I agree with Justin (as usual. lol).
It's the different fuel sources that make it interesting. Calaveras Lake happens to be a coal fired plant. Even with current AQCS it's way 'dirtier' than other fuel sources. A little more important to people like me who live just a few miles from it, a little less important perhaps to people living on the northside of SA, but it's still going to affect anybody's environment long term.
Doesn't even have to biofuel. Natural gas would already be much cleaner than coal.
Ideally though they'd make it to run on horse manure -then I'd be all set. lol