if it's on the roof, you'll also benefit from the shade the panels provide

Our generation is about 30% coal.

[QUOTE=gregpark;11093141 Also, regardless of the money saved in the long run, I'll be enjoying the satisfaction of cheating PG&E out of some of their blood money. That alone is worth something to me.[/QUOTE]

As I said before, that's one of my major motivations too. They dislike people like me who are on net metering. And like I said before, one time when I called their solar representative to ask a question, she was none too friendly.