i think ms. hale walked through it in terms of getting a credit rating. >> do you know -- what i am saying the models for what the budget, scope and timeline for clean power sf revenue bonds could look like? what i am asks is you are waiting for the credit rating of clean power sf to sort of begin the bond process if you were to have clean power sf revenue bonds. with the city wide enrollment, what is that timeline and scope look like? is there a timeframe that after city wide enrollment then that capacity is there? >> i can give you a general sense. we think that it could be about a three year period following stabilization of the program's revenues and enrollment so i think this is something that our sfpc finance team is thinking about, working on. i am happy to flush this out further. the clean energy the marin county program were the first to receive a credit rating. it probably took them like 7 or 8 years following the service start. we don't think it will take us that long. we have put in place