Grumpy Builder

Grumpy Builder

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@GrumpyBuilder

Motorhome owner from Armagh. Always tinkering with the electrics.

Armagh, Northern Ireland Joined Dec 2023
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Overview Reviews (0) Posts (26)
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Language mix-up aside, Paul's spot on about Victron being fiddly. The real pain is getting your charge controller and inverter talking properly, especially if you're mixing brands. What actually...
in Inverters & Chargers 4 months ago
Victron multiplus2 and dyness power box 10 kwh
Firmware's definitely part of it, but don't overlook the actual wiring. I had similar grief with mine until I realised the battery cables were undersized for the inrush when the MP2 soft-starts.
in Inverters & Chargers 4 months ago
ET112 as separate AC consumption
You'd need the ET112 wired to your AC output circuit, not the input. Cerbo will pick it up on the CAN bus if you've got it set up right. Fair warning though — if you're monitoring AC consumption...
in Solar Panels & Controllers 4 months ago
My garden office solar setup — 1 year review
That 150/10 is a proper workhorse, isn't it. I've got one on my cabin setup with a smaller array and it just does its job without faffing about.
in Show Your Setup 6 months ago thumb_up 2
How to size your battery bank for off-grid
Been there with undersizing. Started with 10kWh usable, thought it'd be plenty for the cabin. Winter taught me quick — you need headroom for cloudy stretches.
in Batteries & BMS 1 year ago thumb_up 2
Best value LiFePO4 batteries in 2024?
Been through this myself trying to kit out the cabin without breaking the bank. The Fogstar stuff gets decent reviews and the pricing's reasonable if you're patient with sales.
in On a Budget 1 year ago thumb_up 2
What else do you lot get up to besides solar?
Got a small stream running through the property here, been meaning to sort microhydro for ages. Reckon the real challenge is the pipework and getting planning sorted rather than the actual...
in The Lounge 1 year ago thumb_up 2
Step-by-step: Setting up Victron SmartSolar MPPT
Got a 150/35 in my cabin setup and yeah, ventilation's non-negotiable. Mine's mounted on the north-facing wall with about 150mm clearance all round — keeps it well below the thermal limits even in...
in Installation Guides 1 year ago thumb_up 2
Ground-mount solar for a woodland cabin
Ground-mounts in woodlands are a proper pain for shading, yeah. @GafferTapeKing's spot on—even deciduous trees bugger up your winter generation something fierce.
in Off-Grid Cabins 2 years ago thumb_up 3
What size inverter do I need to run a fridge off-grid?
Right, the inrush is definitely the killer here. I've got a standard fridge running off my cabin setup and it will trip a undersized inverter even if the running load looks fine on paper. What...
in Inverters & Chargers 2 years ago thumb_up 3
How to mount solar panels on a motorhome roof
Weight's the killer on vans. Had a mate stack too many panels on his camper last year — roof started flexing before he even got them wired up.
in Solar Panels & Controllers 2 years ago thumb_up 1