The document discusses solar power generation, distribution, and storage from small-scale solar power systems. It describes how solar power works by converting sunlight to electricity through photovoltaic cells or concentrating solar power systems. The document outlines the components of a solar power generation system and discusses photovoltaic effect. It also addresses performance factors, applications, advantages and disadvantages of solar power.
Overview of Solar Power Plant .
Explaining various components working & Use in Solar Power Plant that is used for Commercial Purpose be it industries or any Other commercial organisation .
In presentation photovoltaic effect, solar cell material, types of solar cell, working principle, solar pv module, PV systems, Sizing of solar PV system etc are included.
Overview of Solar Power Plant .
Explaining various components working & Use in Solar Power Plant that is used for Commercial Purpose be it industries or any Other commercial organisation .
In presentation photovoltaic effect, solar cell material, types of solar cell, working principle, solar pv module, PV systems, Sizing of solar PV system etc are included.
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it will help you on the project power consuption in hostal rooms with different devices.you will also come to know about power reading og lpu in the year 2015-16 and also you will come to know about the modern technology.
Solar power is the conversion of sunlight into electricity, through directly using photovoltaic (PV). Photovoltaic convert light into electric current using the photoelectric effect.
This new minute lecture gives an introduction to photovoltaic (PV) systems for residential use, providing an answer to following questions:
* How does a PV system work?
* What can be expected from a PV system?
* What types of systems are available?
* How is technology expected to evolve?
Solar tracking system, Full Report Submitted in B.Tech, Electrical & Electronics Engineering Final Year @ College of Engineering Roorkee-247667, Uttarakhand, INDIA.
Power consuption in household and hostel roomsANURAG GIRI
it will help you on the project power consuption in hostal rooms with different devices.you will also come to know about power reading og lpu in the year 2015-16 and also you will come to know about the modern technology.
Solar power is the conversion of sunlight into electricity, through directly using photovoltaic (PV). Photovoltaic convert light into electric current using the photoelectric effect.
This new minute lecture gives an introduction to photovoltaic (PV) systems for residential use, providing an answer to following questions:
* How does a PV system work?
* What can be expected from a PV system?
* What types of systems are available?
* How is technology expected to evolve?
Solar tracking system, Full Report Submitted in B.Tech, Electrical & Electronics Engineering Final Year @ College of Engineering Roorkee-247667, Uttarakhand, INDIA.
Solar energy, radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity. The total amount of solar energy incident on Earth is vastly in excess of the world’s current and anticipated energy requirements. If suitably harnessed, this highly diffused source has the potential to satisfy all future energy needs. In the 21st century solar energy is expected to become increasingly attractive as a renewable energy source because of its inexhaustible supply and its nonpolluting character, in stark contrast to the finite fossil fuels coal, petroleum, and natural gas.
solar energy
solar energy
Reflection and absorption of solar energy. Although some incoming sunlight is reflected by Earth's atmosphere and surface, most is absorbed by the surface, which is warmed.
The Sun is an extremely powerful energy source, and sunlight is by far the largest source of energy received by Earth, but its intensity at Earth’s surface is actually quite low. This is essentially because of the enormous radial spreading of radiation from the distant Sun. A relatively minor additional loss is due to Earth’s atmosphere and clouds, which absorb or scatter as much as 54 percent of the incoming sunlight. The sunlight that reaches the ground consists of nearly 50 percent visible light, 45 percent infrared radiation, and smaller amounts of ultraviolet and other forms of electromagnetic radiation.
solar energy potential
solar energy potential
Earth's photovoltaic power potential.
The potential for solar energy is enormous, since about 200,000 times the world’s total daily electric-generating capacity is received by Earth every day in the form of solar energy. Unfortunately, though solar energy itself is free, the high cost of its collection, conversion, and storage still limits its exploitation in many places. Solar radiation can be converted either into thermal energy (heat) or into electrical energy, though the former is easier to accomplish.
Thermal energy
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Among the most common devices used to capture solar energy and convert it to thermal energy are flat-plate collectors, which are used for solar heating applications. Because the intensity of solar radiation at Earth’s surface is so low, these collectors must be large in area. Even in sunny parts of the world’s temperate regions, for instance, a collector must have a surface area of about 40 square metres (430 square feet) to gather enough energy to serve the energy needs of one person.
