I've looked into the this. problem is that solar is less cost efficient that electricity coming through your socket, most of the time.
Now, power generated by a water turbine, if you have access to moving water, is another story altogether.
there are a handful of different types of alternative energy, although I still haven't found anything that is more cost effective than power coming in through the sockets already.
could be wrong and if anyone has any bright ideas, I'm all ears.
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There is the very important issue of ecosystem impact of the turbines. In the Mekong river for example many people have and will fall into poverty (Because of damming of the river in many key parts, a physical barrier for fish and other such effects) as well as many rare species will disappear (including a dolphin species).
Look it up. http://www.youtube.com/watch?v=dC07S8QuSlw (Ruthless damming of Mekong river could displace millions)
Nuclear is by far the best option. true.
I was talking on a personal level, if someone is lucky enough to have a stream or river running through the backyard they can pretty inexpensively implement a solution that might actually save them some money.