Photovoltaics: This is the name given to direct conversion of radiant energy, primarily sunlight, into electrical energy. In short: solar power. The name itself is composed of the roots 'photos' – the Greek word for light – and Volta, homage to Alessandro Volta, a pioneer he field of electrical engineering.
For a PV system, the solar electricity is generated using solar cells that capture the sunlight and convert it to electrical energy. A PV system typically includes multiple solar modules, each containing solar cells that are installed and wired together. An inverter is wired to the Ptem V systo convert the direct current into the alternating current used on the power grid. The volume of electricity produced depends on the length and intensity of sunlight falling on the system and the type and quality of solar cells and components used within the solar module.
Modern photovoltaic systems can be used on buildings or standalone systems and can endure extreme weather conditions such as rain, storms and hail. They are long lasting and represent a good investment for private homes. PV systems also make an important contribution to environmentally friendly energy supply.
The surface of the collector must be periodically cleaned to remove dust from the topsurface and get optimum output from the system. Occasional observation of the solarwater heating system to eliminate any plumbing leakages may help. The exposedmetal surfaces may be examined for any damage to paint etc. after the monsoon, toavoid further damage. Some rubber or plastic components may not last beyond 10years and may require replacement. Auxiliary heating elements also do not lastthrough the life of the solar water heating system, and require replacement at times.
PV systems offer independence from fossil fuels
Oil, coal and gas are growing more scarce and expensive. Those willing to take the step to produce their own free and clean energy from the sun are gaining independence from fossil fuels and atomic power, and also don't have to worry about the anticipated price increases by energy utilities. Photovoltaic systems are a secure investment in and for the future.

PV systems cut energy costs and deliver long-term planning security
The use of solar power does more than just make future price increases by traditional electrical utilities into a minor issue; it also cuts your current energy costs. PV systems make your own electricity supply more secure and forecastable for the long term. That cuts your energy costs for the long run.

PV systems are unbeatably clean
Running your own PV system will improve your household's CO2 balance, which promotes both the coming switchover to cleaner energy and with it a healthier environment. Solar power offers numerous benefits, since the PV system converts the sunshine directly into lectricity without the hazardous byproducts involved in conventional power generation.

PV systems pay for themselves
PV systems pay themselves off over the course of their service lives in two ways. The first is through feed-in tariffs for the local distribution grid; the second is through a reduction in energy costs by using the power you create on your own. The first factor involves a fixed price for each kWh of electricity that is fed into the general power grid, starting from the first year of operation and running for 20 years thereafter. Depending on the location and size of the system, the system operator receives a fixed compensation for solar power fed nto the grid. After amortization – the point where the system has earned back the money it costs – it then begins delivering long-term yields. You earn through the sun.