hoshmoot on Thu, 10th Dec 2009 8:54 am 

the sun is a renewable energy source but there are other sources too ,the wind and in the near future more sources will be discovered

denviros on Thu, 10th Dec 2009 1:29 pm 

Okay all sources of energy originate by the sun in one way or other.
Fossil fuels originate from plants that get the energy from the sun originally. Wood energy is obviously sourced from the sun. Solar too. Wind is generated by the change in temperatures which are generated by the sun. Waves are created by the wind which is a result of the sun. Tidal movement relates to the moon but the energy from this would be next to nothing without the wind creating the waves.
So in conclusion all energy originates from the sun except for Nuclear and perhaps some chemical. Nuclear is sometimes thought to be renewable but the waste products make it not renewable as we have to put the waste somewhere.

Ethan on Thu, 10th Dec 2009 8:05 pm 

Geothermal, Nuclear, and Hydro are the major forms of energy that aren’t directly from the sun in some way. If by renewable you mean solar, wind, biomass, hydro and geothermal. then the first three are from the sun (direct capture of photons= solar photovoltaic and thermal; harnessing differential heating of the planet = wind; harvesting plants growth with sun, water, and CO2 from the atmosphere) and the last two aren’t really (internal heat from the planet = geothermal; gravity=hydro power). Hope that helps!

sandy121 on Thu, 10th Dec 2009 9:02 pm 

I will send you to the website of Popular Science; popsci.com , and Popular Mechanics; popularmechanics.com for your answer. They have it all. Go to the search box and ask your question. They are friendly sites and if you read those two magazines most of your questions would be answered every month. You can read them for free at most libraries.

JT on Fri, 11th Dec 2009 12:42 am 

if there solar powered