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Monthly Archives: December 2009
Why does society still think that a 4 year college education is a good deal? I see students clamoring for?
student loans that they actually think they will be able to pay back in a reasonable amount of time. With the economy in shambles with no reasonable time table for recovery, how can they even find a job to pay … Continue reading
Posted in solar energy society
3 Comments
What is the numerical energy efficiency for wind energy, passive solar energy, and active solar energy?
Help!!! Wind power companies like to claim ~35% efficiency with their systems but the best recorded in operation is a maximum of 20% Solar panels are incredibly inefficient with efficiency ratings of less than 2% of energy emitted adsorbed into … Continue reading
Posted in wind solar energy
3 Comments
What are some new and potentially useful alternative energy sources?
I’m looking for something besides the usual fuel cells, solar collectors, photovoltaic cells, waste-to-energy, hydro-electric, etc. I think I read somewhere about harnessing body heat for energy. Anyone know anything about that or can give me some links on that … Continue reading
Posted in photovoltaic solar energy
5 Comments
Why the cars based on solar energy are not produced in series, and this technologies to be improved???
I see that Oil stock is not so good, and the oil-petrol is limited. I don’t see anythink to anticipate this… Solar cars are not currently a practical form of transportation. Although they can operate for limited distances without the … Continue reading
Posted in solar energy technology
2 Comments
how much does the shade from rooftop solar panels reduce energy consumption in cooling? (assume 100% covered)?
So if an average home roof in North America is covered with solar panels, how much does the shade from the panels reduce the demand for cooling via other methods, i.e. air conditioning? I’m not looking for how much power … Continue reading
Posted in solar energy panels
3 Comments
What is the ultimate source of energy for people?
a. heat energy b.solar energy c.thermal energy d. chemical energy e. nuclear energy Solar energy. Without the sun, all life dies.
Posted in solar thermal energy
13 Comments
Where can I find a good solar energy broker that knows several solar dealers in Texas. I need expert advice.?
I am buying a solar system for my house but want to buy the best solar energy equipment for the price. I also want to hire a company that uses state of the art technology and knows what they are … Continue reading
Posted in solar energy systems
1 Comment
Solar Power energy Environmental issues?
There are no environmental issues using solar power is there? None at all? There are some issues, but it is by far the cleanest possible solution. There are potential pollution issues with some of the chemicals used in the manufacturing … Continue reading
Posted in solar power energy
9 Comments
What is the best company to invest in for solar energy?
Solar Energy is the wave of the future and growing.. I’m also looking overseas perhaps Germany? Any advice would be helpful! Its gotta be Suntech Power! (NYSE:STP) This is a Chinese company that is on track to produce 1GW of … Continue reading
Posted in solar energy
4 Comments
Why is coal such a bad energy source?
http://www.cnn.com/2008/US/12/26/tennessee.sludge/index.html This story says it all. Wind, Solar, Geothermal, Hydroelectric, Natural Gas, Switchgrass Bio-Fuel, Tidal, Solar Thermal and yes even Oil. None of those are a danger to society like coal is. It IS a disaster to install a coal … Continue reading
Posted in solar energy society
3 Comments