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- Apr 16, 2021
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- MME RWD ER on order 3/29/21; 2017 Chev Bolt
So true. We overproduce annually, so our addition of a 2nd EV means we reduce that .02/kw payback closer to net zero for the year. Solar systems degrade at about 1% per year so eventually we'll be paying retail rate (about .11/kw here in southern AZ) in a few years if we don't conserve a little. We blast the A/C in the summer way more than necessary now.Be careful over sizing your solar system. If you generate more energy that you use it sits in the account for one year, after that the utility gets to buy out those unused credits at the wholesale rate. The wholesale rate is very low and there is no ROI on that excess capacity.