I have a net metered system using six AUO Unison PM 250W modules with built in SolarBridge microinverters. It is a 1.5kW system installed in late 2011.
. Homeowner called today saying her PV production meter (standard analog EZ read kWh meter) has gone backwards. She read 7,006 kWh on 12/21/2016 and read 7,000 kWh this morning 15 days later. . She says she watches her system pretty closely and she has never seen kWh numbers that have gone backwards. . The site does not get much winter production at all due to clouds, snow and low path of the sun behind a hillside - we knew all this 6 yrs ago at the site survey so little to no production during late Dec., early Jan. is not a problem. . My question is: Do the SolarBridge microinverters draw 16 to 20 Watts 24/7? That would account for the 6kWh usage over the 15 days assuming little to no PV production due to snow and shade. . Other ideas? Thanks for the help! Dave David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 802-371-8678 cell 802-888-4917 home
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