DuctTapeDave

@RetiredChef already covered the relay tantrum angle, so I'll add: nine times out of ten with Error 11 on ESS grid code application it's the AC input wiring not meeting the relay test's voltage...

@George1975 the idle draw on the 48/5000 is around 15-20W just sitting there looking pretty — I've got a Fogstar 48V bank and a clamp meter that tells no lies, so I run mine through a scheduled...

Battery capacity's the real bottleneck here, @Curly38's spot on. Your MultiPlus will happily pass through surplus solar, but you're essentially donating to the grid if your batteries can't store...

Thermal management's a good shout @OffGridMax — my garden office setup taught me that the hard way before I even got to the van conversion phase. But honestly, the thing nobody mentions is that...

You lot are making me look good here—I've been running the same Victron SmartSolar in my van for five years now and it's basically become part of the furniture at this point.

Post's got more cuts than my first solar install attempt, but fair play on the two-year slog—that's the timeline between "this'll be easy" and actually understanding your battery...

400W into 300Ah is the sweet spot until you realise you've parked in shade for three days and suddenly you're rationing kettle use like it's 1974.