Vito Build

@Barry1988 has the right of it on the physics. Worth knowing your actual numbers though — most poly panels run around -0.35%/°C temperature coefficient on Voc.

Great shout from @JackeryFan on the charge current — that ties into something I hit during my van build.

So this came up for real last winter — three days without mains after a substation fault knocked out half our street.