April 11, 20188 yr 3 minutes ago, Chris Hobson said: No offence meant and no offence taken Thank you Oooh I like East-West arrays. Just completed a 25kWp East-West array. Wow, how do they perform ?
April 11, 20188 yr 5 minutes ago, ibiza said: Wow, how do they perform ? 25kWp was producing 23kW at 3:30 in the afternoon. I think they are a marvelous idea. Tilt at about 15°. You lose about 10-15% production versus a North-facing array but there is less seasonal variation and far more importantly a longer solar day. If you grid-tie and are largely are going to use energy for self consumption. This would be the way I would go. I'll take photos later this week.
April 11, 20188 yr 49 minutes ago, Chris Hobson said: 25kWp was producing 23kW at 3:30 in the afternoon. I think they are a marvelous idea. Tilt at about 15°. You lose about 10-15% production versus a North-facing array but there is less seasonal variation and far more importantly a longer solar day. If you grid-tie and are largely are going to use energy for self consumption. This would be the way I would go. I'll take photos later this week. Do you have a knowledge of how much longer it is or what are the "working hours " these days?
April 11, 20188 yr 9 hours ago, ibiza said: Do you have a knowledge of how much longer it is or what are the "working hours " these days? I have a North-west pointing array and it makes good power until well past 5pm, I easily get an extra hour out of it. See attached a comparison between my North-facing string vs the NW-facing string. I have these on separate MPPTs, but I believe it does illustrate the concept.
April 12, 20188 yr Yes @plonkster it does illustrate well. Hope the east facing panels does the same but in opposite direction. Thanks for the charts.
April 12, 20188 yr @SolarNoob thanks for the chart. I am even more encouraged with your and Plonkster's charts and Chris's post to go that way. Thanks to all of you.
April 14, 20188 yr Update of my multi strings 7:20 12+3 panels 98.2V 578w 12 panels 89.1v 262w 12:00 12+3 panels 84v 1986w 12 panels 74v 2108w 16;00 12+3 panels 79v 1007w 12 panels 85v 636w
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