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What is the cheapest renewable energy?

flag	asked Dec 27 at 1:16 ItzelMillaray 379●3

rachel mojave · Accepted Answer · 2009-12-31 12:41:38Z UTC

The cheapest renewable energy is hydro energy, which means when the water is converted into electrical energy, it has the lowest cost to construct and maintain the generating facilities compared to the amount of energy produced. Electricity from water is produced on a very large scale, on dams especially designed and built to generate electricity by tapping the water power. Also solar power is the cheapest renewable energy source for small-scale use, such as pocket calculators, LED lights, and remote (small) electrical appliances.

Iosif Yevgeniy · Answer 2 · 2009-12-27 01:21:26Z UTC

According to PESWiki (a network of 50+ energy professionals who are dedicated to clean energy technology advancement), the cheapest renewable energy is wind power generation, with a cost of $0.04 - $0.06 per kilowatt hour. A comparison of renewable energy costs can be found here: http://peswiki.com/energy/Directory:Cents_Per_Kilowatt-Hour

mcmarlinclay772 · Answer 3 · 2010-01-01 03:11:28Z UTC

That's tricky. If you live near a large dam then i would say hydroelectric energy. It doesn't take much to build it and less money to keep it well. But if you don't and live in a house not near large renewable energy resources then solar energy will last you a good 15 or more years but its worth it.

Jean Amaury · Answer 4 · 2010-01-01 03:21:20Z UTC

The cheapest renewable energy is hydroelectric energy. Wind energy is also fairly cheap, and as it has been the form of energy receiving the most research investment, the price continues to drop. Other forms of renewable energy, such as tidal and wave energy have the potential to be cheap, but significant research money will have to be invested to mature the technology and drive the prices down.

What is the cheapest renewable energy?

4 Answers