We turned off our tankless hot water heater today, we probably could have done it a couple of day’s ago, the temps have been been 140 and 160. This is a little earlier than last year, but I feel pretty comfortable about it. We have also been making quite a bit of electricity the last few day’s, in the 15 and 16 KWH range. That is plenty for us with some to spare. Energy efficiency is the key, the more efficent your house the smaller array you need for generating your power. We left enough room for 6 more panels on our pergola, but I don’t think we will need them, I think what we have will charge our car, run the house, and charge my bicycle. I am adding electric assist to my bike, it will cost about 3 cents worth of electricity to charge it each day and will go from 15 to 30 miles on a charge. Now that’s cheap transportation!