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3. What is Solar Power?
o Solar power is the conversion of sunlight
into electricity, either directly
using photovoltaic (PV) or indirectly
using concentrated solar power(CSP)
o Concentrated solar power systems
use lenses or mirrors and tracking
systems to focus a large area of sunlight into
a small beam.
4. How much solar energy?
The surface receives about 47% of the total solar
energy that reaches the Earth. Only this amount is
usable.
7. How To Manufacture?
Solar panel comprises solar cells.
Solar Cell:
Solar cells produce direct current electricity
from sun light.
Solar cells are based upon
PHOTOVOLTAIC EFFECT.
8. PHOTOVOLTAIC EFFECT
The photovoltaic effect is the creation of a
voltage (or a corresponding electric current) in a
material upon exposure to light.
The photovoltaic effect is that the generated
electrons are transferred between different
bands (i.e., from the valence to conduction
bands) within the material, resulting in the
buildup of a voltage between two electrodes.
9. Direct Conversion into Electricity
A simple wafer of silicon
with wires attached to the
layers. Current is produced
based on types of silicon
(n- and p-types) used for
the layers. Each cell=0.5
volts.
Battery needed as storage
They are exposed to the
weather, their lifespan is
about 20 years.
10. PHOTOVOLTAIC
APPLICATION…
Power stations
Many solar photovoltaic power stations have
been built, mainly in Europe. As of December
2010, the largest photovoltaic (PV) power plants
in the world is the Sarnia Photovoltaic Power
Plant(Canada, 97 MW)
11. In buildings
Photovoltaic arrays are often associated with
buildings: either integrated into them, mounted
on them.
In 2010, more than four-fifths of the 9,000
MW of solar PV operating in Germany was
installed on rooftops.
12. Standalone devices
1. Water pumps
2. Parking meters
3. Emergency telephones
4 Temporary traffic signs,
Parking Meter
13. PERFORMANCE OF PV
Temperature
Generally, temperatures above room
temperature reduce the performance of
photovoltaic.
Optimum Orientation of Solar Panels
For best performance, terrestrial PV systems
aim to maximize the time they face the sun.
14. Solar Electricity:
Parabolic Dishes
Focus a large area of sunlight on a smaller receiver
for each device to generate electricity.
Efficiency of this system was 25%.
The more recent facilities converted a remarkable
22% of sunlight into electricity.
15. Parabolic Dishes and Troughs
Collectors in southern CA.
Because they work best under direct sunlight, parabolic
dishes and troughs must be steered throughout the day
in the direction of the sun.
16. STORAGE & DISTRIBUTION
Solar energy is not available at night, making
energy storage an important issue in order to
provide the continuous availability of energy
Solar energy can be stored at high
temperatures using molten salts. Salts are an
effective storage medium because they are
low-cost, have a high specific heat capacity
and can deliver heat at temperatures
compatible with conventional power systems.
17. Off-grid PV systems have traditionally
used rechargeable batteries to store excess electricity.
With grid-tied systems, excess electricity can be sent to
the transmission grid.
18. ADVANTAGES
Solar power is pollution-free during use. Production
end-wastes and emissions are manageable using existing
pollution controls.
PV installations can operate for many years with little
maintenance or intervention after their initial set-up.
Grid-connected solar electricity can be used locally thus
reducing transmission/distribution losses.
19. DISADVANTAGES
Photovoltaic cells are costly to install.
Solar electricity is not produced at night and is much
reduced in cloudy conditions. Therefore, a storage or
complementary power system is required.
Solar cells produce DC which must be converted
to AC (using a grid tie inverter).
Sun does not shine consistently
20. EFFICIENCY
Overall, the efficiency is about 10-14%.
Efficiency is far lass than the 77% of solar
spectrum with usable wavelengths.
43% of photon energy is used to warm the crystal.
Efficiency drops as temperature increases (from
24% at 0°C to 14% at 100°C.)
Light is reflected off the front face and internal
electrical resistance are other factors.