Spent last winter doing exactly this up here in the Pennines. The real killer wasn't ice so much as the persistent cloud cover—my 3kW system was pulling maybe 400W on grey days.
Been down this road with my motorhome setup. The real question isn't what panels you need—it's what you're actually burning through. I logged mine for three months before finalising anything.
The damp issue is real, but I'd add something from my motorhome years — it's not just about ventilation, it's about understanding where the moisture's actually coming from.
Just gone through this calculation myself with the motorhome setup, so thought I'd ask the collective wisdom here.
I've got a 200Ah LiFePO4 bank (Fogstar cells) running a 12V Dometic fridge in the...
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