SOLAR POWER SYSTEM
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This document summarizes information about solar power. It defines solar power as the conversion of sunlight into electricity directly using photovoltaics or indirectly using concentrated solar power. It then discusses the advantages of solar power such as being renewable, reducing electricity bills, and having diverse applications. Some examples of solar power uses mentioned include generating electricity, desalination, drying clothes, and powering light posts. The document concludes by thanking the reader.
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Solar panels convert sunlight into electricity through the photovoltaic effect. They have increased in efficiency since first being developed in 1954. Solar energy is a renewable alternative to fossil fuels, which are being depleted. It can power homes by generating electricity that either feeds directly into a home's electrical system or stores excess in batteries. When connected to the electric grid, any extra power generated can be exported back to offset power drawn from the utility company.
BASICS OF SOLAR ROOF TOP PLANT.pdf
This document provides an overview of solar roof top plants. It discusses the basic components of solar plants including solar panels, inverters, batteries and how energy can be stored on grid or off grid. It also defines important solar energy terminology like solar radiation, insolation, peak sun hours and explains how silicon solar cells work to convert sunlight into electricity. The document outlines the process for manufacturing silicon solar cells and different types of solar panels. Key factors to consider when designing a solar roof top plant like consumption, space availability, tilt angle and budget are also summarized.
Solar panel
Solar panels convert sunlight into electricity through the photovoltaic effect. They have increased in efficiency since their invention in 1954. Solar energy is a renewable alternative to fossil fuels, which are predicted to deplete within 200-300 years for coal and a few decades for petroleum. Solar power has the advantage of being distributed over a wide geographic area to provide electricity access. When more electricity is generated by solar panels than is needed, it can be stored in batteries or exported back to the utility grid through net metering.
Solar cells
The first modern solar cell was invented in 1954 at Bell Laboratories. It was built on earlier work from 1883 when Charles Fritts created the first solar cell by coating selenium with a thin layer of gold. Solar cells directly convert sunlight into electricity through the photovoltaic effect. They are made from semiconductor materials like silicon and come in different generations from thin-film to those using nanostructures and quantum dots. Concentrating solar power plants also use sunlight to create steam that powers generators.
Solar power ppt
Solar power is the conversion of sunlight into electricity using photovoltaic cells or concentrated solar power systems. The sun radiates a massive amount of energy to the Earth's surface, of which solar power systems can harness a portion by directly converting sunlight to electricity in photovoltaic cells or by focusing sunlight to generate heat for electricity production. Photovoltaic cells use the photoelectric effect to produce electricity from light, while concentrated solar power uses lenses or mirrors to focus sunlight onto a small area to produce high temperatures for electricity generation.
Unit 03 -SOLAR PHOTOVOLTAIC SYSTEM
Explain Solar PV system, types, environmental impacts, and solar cells. Know advantages and disadvantages.
ppt on photo voltaic effect
Q: What is photovoltaics (solar electricity) or "PV"?
A: What do we mean by photovoltaics? The word itself helps to explain how photovoltaic (PV) or solar
electric technologies work. First used in about 1890, the word has two parts: photo, a stem derived from
the Greek phos, which means light, and volt, a measurement unit named for Alessandro Volta
(1745-1827), a pioneer in the study of electricity. So, photovoltaics could literally be translated as
light-electricity. And that's just what photovoltaic materials and devices do; they convert light energy to
electricity, as Edmond Becquerel and others discovered in the 18th Century.
Q: How can we get electricity from the sun?
A: When certain semiconducting materials, such as certain kinds of silicon, are exposed to sunlight, they
release small amounts of electricity. This process is known as the photoelectric effect. The photoelectric
effect refers to the emission, or ejection, of electrons from the surface of a metal in response to light. It
is the basic physical process in which a solar electric or photovoltaic (PV) cell converts sunlight to
electricity.
Sunlight is made up of photons, or particles of solar energy. Photons contain various amounts of energy,
corresponding to the different wavelengths of the solar spectrum. When photons strike a PV cell, they
may be reflected or absorbed, or they may pass right through. Only the absorbed photons generate
electricity. When this happens, the energy of the photon is transferred to an electron in an atom of the
PV cell (which is actually a semiconductor).
With its newfound energy, the electron escapes from its normal position in an atom of the
semiconductor material and becomes part of the current in an electrical circuit. By leaving its position,
the electron causes a hole to form. Special electrical properties of the PV cell—a built-in electric
field—provide the voltage needed to drive the current through an external load (such as a light bulb).
Q: What are the components of a photovoltaic (PV) system?
