Makes you wonder what is officially calibrated to what....is digital more accurate or analog utility meters...??
________________________________ From: Marco Mangelsdorf <ma...@pvthawaii.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: Douglas Bath <doug...@pvthawaii.com> Sent: Thu, May 6, 2010 8:11:16 PM Subject: [RE-wrenches] FW: Enphase performance Marco, I have a revenue grade kWh meter on my 3 Enphase 175 system that is owned by the utility (production based incentive in WA state) and the Enphase monitoring reads about 6% over the revenue meter. This has been over a one year period. I've been very pleased with the performance using either measurement. Brad AEE Solar
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