Hi Glen,
Yea its these cool days in early, early spring which helps
LOL, I bet this summer I will be lucky to see 175 watts per panel.
Enphase claims these inverters ( M-215's) are rated 96% efficiency.
Most of the panels hover around 4-6 watts of each other during the day. Only once or twice so far have I seen them break the 200 watt threshold. They usually cap at around 190 or so.
Yesterday was the best they have done for total output it was like 4260 watts for a short peak. ( damn it, after checking my invoice they are indeed 210 watt panels...what was I thinking? maybe after I missed out on the 225's I drilled down to the 215's and still missed out....so I guess I still had that on the brain....oh well)....
Anyway, 4620 is my potential max and after those losses I was lucky enough to hit 4260.....I'm happy.
I have about a 125 foot run to the main breaker panel, so enphase and another fellow who hangs around this board suggested I "center-feed" each sting of 11 panels to cut down on line losses.
So each string has a junction box between the 5th and 6th panel. for L1, L2, Neutral and Ground.
Since I was determined to grid tie, I went with enphase because they claimed 96%, which is about the best for string inverters too and they also had a 25year warranty...hopefully they will still be in business in 25 yrs.
