Just had a random thought, sat here with lots of rain and virtually no solar generation
Assuming one had 16 x 400W panels, all facing the same direction with no shading, with VoC of (say) 40V and an inverter with 2 strings and start-up of (say) 120V with max input of 500V. By default I guess most people would spit the panels into 2 strings of 8, so each string had VoC of 320V.
But, I just wondered if one were tosplit reconfigure the string panel wiring into (say) a string of 10 and a string of 6 panels (giving one string a VoC of 400V and one of 240V) , would that perform better in low light levels - i.e. would the string of 10 panels kick in sooner than a string of 8?
Maybe by typing this, I've realised the answer to my own question, in that yes the string of 10 would kick in sooner, but the string of 6 would kick in later, so the net gain would be zero
(To clarify: I mean configure the system to have 2 strings (one with 10 panels, the other with 6) rather than 2 string of 8 panels each, using dual MPPT inverter (one for each string) in both situations.)
Hmm - thoughts?
Assuming one had 16 x 400W panels, all facing the same direction with no shading, with VoC of (say) 40V and an inverter with 2 strings and start-up of (say) 120V with max input of 500V. By default I guess most people would spit the panels into 2 strings of 8, so each string had VoC of 320V.
But, I just wondered if one were to
Maybe by typing this, I've realised the answer to my own question, in that yes the string of 10 would kick in sooner, but the string of 6 would kick in later, so the net gain would be zero
(To clarify: I mean configure the system to have 2 strings (one with 10 panels, the other with 6) rather than 2 string of 8 panels each, using dual MPPT inverter (one for each string) in both situations.)
Hmm - thoughts?
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