Solar Energy

There are several uses for solar energy. It can be used to produce electricity and also to provide heating, lighting, and cooling. It is becoming an increasingly popular mode of alternative energy because of advanced technology which is bringing the cost of solar energy down.

Electricity is produced with photovoltaic (PV) cells. PV cells are combined into panels which can be installed on rooftops or any other area which receives abundant sunshine. Photovoltaic cells can also be installed in windows or any other glass surface that receives a lot of sunshine. The amount of energy you will be able to generate depends on your location.

Solar energy can also be used for heating water and buildings. Solar water heaters have a flat rectangular solar collector which is usually installed on a rooftop. As the water flows through the collector, it is heated by the sun, and then passes to a storage tank which holds the hot water.

Solar collectors can also be used to heat buildings. This is especially viable with large commercial buildings. Solar ventilation systems can be designed which preheat the air which enters the building. During hot weather, these systems can even provide energy for cooling the air.

Solar energy used to heat buildings can also be passive. The building is constructed with large south-facing windows. Materials such as stone absorb the heat during the day and slowly release it during the night.

Houses can also be designed to receive abundant sunshine for a daytime lighting. This can be achieved through the use of skylights and ample window area.

Solar energy has the advantage of being a clean, renewable power source. Every year its use is becoming more common for both residential and commercial energy needs. It is even being used to drive turbines which produce electricity for thousands of customers. It is not only proving to be an economically viable energy source, it also receives a high approval rating among customers.