Topic
Electrical & Safety
Inverters, wiring, electrical panels, code requirements, and the safety systems that keep a solar install compliant.
GuideSolar Electrical Basics: Inverters, Wiring & Rapid ShutdownThe electrical side of a solar install - inverters, your main panel, wiring, and code-required safety like rapid shutdown - explained in plain English.GuideSolar Wiring: What Cables and Wires Are Used (Overview)A plain-English overview of solar wiring - PV wire, MC4 connectors, THWN-2 home runs, grounding, and gauges - plus why wire sizing is licensed electrical work.GuideDo I Need a Main Panel Upgrade for Solar?Some homes need an electrical panel upgrade before solar, many don't. Here's how the 120% rule decides, what an upgrade costs, and the cheaper alternatives.Article2026 Solar Code: Rapid Shutdown and the NEC, ExplainedNewer NEC editions require module-level rapid shutdown and other safety measures. Here's what the current code expects from a solar install and why inspectors check it.