Green Energy Sources

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do you know some alternative electricity/green energy sources?

i am doing a thesis and looking for green and renewable energy methods that can be installed in the design of my building/development.

it is a residential(condo) with commercial(community mall) development in a tropical climate.

the condo's target market are middle-income families so the cheaper the cost of the green/renewable energy and its installation into the building, the better

the renewable power need not cover the whole electricity consumption, just a significant percentage to cut drastically on electricity bills

if you also have some sites that are about cheaper/clean/renewable/sustainable energy, or buildings that used cheap renewable electricity, let me know

thanks!! =)

I'm in a bit of a hurry right now, so I'll just leave a couple of links, since noone else answered that part of your question yet.

Renewable Energy Sources - Thomas Edison Energy - Old Invention New Product Edison Current


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