Energy Sources

To harness energy from natural resources is our most common practice, but it is depleting our resources. We are searching for alternative and more lasting energy sources. Fortunately there are a variety of alternatives that have emerged, here are a few of the more promising and available energy sources:

Solar: Presently solar energy is used mostly to heat furnaces in homes and swimming pools. In future it can be used to run cars and power plants. Miniaturization is speeding up the ways in which this energy source can be used; the smaller the parts, the more ways in which this power source is utilized, and it's currently being found powering calculators, watches, mp3 music players and radios, among other products.

Wind: Wind power is used to generate electricity for homes. But it is dependent on local weather conditions. In future wind power can be used to generate electricity for national grids.
     Below: Nuclear power plant at Three Mile Island; solar panel on a house roof; a rooftop array of wind turbines; a vertical-axis wind turbine; underground coils being laid for geothermal heating system.

Geothermal: This energy is obtained from internal heat of the earth and is used to heat homes. It can be used to generate steam to run steam turbines.

Hydroelectric: This electricity comes from damming rivers and using the rushing energy of water to generate electricity.

Nuclear energy: Nuclear power is generated by using Uranium, and presently corresponds to 11% of world’s energy needs. It produces huge amounts of energy from small amounts of fuel.

Fossil fuel: Coal, oil and gas are called fossil fuels, and they provide 66% of the world’s electrical power and 95% of total energy demands. These are depleting fast, they are not renewable, and the use of them contributes to much environmental pollution.

Finding more sustainable, cleaner alternative energy sources is our mantra for a safe future.