive
lighting, advertising, general lighting, and traffic signals. LEDs have allowed new text, video
displays, and sensors to be developed, while their high switching rates are also useful in
really beadvanced communications technology.
20. 20
CHAPTER 6
WHY IT IS BETTER THAN A TRADITIONAL SYSTEM
India is a highly populated country, so we should take the advantage of such an
energy which requires a very less space to produce energy efficiently. In this case solar tree
could be the best one for us. It is much better than the traditional solar PV system in area
point of view and also more efficient. So this will be a very good option and should be
implemented.
For the traditional system we require large size of land to generate a small amount of power.
It requires about 1% land as compare to the traditional system. Solar energy is available in
abundance and considered as the easiest and cleanest means of tapping the renewable energy.
For direct conversion of solar radiation into usable form, the routes are: solar thermal, solar
photovoltaic and solar architecture. However the main problem associated with tapping solar
energy is the requirement to install large solar collectors requires a very big space. To avoid
this problem we can install a solar tree in spite of a no of solar panels which require a very
small space.
Example – To generate 2 MW power from a pv module we requires 10 -12 acres of land
for housing of panels only but for the same amount of energy we require only 0.10-0.12
acres of land in case of solar tree.
Traditional PV solar System Solar Tree
21. 21
CHAPTER-7
APPLICATIONS, ADVANTAGES&DISADVANTAGES
APPLICATION
Street light
House supply
Industrial power supply
ADVANTAGES
No air pollution
We wouldn’t have to worry as much about future energy sources
People in poor country would have access to electricity
People can save money
Land requirement is very less
DISADVANTAGES
Cost is high
May cause hazards to the birds and insects
Hazards to eyesight from solar reflectors
22. 22
SUMMARY AND CONCLUSION
To fulfill the increasing energy demand the people and saving of land this project is very
successful one. This can provide electricity without any power cut problem. The extra
energy can be provided to the grid.
Saving of land, this project is very successful one.
Increases the efficiency of solar cell using nanowires
The main aim of this project is uplifting the public opinionon R E S.
The Strawberry Tree, invented by the Serbian company Strawberry Energy is a variation
of the Solar Tree in that it is specifically designed to recharge mobile devices. The
company won the Sustainable Energy Week 2011” competition for its revolutionary
contribution.
There is a distinction to be made between organically inspired solar trees and structures
which have been adopted to create energy efficient parking lots. Companies such as
General Electric have installed solar panels in car parking lots to collect solar energy and
protect vehicles from sun damage. These car sheltering solar devices differ from artistic
Solar Trees in that they have no organic aesthetic. In contrast to the field of solar artwork,
they would more appropriately be dubbed elevated solar panels.
23. 23
REFERENCES
1. Agrafiotis, C.; Roeb, M.; Konstandopoulos, A.G.; Nalbandian, L.; Zaspalis, V.T.; Sattler,
C.; Stobbe, P.; Steele, A.M. (2005). “Solar water splitting for hydrogen production
with monolithic reactors” IEEE Proc.,
2. vol. 81, pp. 1202–1213, 1993.
3. Anderson, Lorraine; Palkovic, Rick (1994). Cooking with Sunshine (The Complete Guide
to Solar Cuisine with 150 Easy Sun-Cooked Recipes).
4. Balcomb, J. Douglas (1992). Passive Solar Buildings. Massachusetts Institute of
Technology. ..
5. Bolton, James (1977). Solar Power and Fuels. Academic Press, Inc…
6. Bradford, Travis (2006). Solar Revolution: The Economic Transformation of the Global
Energy Industry..
7. Butti, Ken; Perlin, John (1981). A Golden Thread (2500 Years of Solar Architecture and
Technology).
8. Carr, Donald E. (1976). Energy & the Earth Machine. W. W. Norton & Company..
9. Daniels, Farrington (1964). Direct Use of the Sun’s Energy. Ballantine Books.
10. Projects. Solar Tree Foundation. N.p.Web. 20 Feb 2013. Solar Tree Foundation
Projects.
11. Solar Tree Foundation accessed: Feb 20, 2013 Solar Tree Foundation site
12. Solar Tree. Artemide. N.p. Web. 20 Feb 2013. Artemide Brochure.
13.TR Tooke CC Nicholas AV James et al "Tree structure influences on rooftop-received
solar radiation" Landsc Urban Plann., Vol. 102, no. 2, pp. 73-81, Aug. 2011.
14.J.A. Jakubiec, C. F. Reinhart, "A method for predicting city-wide electricity gains
from photovoltaic panels based on LiDAR and GIS data combined with hourly
Daysim simulations," Sol. Energ., Vol. 93, pp. 127-143, Jul. 2013.
15.R. Berry, S. J Livesley, & L. Aye, "Tree canopy shade impacts on solar irradiance
received by building walls and their surface temperature," Build. Environ, Vol. 69,
pp. 91-100, Nov. 2013.
16. http://en.wikipedia.org/wiki/Solar_tree
17. Solar World Article on the Rams' solar projects
18. http://envisionsolar.com/solar-tree-array/