roblsmith3
Member
- Location
- Cary, NC USA
I am running into some issues with inspectors on the following situation.... we have 2x SolarEdge 9k inverters with 25A max output. We are combining the inverter outputs in a 100A 3 pole "solar sub panel" that will only house the 2x 40A 3 pole breakers and an 80A 3 pole MCB. This subpanel is then connected to the main conductors of the main panel via a "load side tap" using Buchanan B Taps. My question is, "Does the 120% rule still apply to this solar subpanel....limiting the backfeeding in the panel to only 30A?" If not, what part of the NEC 2011 allows me to use this subpanel as a "solar only" sub panel? Since there are not any loads in that solar sub panel, I think I can put inverter outputs into the subpanel rated all the way up to 100A. Or am I completely wrong in that thinking? Thank you for your responses in advance.