Here is where Solar Power comes in, almost as a savior. Power generated through solar systems is renewable, sustainable and environment friendly. Solar energy is often called “alternative energy” to fossil fuel energy sources such as coal. Solar is not just a ‘green product’ but a ‘green way of living’. Solar power systems are simple and easy to maintain as against the popular belief that they are complicated. Let me briefly and in simple terms explain how solar systems work.
A solar power system uses photovoltaic (PV) technology to harness the sun’s rays, converting sunlight photon energy into electrical current. Solar panels produce energy from daylight, they still produce electricity on cloudy or overcast days. Solar power can be used directly in your home to power lights and appliances – or exported to the electricity grid. At night when your panels can’t produce electricity, you draw your electricity from the battery bank. A solar power system contains of many major elements: 1) Solar Panels, (SPV modules) :- which are usually mounted on a rooftop or terrace. 2) Charge Controller :- This electronic device that regulates the charging of batteries. 3) Batteries :- The solar power thus generated during daytime needs to be stored for use during non–sunny hours. This is done by batteries and 4) Inverter:- To convert DC generated by the SPV modules to AC to power the appliances that run on AC power. The most popular SPV systems are made of mono or polycrystalline silicon cells or using thin film. The system is easy to maintain and works for upto 20-25 yrs. The initial installation cost is recovered within 5-8 yrs, after that power is free for the remaining years.