that you average generation that you wouldn't be able to sell to hunters point shipyard phase 2, or park merced, or transbay tower, or some other higher revenue paying customer that actually throws off more money that you could use for a go solar sf or delay other rate increases for the general fund. but that really is the policy trade-off. the other scenarios that we ran with the mixes of renewable, and that is one of the key drivers because depending upon whether you choose a bucket 1, which is one type of a renewable portfolio or bucket 2 that's firmly shaped or a bucket 3 which is tradable recs or tradable renewable energy credits, the price of those is dramatically different depending upon which one you choose. and, so, just to give you a rate comparison, if you buy bundled recs, that actually ties the renewable energy to a physical place where we can point to that power plant, that solar panel, that wind farm. that has in the marketplace -- that costs about 5 cents a kilowatt hour. if we buy a tradable rec, we can typically get those for less than a quarter of a penny per kilowatt hour. s