Many in the energy community on the west coast of the USA and the world feel that Hydro electric power in its current form is a non-renewable energy source. They feel this way because how we currently make hydro power is a non-sustainable way of making power and a to be renewable you have to be sustainable. What do you think?

Which renewable energy source has the greatest net energy yield?
A. Solar Energy
B. Hydroelectric
C. Wind
D. Biomass
E. Hydrogen Fuel
F. Geothermal

And please explain why you picked the answer , for example :

F , Geothermal , this is beacuse .......

Thanks , i need the answer+explaination by tonight .

What is the difference between a renewable energy source and a nonrenewable energy source? Give me some specific examples.

I just read an article on how nuclear power can be used to produce biofuel instead of using fossil fuels to produce it, thus lowering co2 emissions. I'm looking for an article like explaining how a different renewable energy source could also cut down emissions associated with hybrids. Anyone know of any? Please and thanks!

Some places rely on solar and wind energy right? To power their homes and such. How do they use energy in the night or when there is no wind? Do they have something that stores the energy like a big battery or something?

I have to “make” a green city and it will use renewable energy source including solar and wind energy. How would I make the wind and solar energy sustainable and not have shortages of power?

I need good definitions for both

non-renewable energy source

and renewable energy source.

Energy project. I'm working on coming up with a renewable energy source for Turkey. Thanks!

Some places rely on solar and wind energy right? To power their homes and such. How do they use energy in the night or when there is no wind? Do they have something that stores the energy like a big battery or something?

I have to “make” a green city and it will use renewable energy source including solar and wind energy. How would I make the wind and solar energy sustainable and not have shortages of power?

how do we get electricity from renewable energy source?

Sorry for the stupid question, but I don't know how to phrase it. Which renewable energy source would be easy to harness on an island and not be to ugly. By ugly, I mean really obvious it's there. Horribly phrased but If you know what I'm going on about, an answer will be appreciated :L

Which of the following is a renewable energy source?

A.Coal
B.Natural gas
C.Petroleum
D.None of the above
2.Which of the following is the most abundant fossil fuel in the world?

A.Coal
B.Petroleum
C.Crude oil
D.Uranium

3.Nuclear fission is a nonrenewable energy source because __________.

A.it can be repeated infinitely in the future without recourse
B.the process requires the use of a limited resource, uranium
C.Both a and b
D.the world will never run out of uranium

I have searched the internet but I can't clearly find what the UK's largest renewable energy source is, i.e. which renewable energy source do we use most? In 1999 it was bio-fuels but I can't tell if it's still the same now.

countries like usa and european ones. are they building wind farms and that. what ones?

and also what is the highest renewable energy source for one country?

What is the most efficient renewable energy source?