megawatt

According to this scientist it may be feasible to harness the power of tornadoes to generate electricity. Essentially these power plants would create safe vortexes which are fed through turbines. It's estimated a power plant of this type could generate 200 megawatts of electricity enough for a small city.

Nanosolar with the help of the Google Guys has developed cheap solar panels that don't use silicon and are now bringing them to market. You can even buy one on eBay.