we have finally gotten the first electric bill with the solar screens up. The bill itself actually went up, but not because of the screens, more because there were actually more days on the bill, and school started, changing water usage and heating said water… We did the math.. we figure that the solar screens have cut the electricity used to cool the place by 10%, at this rate the screen’s won’t pay for themselves this year (with only a couple hot months left in the year) but they will by the end of next summer.