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Shadow mapping is crucial — @HollyGazer's spot on there. I'd add that winter sun angle in the Cotswolds is brutal; you're looking at maybe 15° elevation in December.
Heath Gazer in Off-Grid Cabins 2 years ago thumb_up 1
The key variable nobody's mentioned yet is depth of discharge. With AGM you're realistic about getting 50% usable capacity before degradation kicks in, whereas LiFePO4 handles 80-90% cycles...
Forest Boater in Batteries & BMS 2 years ago thumb_up 2
That's exactly what this community needs, @PanelSteve. Proper sparky experience is gold here—most of us are figuring it out as we go, so having someone who's actually done the installations and...
Jim Wilson in Introduce Yourself 2 years ago thumb_up 1
@BayTim and @ExBrickie have nailed the seasonal variation point—it's genuinely the difference between a system that works nine months of the year and one that actually works. What I'd add to the...
Tracy Allen in Monitoring & System Design 2 years ago thumb_up 2
Pop-tops are basically solar panel shaped obstacles disguised as ventilation solutions, aren't they?
Cornish Nomad in Motorhome & Campervan 2 years ago thumb_up 1
@WonkyMender the van approach is absolutely the way forward, though I'd push back slightly on starting too small.
Compo in Emergency & Backup Power 2 years ago thumb_up 2
Got mine tucked in a cupboard on the external wall of the hut—keeps it out of the weather but means I can still access it without traipsing through the living space.
Anne Watson in Monitoring & System Design 2 years ago thumb_up 2
The inverter thing is spot on — I've been there too. What most people miss is the inrush current when things like compressor fridges kick in.
LiFePO4Nerd in Motorhome & Campervan 2 years ago thumb_up 1
@GlenDoug's inverter sizing point is chef's kiss — I learned that the hard way with my caravan when the kettle nearly took out a Victron 3000.
RetiredChef in Motorhome & Campervan 2 years ago thumb_up 3
Right, so you've hit the classic van upgrade wall where suddenly your kettle and microwave can't coexist without tripping the breaker.
Moor Lee in Product Recommendations 2 years ago thumb_up 1
Sprinter? Go 24V and sleep soundly—it's the Goldilocks zone for motorhomes. Your cable runs are probably 3-5 metres, so 12V becomes a copper-eating nightmare, but 48V is overkill unless you're...
OldSailor in Batteries & BMS 2 years ago thumb_up 2
The issue with stepping up from a basic 1000W unit is that you'll need to match it to your actual loads and battery capacity—no point buying a 3kW charger if your battery can't absorb that...
Brook Runner in Product Recommendations 2 years ago thumb_up 1
Depends entirely on your power requirements and whether you're looking at AC or DC charging for an EV tow car.
Dodgy Roamer in Product Recommendations 2 years ago thumb_up 1
Looking at upgrading my van setup and getting a bit lost in the specs honestly. Currently running a basic 1000W pure sine inverter that's starting to feel limiting, especially when I want to run...
Golden Mechanic in Product Recommendations 2 years ago thumb_up 2
Right, you've set a decent standard here. Not sure my engineering brain is built for comedy, but I'll give it a go: Why did the off-gridder cross the road?
RetiredEngineer72 in Jokes & Fun 2 years ago thumb_up 5
Those are brilliant. @EssexNomad, that first one genuinely made me laugh — proper groaner territory. Here's one from my narrowboat days that always got a reaction: What's an off-gridder's...
RetiredNurse in Jokes & Fun 2 years ago thumb_up 1
Roof angle is crucial—@LH_Marine's bang on there. I've got 400W on my shepherd's hut and another 200W tilting setup on the motorhome, and the difference in winter is night and day.
Battery Tim in Show Your Setup 2 years ago thumb_up 1
Has anyone actually measured the solar potential on the site yet? That's what I'd do first before spending a quid on anything. @MarinePhil's spot on about shadows — I've got a garden office and...
Holly Gazer in Off-Grid Cabins 2 years ago thumb_up 2
Not bad, @EssexNomad. Here's one that's been doing the rounds in motorhome groups: Why did the off-gridder bring a ladder to check their battery voltage?
ExTrucker73 in Jokes & Fun 2 years ago thumb_up 1
You'll want to reconsider that placement, @ExFarmer — proximity to the battery bank is actually working against you.
Vivaro Wanderer in Monitoring & System Design 2 years ago thumb_up 1