Also which ones of those, use the most power. Also how much?

Best answer:

Answer by tekwatcher
Well, probably too many to list.

Check out: http://www.bbc.co.uk/climate/adaptation/solar_power.shtml
They list, the UK (and other European nations), Japan, Germany, and the USA as some of the biggest users.

Even Madagascar is using solar power now: http://ecoworldly.com/2008/10/01/madagascar-using-solar-to-benefit-poor/

I have also read that Italy (European) uses solar energy. India as well.

Here is a Wikipedia article on Spain’s solar efforts: http://en.wikipedia.org/wiki/Solar_power_in_Spain

Brazil and Paraguay use solar power, so it is safe to say that much of South America does.

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