A: A PV system is made up of different components. These include PV modules (groups of PV cells),
which are commonly called PV panels; one or more batteries; a charge regulator or controller for a
stand-alone system; an inverter for a utility-grid-connected system and when alternating current (ac)
rather than direct current (dc) is required; wiring; and mounting hardware or a framework.
Q: How long do photovoltaic (PV) systems last?
A: A PV system that is designed, installed, and maintained well will operate for more than 20 years. The
basic PV module (interconnected, enclosed panel of PV cells) has no moving parts and can last more than
30 years. The best way to ensure and extend the life and effectiveness of your PV system is by having it
installed and maintained properly. Experience has shown that most problems occur because of poor or
sloppy system installation.
Solar POWER PLANT case study In LPU
The document summarizes the solar power plant located at LPU in Ludhiana, Punjab. The 400 solar panels located on the roof of the 38 block building have a total capacity of 100kW (0.1MW) and were constructed in 2013 at a cost of 1 crore rupees, receiving a 30% subsidy from the Punjab government. The solar panels generate 600V of DC current that is converted to AC current via an inverter for use on campus. The plant provides a renewable source of electricity with low operating costs but is limited by available sunlight.
Solar cell panel
Solar cell is the photovoltaic device that convert the light energy ( which come from sun ) into electrical energy.
This device work on the principle of photovoltaic effect.
solar cell
This seminar presentation provides an overview of solar cells, including their history, working principle, types, benefits, applications, and disadvantages. It begins with an introduction and then discusses the following key points:
- Solar cells convert sunlight directly into electricity via the photoelectric effect. They are also known as photovoltaic or photoelectric cells.
- The concept originated in the 1839 discovery of the photoelectric effect and was further explained by Einstein in 1905. The first highly efficient silicon solar cell was developed in 1954.
- Solar cells use a semiconductor like silicon, doped with phosphorus and boron to create an electric field at the p-n junction. When photons strike the cell, they free
Unit 2
This document provides an overview of solar and wind energy systems. It discusses solar cells and how they work, including the photovoltaic effect and different types of solar cells. It also describes the basic components and operation of solar photovoltaic systems, including stand-alone and grid-connected systems. Additionally, it covers wind energy and wind turbine technology. In summary, it is a technical document outlining key aspects of solar and wind energy conversion and power systems.
Effect of Shading on Photovoltaic Cell
Partial shading of photovoltaic cells and modules can significantly reduce their power output due to cells being wired in series. Even a small amount of shading on part of a module can decrease the output of the entire module. The use of bypass diodes can help mitigate these losses from shading by allowing current to bypass shaded cells, but shading still reduces the overall efficiency of photovoltaic systems.
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SOLAR POWER SYSTEM
- 1. JAKIR HOSSAIN INSTITUTE OF POLYTECHNIC
- 2. PRESENT A PRSANTATION BY DEPT. OF ELECTRICAL SYUDENTS SUBMITED BY :- • SUBIR KUMAR MANDAL(33) • JINNAT ALI(40) ---------------------------- CHECKED BY
- 3. SOLAR POWER
- 4. INTRODUCTION WHAT IS SOLAR POWER? HOW WORK SOLAR POWER? HOW SOLAR WORKS? APPLICATION OR USES? WHY WE KNOW SOLAR POWER? GROWTH OF SOLAR. ADVANTAGES OFSOLAR POWER. USES IN DOMESTIC PURPES.
- 5. WHAT IS SOLAR POWER? Solar power is the conversion of energy from sunlight into electricity, either directly using photovoltaics (pv) ,indirectly useing concentrated solar power.
- 6. Solar system block diagram
- 8. APPLICATIONS
- 9. WHY WE KNOW SOLAR POWER? 1. It come from SUNLIGHT which unrefundable. 2. It uses very very easy or chep. 3. Solar power the nature energy so it is harmless. 4. After Nest few years the other power sources are end. 5. Its makes and use easy we all made its home.
- 10. Development 0 1 2 3 4 5 6 7 1990-2000 2000-20005 2005-2010 2010-2015 2015-
- 11. Advantages of solar energy 1. Renewable energy source 2. Reduces electricity bills 3. Diverse applications 4. Technology development 5. Low maintene cost Disadvantages of solar energy 1. Cost 2. Weather dependent 3. Solar energy storage is expensive 4. Use a lot of space 5. Associated with pollution
- 12. Uses of solar power 1. As heat for making hot water,heating building,and cooking 2. To generate electricity with solar cells or heat engines. 3. To make the salt away from sea water 4. To use sun rays for drying clothes and taowels 5. Now days train or domestic ligt post are contai a solar panel in head and give light at night.
- 13. SOME SOLAR PROJECT IN INDIA
- 14. STATEMENT
- 15. THANK YOU