So you want some do-it-yourself climate solutions. Popular Science is the place to go.
The magazine details how, for $300, you can build a vertical wind turbine (pictured below) for your home in about 3 days. It will generate 50 kilowatt-hours per month, which might be about 10% of your electricity use, depending on the size of your house and how efficient you are. You can also download plans at windstuffnow.
Or maybe you want something a tad bit easier to make, something to “keep your gadgets powered even when the grid fails you.” Follow these instructions, and for a mere three hours in work and $150 in parts, you’ll have your very own solar charger (pictured below).