Seattle City Light (our local electricity provider) has a program called Green Up where you can buy your electricity from renewable energy sources. You can purchase your annual electricity usage at 25%, 50% or 100% levels (e.g. the 100% level means that 100% of your power comes from renewable energy sources).
We already get about 87% of our electricity from clean hydroelectric power (except for that whole dam thing, it's a great source of energy), but the rest can now be supplied from other alternative energy sources such as the Stateline Wind Project in Eastern WA. It is the largest single wind farm in the U.S.
I know there are drawbacks to both hydroelectric and wind farm generated energy, but it's better than the nuclear, natural gas and coal mix we currently get.
Anyway, we were contemplating investing in solar panels for the house, but since we can now purchase 100% of our electricity from renewable energy sources, we might just put that on hold.
Sign me up!