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Complete newbie here. I just bought 10 panels and am trying to figure out a mounting solution. I have a perfectly sized steel frame made out of 1.5" angle iron for 4 panels to start with. Here are my questions: How much should I be concerned about the expansion difference between the aluminum...

I'm about to install my first panels and a couple of the EG4 solar mini splits. In preparation, I've been trying to educate myself on grounding and wiring to help mitigate lightning damage. I came across a couple of articles last night that had info that I hadn't read before. Would love to hear...