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Hearing opposite things from two electricians whom I respect. Background Main panel: 125 amp busbar 100 amp overcurrent / single phase Conductors from the Powco feed into the centerfed busbar, not lugs or breaker on top. Inverter: 4000 Watts/50 amp OPD, so 50 amp Breaker for inverter on...

I will have six conductors coming from three strings going into my future combiner. I want to transition the wires to THWN. If I pre-connect everything upstream, presumably they'll be carrying 90V Open Circuit @ 10 ADC. How do I deal with this? A. Do it at night? B. Hold off connecting the...

I am having fits with the state's energy commission not recognizing my battery technology for my small grid tied system. Can they tell if I have batteries connected to a string inverter?

A licensed electrician who probably didn't know that much about solar (not that I do!) told me I needed a line side tap. My residential service is single phase, 125A busbar with 100A overcurrent protection. The mains are underground and the transformer is not that clo$e. :>( I would prefer not...