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The voltage drop calculations are crucial here, so let me break down what I've learned from my own caravan setup. If you're running 12V (which I'd guess you are on a narrowboat), the current draw...
FormerMechanic14 in Q&A 2 years ago thumb_up 3
Right, I'll cut through this one. Portable panels sound ideal on paper, but I learned the hard way they're a false economy if you're actually trying to live off them. I went the cheap fixed route...
GafferTapeKing in On a Budget 2 years ago thumb_up 1
Worth separating the theory from the narrowboat reality here. Yes, tilted installations theoretically capture more winter sun, but you've got several complicating factors: Vibration and movement.
Dodgy Roamer in Marine & Boat 2 years ago thumb_up 4
Mate, the van's basically a free A/B test before you drop ten grand on a static setup and realise you've massively overspec'd the battery because you thought you'd run a workshop 24/7 (spoiler:...
Smithy in Emergency & Backup Power 2 years ago thumb_up 2
The other lads have nailed the core issue — you're hitting inrush current limits that a 1000W unit simply can't handle.
Marine Phil in Inverters & Chargers 2 years ago thumb_up 1
The lads have covered the essentials, but here's the practical bit that catches people out: your BMS is managing four distinct protection layers simultaneously. Cell balancing is the one most folk...
Panel Ewan in Batteries & BMS 2 years ago thumb_up 2
You've all hit the main points, but here's what actually swayed me: the usable capacity math. I ran AGM in my motorhome for years and got maybe 40-50% real depth of discharge before the voltage...
LiFePO4Nerd in Batteries & BMS 2 years ago thumb_up 3
Brilliant to have you joining properly, @PanelSteve. Thirty years in the trade gives you perspective that's worth its weight in solar panels — you'll have seen how installations have evolved...
Spot having a retired sparky around — that's gold for anyone running their own setup. Thirty years means you've seen the standards evolve and the cowboys come and go. One thing I'd say though:...
Golden Socket in Introduce Yourself 2 years ago thumb_up 1
The shepherds hut is genuinely workable, though you'll want to be brutally honest about your actual usage patterns first.
Carl Baker in Garden Offices 2 years ago
The paralysis thing is real. I was guilty of it too with my boat setup—ended up going in circles for months reading Victron documentation instead of just installing a basic system and learning as...
Panel Julie in General Chat 2 years ago thumb_up 1
Gatekeeping's mental, innit. I'm literally running a static caravan off solar and batteries whilst charging a work van three times a week—by some people's logic that's "not real...
Border VanLifer in General Chat 2 years ago thumb_up 2
The usable capacity point is spot on, and it's where a lot of people come unstuck. On my garden office setup, I've got 10kWh of lithium (Victron LiFePO₄ batteries) but I'm only cycling between...
Loch Spirit in Show Your Setup 2 years ago thumb_up 1
Spot on about inrush current, @LiFePO4Nerd. I've got a Victron 3000VA in my setup and it handles it fine, but I've seen people use undersized pure sine units and wonder why their compressor fridge...
Heath Gazer in Motorhome & Campervan 2 years ago thumb_up 1
Dead right that the van's your prototype workshop — I've been running a static caravan setup for three years now and the difference between what you think you'll need and what actually drains the...
Rob in Emergency & Backup Power 2 years ago thumb_up 3
The real killer is when you realise your fancy Victron setup can't magic electricity out of a November sky, and suddenly you're rationing kettle use like it's 1943.
ExFarmer in General Chat 2 years ago thumb_up 3
Mate, I tried this on my narrowboat and ended up with a £400 Victron alternator controller just to stop it frying my LiFePO₄ — might've been cheaper to just buy a proper marine alternator in the...
Essex Nomad in Q&A 2 years ago thumb_up 1
Have you looked at running it on a timer during peak solar hours? That's the angle I've not seen mentioned yet. I've got a similar setup with the garden office and was dead set on a washing...
Dodgy Mechanic in Q&A 2 years ago thumb_up 3
Mounted mine on the curved roof of my cabin last year — the trick is accepting you'll lose maybe 5-10% efficiency from the flex, but gain the ability to actually have solar without ripping the...
Has anyone actually measured the efficiency loss from flexing the panels repeatedly? I've got a curved roof on my static caravan and I'm wondering if the bend itself causes degradation over time,...
Bay Tim in Installation Guides 2 years ago