I got lots of traffic on my YouTube videos on Earth Day - lots of comments and emails too.
The most popular question was "How do you hook that up to a home?" Well, here's a diagram showing how.
Notice that I didn't mention anything about feeding back to the grid. Doing that is can make you some small money, but it's expensive to setup. In place of the DPDT (double pole double throw) switch you have a synchronizer to maintain freqency and phase alignment between your generator and the grid. Usually involves converting from AC to DC then back to AC at a loss of power and money from your pocket.