If we ran out of fuels which could we use to almost replace them.

Question

Hydroelectric
Wind
Solar
GeoThermal

You have asked this question more than once today and received answers that probably none of them could replace the fuel we use today. And you don't specify fuels for what? Is it generating electricity? If so you are excluding all of the oil and coal we use to produce gasoline and diesel fuel to run trucks and automobiles. Solar energy isn't efficient enough yet to do much (abouat 10% that last time I read something about it), geothermal can't come close (many problem associated with it), we are using hydroelectric generating plants here and there in the country (Hoover dam)(grand canyon watershed), wind generators are being used sparsely (but there is talk of building bigger and better wind generator farms). I think you received one answer today that probably all of them together could not replace our electric generating plants and I agree. And that doesn't count our gas and oil guzzling economy. The U. S. alone consumes an enormous amount of natural gas, oil (most of it imported), coal, and electrical power.

YES BUT I MUST PICK ONE

Please read the answers to your questions and choose one. We can't do your homework for you -- but only supply the information y9u need to formulate your own answers.

YES BUT NO ONE IS GIVING ME INFO

Hydroelectric
Wind
Solar
GeoThermal

Then pick the one that seems to be limitless and not cost anything; i.e., the sun (when its shining) has a zero cost for the raw material and the same for wind (when its blowing). Geothermal must come from leased lands and water must be leased from someone plus the down river population gets upset if "their" river water is diverted. Solar energy has great promise if the efficiency can be pushed up and the people pushing wind machines say that they can turn a profit. But none of them will get off the ground (in my opinion) until the price of natural gas and oil is considerably higher than it is now. I did research on geopressured-geothermal energy for about 15 years; I pointed out in some of my presentations to the public that it would cost about double the price of natural gas in those days so the incentive wasn't there to develop that resource. I have tried to give you a perspective although some of it is obviously biased. Take your pick.

I'M SORRY BUT I'M ONLY IN 5TH GRADE SO IM NOT REALLY UNDERSTANDING. COULD JUST MAKE IT MOR SIMPLE

UM ALSO DID U SEE MY ENGLISH POST? IM REALLY STUCK ON THAT ONE

I would take a stab at solar energy.

Look at my answer from the first time you asked this.

The Sun radiates about 10^(26) Watts. That's more than enough energy for our needs. The physicist Dyson has suggested that advanced civilizations make spheres around their sun to capture all of the solar energy, a so-called Dyson sphere.

Answer 1

We could resupport them using simple and much more complex 4RT's. But the goverment of Great BU will not supply the money, so no one can mine it. This way, we are adding to climate change because the goverment of Great BU would rather support a musuem of 1980's!