Renewable Energy At Home

I need to power some computer speakers from batteries. The power supply’s output is 12 volts at 850 milliamps. The only way i can think to power this is with ten 1.2 volt rechargeable batteries, and those would only last about 2 hours. does anyone have a more practical way to power a 12 volt [...]

I need to power some computer speakers from batteries. The power supply’s output is 12 volts at 850 milliamps. The only way i can think to power this is with ten 1.2 volt rechargeable batteries, and those would only last about 2 hours. does anyone have a more practical way to power a 12 volt [...]

A simple pendulum has a length of 0.75 m and a bob with a mass of 0.15 kg. The bob is released from an angle of 25 degrees relative to the vertical reference line. a) Show that the vertical height of the bob when it is released is h= L(1-cos25 ) b) What is the [...]

G. Gordon Liddy this AM went on and on about how ethenol production exists only because of ‘subsidies’. He didn’t mention all of the direct and indirect subsidies to the Oil Mafia, such as this war in the middle east. Ethenol, he said uses almost as much energy to produce as it creats. But so [...]

3 Examples of how solar energy is used. Solar energy is used as follows: It heats and lights the earth, without it we would all die on a very cold rock with no plant life. Photo voltaic cells can collect solar energy and produce an electric current. Solar collectors, usually roof mounted, are used domestically [...]

How solar energy can be produced at competitive cost for the welfare of people at large?Presently what is the status of its use in india? Use materials from space (moon or asteroids) to build solar generating plants in Geostationary orbit and beam the power down to a rectena using microwaves. We lack the space infrastructure [...]

Hello from SO TX.. I would like to know if anyone out there has SOLAR PANELS on their home? I have a 850 sq ft. house. I called Austin to a company that offers panels and installation. The cost $18,000.00, for 10 panels . The rep said we would save about 21 to 25% on [...]

Does the solar energy hit the solar panels and creates electricity.. or what ? Where can you put solar panels ? There are now thousands of happy Earth4Energy members worldwide who are saving money every time the sun rises and every time the wind blows! Check out this site: http://how-to-build-cheap-solar-energy.blogspot.com/ powered by Yahoo Answers addthis_url [...]

I’m 22 and I need to do something with my life. The salaries of the two careers are around the same, but I want a job that will last. Renewable energy is suppose to be big in the future, but I’m sure how many jobs will be available. Any suggestions? Go with electrician first. The [...]

I’m 22 and I need to do something with my life. The salaries of the two careers are around the same, but I want a job that will last. Renewable energy is suppose to be big in the future, but I’m sure how many jobs will be available. Any suggestions? Go with electrician first. The [...]