Tom Said:Who would be against Active Solar Energy and why?We Answered:Yeah, they're the people who get paid by the oil, natural gas, and coal industries to bad mouth free energy.Carolyn Said:how can passive and active solar energy be used in a home?We Answered:Active- Solar powered calculators
passive- ??????Carlos Said:Can you describe the differance between passive and active solar energy, provide an example of each?We Answered:Ask GOOGLECharlotte Said:Can some one explain to the minions the difference between active and passive solar energy?We Answered:Why does anyone think any solar energy is bad (did they get a sunburn?). Anyway, I think the...
Gail Said:how can start a solar energy business?We Answered:You rent a space, buy merchandise to show to customers, offer planning and installation service and then advertise. Of course that assumes you understand how solar panels and collectors work and you know how to install them without breaking the homeowners' roof or your own neck.Jamie Said:I would like to Start Solar Energy Business.But i don't how to start and where to start?We Answered:I agree, it would be a great business to get into, right now the manufacturer cannot keep up with the demand.
But I probably know less than you do.
however, we...
Antonio Said:how does a solar energy work?We Answered:Solar energy is used by humans in many ways, most popular are :
Solar water heaters : they have 70-8-% efficiency and are very economical. they use sunlight to heat water and store it in insulated tanks.
Solar PV Panels : These generate electricity from sunlight.
In natural process plants use sunlight to do photosynthesis and make food.
Solar cookers : These use sunlight to cook food.Daisy Said:how does solar energy work?We Answered:Hey Nick,
Check out the page below - it was written by someone that made his own solar panel - I think that it'll help you...
Bradley Said:From where can i get the specifications regarding solar energy based power plant?We Answered:EDIT: "bs" stands for british standards. You will find your specification here: http://www.bsigroup.com/upload/Standards…
There are at least 5 different types of solar powered commercial thermal power generation plants. These would include:
Solar power tower, using heliostats as a heat source for a convention steam generation facility
Solar parabolic concentrators (a variation uses flat concentrators)
Solar parabolic dish concentrators with stirling engines
Solar chimneys (sometimes also called solar towers or power towers but use wind generation)
Solar ponds
All of these have some variations. To some extent wind generation...
Dale Said:What are the waste by-products of solar energy?We Answered:Heat.
There is radiation, but most of the hard radiation (ultraviolet and worse) is filtered out by the atmosphere before it reaches the surface of the earth. Darryl Said:non conventiona energy products like solar energy, wind energy, bio-gas etc?We Answered:Sorry, but you will fail as a dealer of anything. Entrepreneurs do not expect other people to do their homework for them.Myrtle Said:iam wanting to get more involved in solar energy and green energy products. where do i find info on solar poweWe Answered:http://www.backwoodssolar.com/
http://www.gaiam.com/realgoods/
http://www.homepower.com/
don't know where you live, but...
Jo Said:what fraction or percentage of the world uses solar energy?We Answered:Every country on Earth uses solar energy to grow food crops.Jill Said:Solar Energy?We Answered:In order to figure out how much "load" your house is going to need, you'll need to add up all the projected electrical use that your future home will consume. You'll need to add up things like the fridge, washer, dryer, dishwasher, water heater (could be solar), TV, computer(s), all other misc electronic stuff will really suck up the power. Don't forget about the lights-think LED or compact flourescent. Also-think about adding more...
John Said:Why isn't the federal government willing to subsidize solar energy panels for homes?We Answered:great idea...but the time hasent come yet.Edwin Said:How much do solar energy panels cost?We Answered:Buying solar panels can be very expensive, especially for installation.
If your average daily usage is 6.6 kilowatt per hour, then you would need a 2 kilowatt system that could generate ten kilowatts per hour in a day. This system could cost between $10,000 to $20,000. Of course, the higher wattage, the higher the cost.
There are some alternatives to spending thousands of dollars on solar panels.
1)...
Betty Said:Which is greater: total energy equivalent received by earth via solar radiation or extraterrestrial matter?We Answered:The part about the sun is a pretty straightforward calculation.
Look up the sun's luminosity.
Divide by 4 pi a^2, where a is one au, the distance from the earth to the sun, to get the luminous flux (or just look that up).
Multiply by pi r^2, where r is the earth's radius to get the luminous power incident on the earth.
Multiply by the absorbtivity of the earth to get the power aborbed.
Divide by c^2 to convert the energy rate to an equivalent mass rate.
Multiply by some...
Brian Said:Why is solar energy a renewable resource and also some advantages and disadvantages of using solar energy?We Answered:First, its all a guess but the sun will continue to shine for about another 2-4 billion years. So for all practical purposes, its eternal.
Solar energy depends on sunshine, one disadvantage is cloudy, overcast, rainy, snow etc. days. No sunshine, no real energy. Another difficulty is converting solar energy, solar panels generate direct current (DC) and this has to be converted to AC current to run appliances, etc. in your house. In order to store solar energy, batteries...
Lois Said:What is the difference between thermal and solar energy?We Answered:Solar energy is energy from the sun.
There are many forms of energy.
- Plants use photosysthesis to convert solar energy into chemical energy.
- Solar cells convert solar energy into electricity.
- Evaporated and condensed water, thermals, and winds convert solar energy to mechanical energy.
- Copper flashing, like most things sitting out in the sun, convert solar energy to heat.
So, its solar energy until it is absorbed by the copper, then it is thermal energy (heat).
Edit: I know 2 ways to convert thermal energy to electrical. First is a thermoelectric generator. These tend...