I have a question on inverter "phasing". By that, I mean connecting multiple 240 volt inverters to a common single phase sub panel or service panel and the need (or not) of making sure that L1 -L2 correspond on each inverter to the L1 - L2 buss bar in the panel. I recall issues in the early days with the SMA 2500's and the need to "phase" the inverter ac outputs so that the L1 - L2 was the same with all the inverters. I have a Sunpower system with multiple 5200's that is reportedly back feeding half of what was expected, even though the production numbers on the inverter are showing full expected production. I haven't examined the site yet.
Max Balchowsky SEE Systems 760-403-6810 "Building a Better Future For The Next Generation"
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