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Author Topic: East and West panels – share a micro inverter  (Read 462 times)
Iain0707
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« on: August 06, 2018, 12:06:23 PM »

Is there any reason East West panels can’t use the same micro inverter, to reduce the cost and payback period?

Arrangement would be 2x250Wp panels on the East and same on the West, one 500W Micro inverter with two MPPT inputs. Each of the 250W MI inputs has a Y connection so can receive from both E and W. Blocking diodes x4 fitted, one on each individual panel’s OP.

The shaded panel would have a tiny output, reflections from clouds, while the sunny side would be outputting a higher voltage, so the inverter would only “see” the sunnyside panel.
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planetming
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« Reply #1 on: August 09, 2018, 08:37:08 PM »

All what you say makes sense, but unless there is a restriction on each input power, why not just put the E and W chains on the two inputs. You won't need the Y connectors and diodes then. Just my opinion.

Robert
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