1. INTRODUCTION2. CONCENTRATED SOLAR POWER3. PARABOLIC TROUGH4. SOLAR PANELS5. PHOTOVOLTAICS6. PV SYSTEM7. ADVANTAGES & DISADVANTAGES8. STORAGE METHODS9. NATIONAL SOLAR MISSION

• Solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP).

• Concentrated solar power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.

• Photovoltaics convert light into electric current using the photoelectric effect.

Concentrating Solar Power systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.

The concentrated heat is then used as a heat source for a conventional power plant. A wide range of concentrating technologies exists; the most developed are the parabolic trough , the concentrating linear Fresnel reflector, the Stirling dish and the solar power tower.

Various techniques are used to track the Sun and focus light. In all of these systems a working fluid is heated by the concentrated sunlight, and is then used for power generation or energy storage. Thermal storage efficiently allows up to 24 hour electricity generation.

A parabolic trough consists of a linear parabolic reflector that concentrates light onto a receiver positioned along the reflector's focal line. The receiver is a tube positioned right above the middle of the parabolic mirror and is filled with a working fluid.

The reflector is made to follow the Sun during the daylight hours by tracking along a single axis. Parabolic trough systems provide the best land-use factor of any solar technology.

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A solar cell, or photovoltaic cell (PV), is a device that converts light into electric current using the photoelectric effect.

Solar cells produce direct current (DC) power which fluctuates with the sunlight's

. For practical use this usually requires conversion to certain desired voltages or alternating current (AC), through the use of inverters.

Multiple solar cells are connected inside modules. Modules are wired together to form arrays, then tied to an inverter, which produces power at the desired voltage, and for AC, the desired frequency/phase

Many residential systems are connected to the grid wherever available, especially in developed countries with large markets.

In these grid-connected PV systems, use of energy storage is optional. In certain applications such as satellites, lighthouses, or in developing countries, batteries or additional power generators are often added as back-ups. Such stand-alone power systems permit operations at night and at other times of limited sunlight.

SOLAR PANELS

PV modules for domestic purposes

PV Array

I. There are seven types of lights in the sunlight :- VIBGYOR

• Violet • Indigo • Blue • Green • Yellow• Orange• Red The solar panel works best in the red

light whereas it works the poorest in violet light and medium in the green light.

Solar energy is a completely renewable resource.

Solar cells make absolutely no noise at all. Solar energy creates absolutely no pollution.

Very little maintenance is required to keep

solar cells running.

Solar panels and solar lighting may seem quite expensive when you first purchase it, but in the long run you will find yourself saving quite a great deal of money

Solar powered panels and products are typically extremely easy to install.

As our oil reserves decline, it is important for us to turn to alternative sources for energy.

Solar energy is not available at night. Storing energy is an important issue in order to get continuous supply of power.

Solar energy can be stored at high temperatures using molten salts. Salts are an effective storage medium as the cost low having specific heat capacity.

Off grid systems use recharges batteries to store excess electricity that can be sent to transmission grid.

high upfront capital costs for concentrators and storage

require unscattered “direct normal” solar radiation, thus limiting where CSP plants can be located

desert areas are best (but also arid)

require cooling, as with any steam power plant, creating a requirement for water or air cooling water limitations may necessitate air cooling in many

locations, with penalty in capital cost, generating efficiency and

energy cost

require large surface areas for placement of concentrators

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1.Concentrated solar power

2.Photovoltaic3.Solar vehicles4.Solar heater 5.Solar cooker6.Passive solar

energy7.Satellites and

spacecrafts8.Small appliances

like calculator 9.Remote Sensing

10.Emergency Roadside

Telephones

Proposed targets 20 GW by 2020 100 GW by 2030 or 10-12% of total power

generation capacity estimated for that year 4-5GW of installed solar manufacturing

capability by 2017

Solar radiation map of India

If one percent of the land is used to harness solar energy for electricity generation at an overall efficiency of 10%; 492 x 106 MU/year electricity can be generated

Thank you