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Thanks all, for the informed perspective on the efficiency loss issue. Seems like the degradation in my PV system output, known to be 0.5-1.0% annually, will predominate any loss in LEAF battery efficiency in sizing the solar array for the out-years. So I'll be conservative on that and won't...

A whole lot of interesting discussion on this forum regarding the dealer stated and expected degradation of the LEAF battery system with time. I see a general expectation of a degradation to 80% of initially rated capacity in 5 years, further degrading to 70% after 10 years...though certainly...

Have a 3.92 KW system in Hawaii, which of course has great solar insolation and is producing a little over the rated 6,600 KwH annually. Until we started driving/charging (L2) at home the LEAF, we were net producers, utilizing about 5,000 KwH annually for household needs. After a couple months...