In many states back east (at leas Massachusetts and New Hampshire), you can choose who is your energy supplier, as the distributor and provider are separate items on the bill. There are several "green energy" suppliers vying for your business.

This is great but has the unfortunate side-effect of some energy suppliers telemarketing to try to get you to switch to their "lower rates", which inevitably increase again after a few months.

So check the system in your state, you may be pleasantly surprised.