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Q&A: I’m looking for the best, low-mid RPM cheap generator/alternator.?

by Chris Devers

Question by Joar N: I’m looking for the best, low-mid RPM cheap generator/alternator.?
In order to build a wind turbine for my home. What ever information would be helpful.

Also might anyone know how to convert a car alternator to work at lower RPM?

Thanks in advance.

Best answer:

Answer by Brian BEbay has 12VDC motor for 30

What do you think? Answer below!

Q&A: What’s the best meathod to heat a outdoor 8×4 pool? heat pump or solar heating?

Question by Chris: What’s the best meathod to heat a outdoor 8×4 pool? heat pump or solar heating?
I was about to get a solar heating system installed then one of my friends suggested me to use a heat pump to heat the pool instead of solar heating. My question is which system heats the pool faster and does the Heat pump work well in Cold weather (eg. around 20-30 degrees Celsius)

Best answer:

Answer by Jerry BridgewaterWell solar heating only works with nice direct sun light so they are very limited.

If you can afford to get both then do it. The [...]

What would be the best solar powered lights to use?

by Fun with Fred

Question by Erin: What would be the best solar powered lights to use?
My parents recently moved into a new house and would like to get some lights to line their walkway. They need to be bright enough for my mother to see the path, but they don’t like the cool toned lights. Does anyone know of a good brand/model of solar light that might fit the bill? I’ve been researching this and am having a hard time finding something other than the white LED lights which I know would be the cool toned [...]

Q&A: What are the best places to use energy efficient lighting?

by Mastery of Maps

Question by Jay guy: What are the best places to use energy efficient lighting?
What are the best places to use energy efficient lighting?

Best answer:

Answer by peachIn areas that are used often such as the livingroom or family room.Actually any place where you use a light bulb is a good place.I use them in all my lamps.

Know better? Leave your own answer in the comments!

What’s the best deal for Solar Energy panels for your home?

by westbywest

Question by michellesings1: What’s the best deal for Solar Energy panels for your home?
What’s the best deal going on companies leasing out Solar Panels in California?

Best answer:

Answer by goneyou have been very mislead by someone.
Or ?
did you listen to a Obama speech or something ??

EDIT ;

thanks for response via e mail.
But if you think you can save money
by, renting solar panels , then you are a very ignorant person.
The only way that a scheme would would work ,is if the company that is leasing the panels to you ,,have
bribed ” lobbied ” the local [...]

What is the best current efficiency of silicon solar cells?

Question by muhlange: What is the best current efficiency of silicon solar cells?
Read somewhere that there was a solar cell with an efficiency of over 40% but is that one a silicon solar cell?

http://www.iea-pvps.org/pv/materials.htm

Forgot to add this. Mentions about conversion efficiency of silicon based solar cells. IMHO a bit outdated, since it was written in 2002.
@tlbs101: and that is a silicon based solar cell?

Best answer:

Answer by Robert Thttp://www.gizmag.com/go/6563/picture/29635/

The 40% is not Si, but it is multi-junction, to capture a broader frequency spectrum of sunlight. The picture in the link is hard to read, but I believe there is [...]

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Q&A: I’m looking for the best, low-mid RPM cheap generator/alternator.?

Q&A: What’s the best meathod to heat a outdoor 8×4 pool? heat pump or solar heating?

What would be the best solar powered lights to use?

Q&A: What are the best places to use energy efficient lighting?

What’s the best deal for Solar Energy panels for your home?

What is the best current efficiency of silicon solar cells?

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