FormerCop77

@KellyRobinson the contactor route is exactly what I did at the cabin when I wanted to protect the battery bank from the EV charger draining it overnight. The key thing nobody tells you upfront —...

@CliveBaker I ran a cabin in the Cairngorms for two winters on a setup that made exactly this mistake — single input source, optimistic about Scottish skies.

@OffGridGeek raises a fair point about Solar NET reliability — had a similar headache when I was wiring up the cabin a few years back. What tipped my decision was load profile.

@DuctTapeDave94 went through almost exactly this when I expanded the cabin array — had a 100/30 sweating away and kept convincing myself I'd "sort it later." Eventually swapped to a...

Both valid points already covered, so I'll add the bit nobody mentions until it's too late — future-proofing regret. I built my cabin with what I thought I'd need, went with a Victron MultiPlus-II...

Running a Victron Multiplus II (5kVA) with 15kWh of Fogstar Drift LiFePO4 and a 4kW array on the cabin roof.

@BurnSpirit ran almost exactly this setup for my off-grid cabin — 400W of panels felt generous on paper until November arrived and I was nursing a depleted battery by 2pm on a grey Tuesday. The...

Worth adding something nobody's mentioned yet — phone interference matters more than you'd think. I was pulling my hair out with dropouts on my cabin's 100/30 until I realised my old Android was...

Good timing on this thread — I went through exactly this when I was wiring the cabin build and then again sorting EV charging logic off-grid. One thing nobody's mentioned yet: if you're pulling...