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Solar energy would be the cheapest to maintain but installation costs are high. Wind energy would be free when the wind blows, but again would cost a lot to install. There are many variables that go into what makes energy sources the pricing that they are.

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Q: What is the cheapest energy source?
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Related questions

What is the cheapest alternative energy source?

the cheapest alternative source of energy is biomass. because we can use it all and free and easy to find.

What is cheapest source of energy?

solar energy or a hamster wheel

What is the cheapest source of energy?

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Why electrical energy prefer over other form of energy?

Because it is the cheapest source.

What is the cheapest energy source found in the US?

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Which is the cheapest electricity?

Hydroelectric power is the cheapest renewable energy source for large-scale production. That is, it has the lowest cost to construct and maintain the generating facilities compared to the amount of energy produced. Solar power is the cheapest renewable energy source for small-scale use, such as pocket calculators, LED lights, and remote (small) electrical appliances.

Why is people fighting over petroleum?

because it's the cheapest/most powerful energy source there is

What are the cheapest source of finance?

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What is the best type of renewable energy?

It depends on where you are and how much wind, sun, etc. you get.

Why is wind the best energy source?

It is renewable energy source (i.e. non exhaustible). It is clean energy source (i.e. not polluting environment). However, its use has limitations of availability of sites with efficient wind speeds and not heavily populated.

What are the pros and cons of using Nuclear energy?

The kWh produced by nuclear energy is the cheapest. It is a clean energy that does not pollute the environment. It gives chance for people to work during its construction and operation. It is reliable source of energy.