Solar Energy

It uses the sun’s power in terms of its thermal or heat energy for heating, drying, evaporation and cooling such as Solar Water Heating Systems which may be used in rural clinics, hospitals or even schools. The principle of the system is to heat water, usually in a special collector and store it in a tank until required. Collectors are designed to collect the heat in the most efficient, but cost effective way, usually into a heat transfer fluid, which then transfers its heat to the water in the storage tank. The two main types of collector are: flat plate and evacuated tube.

Photovoltaic or PV devices convert sunlight into electrical direct current (DC) by taking advantage of the photoelectric effect. The amount of energy that can be produced is directly dependent on the sunshine intensity where PV devices are capable of producing electricity even in winter and even during cloudy weather but at a reduced rate.