mr. r ydstrom, if i may. through our conversations with shell and doing market research, what we have brought back and spoken to you about in the past, we really could be offering renewable power on day one. in terms of the rate premium, it is not so significant for customer preferences. we are heading that direction. >> how does that work? -- president vietor: how does that work? does it involve the grid? how do we know that that is 100% renewable? >> at least for me, when i was a physics major, energy was the most difficult, and water was a lot easier. just like when you have multiple rivers flowing into a central river, you do not know how much which glass of water or wherever it came from, but you know how much is coming in. but the same token, the amounts of energy coming from the system needs to be balanced, and there is a very strict accounting by an independent control operator that makes sure that people who say they are putting in energy are putting in the right amount of energy and have a way of tr