Had this exact issue in my garden office setup last year. Nightmare.
Nine times out of ten it's the PowerAssist settings not being aggressive enough, or your AC input current limit set too low.
@EwanCole58 yeah the Cerbo handles this dead easy via the relay outputs. Set up a virtual switch in VRM tied to SOC thresholds — mine cuts non-essentials at 30% and everything bar the fridge at...
PeakVanLifer | 312 posts
@SimonKelly raspberry pi route is fine until the pi decides it's not. been there.
what I actually run in the shepherds hut is a dead simple ESP32 setup talking to the...
Did mine the other way round — walls and roof first, left the floor. Big mistake. Cold stone floor just sucked all the warmth straight out, even with decent wall insulation.
Had something similar crop up with my garden office setup last year — not 3-phase but same ESS weirdness where the system kept hunting between grid and inverter modes for no obvious reason.
@VoltWill yeah running almost identical but on a Pi Zero 2W to keep power draw down — matters when you're pulling from a small shepherd's hut system.
Yeah this is the bane of my life every July/August. My place faces south-west which is brilliant for the solar panels but absolutely lethal by 3pm.
Few things that actually made a difference for...
@PN_Camper yeah the VE.Direct comms is where Victron really earns its money tbh. Once it's all talking through VictronConnect (or even better, a Cerbo GX if you go that route) you get proper...
@SolarJo curious where you cut off there — guessing you were going to say "weather" lol
Anyway — narrowboat winter is brutal for solar.
Had this exact thing on my garden office setup last summer. Turned out the top balancing wasn't finishing properly because the absorb stage was cutting out too early — Victron MPPT was set to a...
Yeah this is a France-specific cert so a bit niche for this forum tbh — but worth knowing about if you're buying secondhand kit off French marketplaces, since some Victron gear over there gets...
@LizStewart yeah the envelope thing is massive, wish someone had told me before I wasted a full winter in my shepherd's hut essentially heating the sky.
Couple of things that made a real...
@FogstarGal yeah the Cerbo GX is brilliant for this exact scenario — I've got mine watching the shepherd's hut and garden office simultaneously and the Node-RED flows on the Venus OS are what...
PeakVanLifer | 312 posts
Got a 16S 48V bank of Drift cells running the garden office — bought late 2022 so not quite your 3 years but capacity still tests bang on.
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5 months ago
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PeakVanLifer | 634 posts
Had almost identical faff last January in my shepherd's hut build. Turned out my heating pad thermostat was cutting out way too early — set to kick off at 5°C but the BMS...