No matter how little wind you have in the area they are designed to still turn their blades easily and produce lot of electricity. There is a whole range and Variety of turbines and water pumps available according to the specific needs and requirements. In some areas people find it easy to use Gas, Diesel or Water Turbines to produce electricity. A whole range and variety of pumps and tube wells are available for the areas or parts of the World with droughts or shortage of water supply. The amount of energy received by the sun in 30 minutes is the equivalent of the power used by the entire population of the earth in one year.
Water heating is normally, domestic water heating, agricultural and commercial usage. .
The Solar panels or so as called Solar Collectors by some engineers are normally put on the roof of a house or in a Garden to catch sun light and to collect energy from solar radiation and use that energy to heat a heat transfer fluid. The function of the collector is to collect the energy falling on it and transfer it in the form of heat to the fluid in the collector. There are many kind of solar panels. The Solar Collectors, collect the sun's energy and supply to the main electric meter in the house. In a case like this the excessive electricity can be sold to the grid station in the area.