The other day we got what seemed like some junk mail from ConEd telling us that we could choose to buy our electricity from environmentally friendly sources without any difference in the level of service and a nominal increase in price ($10 a month or so).
This sounded too good to be true so I showed it to Mike and Shaun and we determined that it wasn't totally fraudulent. I just spent some time on their site and I think this could be legitimate.
Truth be told, I haven't signed up yet, but I'm definitely considering it. When I do I'll let you know the actual price increase.