English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

9 answers

In truth, many fossil and renewable energy sources actually ultimately come from solar energy.Solar Cooking ,Solar Electricity ,Generators,Photovoltaic Solar Cells,Water Heaters,Solar Radios,Solar Landscape Light ,and the list will go on and on....

2007-06-12 21:23:03 · answer #1 · answered by kokopelli 6 · 1 0

Just about everything on earth is powered by the sun. The rain, the wind, life. Even fossil fuels are stored solar power from organisms that lived many millions of years ago. So windpower and hydroelectric power are all secondary solar power.
So is growing bio fuels. I guess what you mean by alternative energy sources are those that are not already being used in a large commercial scale. Photovoltaic powerstations fall into that category. Growing hydrogen producing bacteria is another exotic solar power source that is being tested in the Netherlands.

2007-06-12 20:36:31 · answer #2 · answered by DrAnders_pHd 6 · 0 0

Solar Energy is an energy source involving the Sun. Panels of Solar Cells are manufactured in factories using multiple Solar Cells such that their output voltage is either 15 Volts or 30 Volts DC. 15 Volt panels are used in 12 Volt Systems. 30 Volt panels are used in 24 or 28 Volt Systems.

A Solar Cell is a silicon wafer semiconductor chip that produces an electrical output when exposed to light. Each cell produces about 1.5 Volts DC, and the panels are made up of groupings of sells connected in series so that the total output voltage is in one of the two desired ranges. Additional strings of cells are connected in parallel to increase the total current flow from the panel. Typical panels can provide from 15 to 100 Watts of power from one panel, with various power requirements being met through the use of multiple panels.

If the DC power from the Solar Panels is fed into storage batteries, useable power may be retained long periods for later use. DC to AC, or DC to DC Inverters can be used to change the 12 Volt or 24 Volt System Voltages into other DC voltages as needed, or into 115 VAC and 230 VAC if home or business needs of that type are present.


In addition, Solar Heating Panels may be used during warm temperature periods to heat water instead of using electric or gas operated water heaters. Solar Heating Panels are generaly large black metal panels which contain water pipe tubing laid in a zigzag pattern all across the blackened surface. As the Sun heats up the black panel surfaces, the water in the tubing is heated also producing hot water. Most panels of this type have a glass insulating cover across the top of the panel to hold the Suns heat inside during windy days. Panels such as this could be connected to large, well insulated, hot water storage tanks located inside of the house for the distribution of heat (or hot water) after the Sun went down from the sky.

2007-06-12 18:51:12 · answer #3 · answered by zahbudar 6 · 0 0

Another homework assignment.

C'mon, you're not oblivious to solar power, are you. Don't tell me you listen to the Cartoon Network more than the Discovery Channel.

What does the Sun do when it shines down on us, or even when it's cloudy? C'mon, you know. It helps create the weather. What about wind power? What about wave power? What about tidal power? Heck, what about hydro-electric power from the lakes and rivers, supplied by rainwater, evaporated from the oceans by.......you guessed it, the Sun.

How about photovoltaic power? How about solar heat? Even biofuels?

Google it.
You need to plug that brain of yours back in. Me doing your homework for you won't get you any farther in life than countergirl at a Mickie D's.

2007-06-12 18:23:31 · answer #4 · answered by Anonymous · 1 0

Almost every energy source on earth is due to the sun. Oil is what remains of marine life that died millions of years ago, coal is the remains of primordial forests, hydroelectricity is generated by falling water that created the conditions for it to fall, etc., etc.

2007-06-16 15:36:44 · answer #5 · answered by johnandeileen2000 7 · 0 0

The Sun provides us with heat. Heat rises. We could develop something that would use rising air to turn gears or a turbine for energy.

2007-06-12 19:49:26 · answer #6 · answered by kevin 2 · 0 0

Solar energy. Then there is ethanol which is from corn that takes in the suns light. Ethonal is flammable and therefore can be used to substitute gasoline.

2007-06-12 18:19:03 · answer #7 · answered by R35torque 3 · 0 0

clothesline clothespins clean laundry.hang on line outside.solar clothes dryer.

2007-06-12 18:19:06 · answer #8 · answered by dixie58 7 · 0 0

ummm... solar power?

2007-06-12 18:21:36 · answer #9 · answered by six 1 · 0 0

fedest.com, questions and answers