Energy sources


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Related to Energy sources: Renewable energy sources

Energy sources

Sources from which energy can be obtained to provide heat, light, and power. Sources of energy have evolved from human and animal power to fossil fuels, uranium, water power, wind, and the Sun.

The principal fossil fuels are coal, lignite, peat, petroleum, and natural gas; other potential sources of fossil fuels include oil shale and tar sands. As fossil fuels become depleted, nonfuel sources and fission and fusion sources will become of greater importance since they are renewable. Nuclear power is based on the fission of uranium, thorium, and plutonium, and the fusion power is based on the forcing together of the nuclei of two light atoms such as deuterium, tritium, or helium‐3. See Nuclear power

Nonfuel sources of energy include wastes, water, wind, geothermal deposits, biomass, and solar heat. See Geothermal power, Solar energy, Wind power

Fuels which do not exist in nature are known as synthetic fuels. They are synthesized or manufactured from varieties of fossil fuels which cannot be used conveniently in their original forms. Substitute natural gas is manufactured from coal, peat, or oil shale. Synthetic liquid fuels can be produced from coal, oil shale, or tar sands. Both gaseous and liquid fuels can be synthesized from renewable resources, collectively called biomass. These carbon sources are trees, grasses, algae, plants, and organic waste. Production of synthetic fuels, particularly from renewable resources, increases the scope of available energy sources.

Energy management includes not only the procurement of fuels on the most economical basis, but the conservation of energy by every conceivable means. Whether this is done by squeezing out every Btu through heat exchangers, or by room-temperature processes instead of high-temperature processes, or by greater insulation to retain heat which has been generated, each has a role to play in requiring less energy to produce the same amount of goods and materials.

References in periodicals archive ?
In general, as part of the concept for transition of Kazakhstan to "green economy", the volume of electricity generated from renewable energy sources is planned to reach 3 percent of the total volume of electricity by 2020 and 10 percent by 2030.
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President Aquino's two-track energy program consists of using coal-based as well as renewable energy sources, he said.
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To play, each student has a randomized Energy Bingo card with 23 energy sources and two free spaces and will win by getting five sources in a row.
The talks centred on the examination of measures to be taken to focus on and dev elop cooperation in renewable energy sources.
With gas prices on and off campus hovering between $3 and $4 per gallon in the spring 2006 semester, college and university faculty and students planned summer field trips and academic practica focused on developing renewable energy sources and solutions to bring back to campus in the fall.
Europe has been as busy as anyone in trying to promote new energy sources, especially as oil prices have climbed around the globe.
Whether developed or developing, nations are caught between a rising population generating massive amounts of waste and the impending arrival of hard limits to nonrenewable energy sources.
what possible "clean" and renewable alternate energy sources are being considered.
Instead of investing in nuclear power, which just trades one set of problems for another, let's invest in renewable energy sources like wind and solar energy.

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