Explain each of the following alternative thermal energy sources: Solar, Wind, Hydro, Compost, Geothermal.?
Q. please help!
Asked by asdf - Thu Dec 18 00:50:40 2008 - - 5 Answers - 0 Comments

A. Geothermal and solar are the only "thermal energy sources". Geothermal works by generating electricity from heat deep underground, usually near active volcanoes. Water is pumped down, then turned to steam which comes back up and drives a turbine. There are solar thermal power plants out there, but they are not very common and this is usually not the technology people mean when they say "solar" energy. Most of these applications involve using large mirrors to concentrate solar energy, and heat up water to drive a turbine. Solar energy (photovoltaic) turns solar radiation into electricity; photons of light knock loose electrons of silicon, which form an electric current (all a current really is is a flow of electrons.) This is the… [cont.]
Answered by Dawei - Thu Dec 18 01:04:07 2008

ENERGY....wind,solar,hydr o,transportation....?
Q. i've decided to talk about energy. the only thing now is, should i talk about specifically BC? (where im from). or simply world consumption, whats good, new ideas, etc...?? any suggestions? again, this speech must be ~5mins long to inform classmates... what should i talk about?
Asked by Marcus A - Sun Nov 23 14:03:33 2008 - - 1 Answers - 0 Comments

A. Talk about how hard it is to implement these ideas, owing to resistance from being able to deliver the energy and that some get the feeling that big oil sabotages this
Answered by Stephen K - Tue Nov 25 23:45:11 2008

What do you know about Alternate Energy?
Q. I am writing a research paper for my technical writing class and I need so more information on it anything will do (solar,hydro,wind,and etc.) also send me a copy of the web site thanks help asap.
Asked by broncosfan7_26 - Fri Jan 30 09:07:51 2009 - - 3 Answers - 0 Comments

A. there are a bunch of types like hydro electricity solar and wind. i think solar is the best. there are experimental solar panels that are basically a Satellite covered with mirrors which focuses the light into a dense concentration of solar cells. they are like thirteen feet wide and nine feet high. they already sold one for ten thousand but that was a prototype. once they make them more available in a factory they will only cost about six thousand each which is a good price considering how much you spend a year on electricity bills. it even works during the night. and if people don't buy them electric companies will and make solar fields. it will cost them less but us the same because lowering costs is really not the style of big business. [cont.]
Answered by pav89 - Fri Jan 30 09:19:37 2009