things related to solar on our rooftops at moscone center and other places, on top of sunset reservoir, cogen facilities, a microhydrofacilities. there are a number of ways that we want to go out and generate power. if you look at that, we've committed to spend over $90 million, and those are great programs, but their impact is the equivalent of less than -- greenhouse gases from less than 7,000 homes. here, you're talking about spending very little. and again we're hoping 13 million of the 19 never get spent. and you get an impact 90,000 household on day one if the program goes through. the efficiency of this program is so much more efficient than any go solar program. the other we were spending 5 million a year and putting solar panels in the neighborhoods of hundreds of homes. over four years we would have spent more than this and would have impacted a come thousand homes and were quite comfortable with doing that apparently. here we're talking about a similar amount of money for 90,000 households. >> supervisor wiener: thank you. >> does that answer? >> president chiu: thank you, supervis