by comparison, the arrangement that iran has -- mraimarini has has with shell, it is not all these terms are in flux, nothing is totally hammered out. that is the general [inaudible] of it. there is megawatt hours which do not change very much depending on how many customers you have. the more you have, the lure that becomes. -- lower that becomes. >> commissioner moran: how would they be selected? >> we were thinking that would be a geographic areas. 7% of the overall residential accounts. that would be across san francisco. the actual identification of which census tract or block or however we cut of the geographic areas, we have not finalized on that. the first crack out of the box, we do not want them to opt out. but what customers that want to stick with the program. -- we want customers that want to stick with the program. it might be more receptive. >> commissioner moran: in a market survey we went over, some parts of town for more inclined to stay in. are you -- is it to equalize? >> my goal would be those who have the most chance. >> the issue i am concerned about here is as we