Van Jim

This is exactly what bit me on the backside two years running before I sorted it properly. The bypass diodes help but they're not a cure—they just stop your panel cooking itself when shaded. What...

Had a similar dilemma on my van setup. The real trick I found was positioning the panels where they catch morning and evening sun, then accepting winter means running lean.

Voltage sag is where the real education happens, isn't it? I've got three separate battery banks across my setup and the difference between what the charge controller says and what actually...

Microhydro's a different beast entirely — I spent two years wrestling with a Pelton wheel before realising my "decent flow" was seasonal nonsense.

Been running 400Ah LiFePO4 in a converted horsebox for three years now, so I've had a proper education in battery thermals the hard way.