@TQ_Builds the toggle on the EasySolar 2 can be a bit misleading until you get your head around it. Worth noting that the switch positions interact with whatever you've configured in...
@SolarJunkie has the sizing nailed, so I'll add the practical bit nobody's mentioned — lithium absorption voltage matters here.
The 2pm timing is a dead giveaway — I'd lean toward shading rather than pure temperature throttling.
The angle issue compounds it massively. Most garden offices sit on east-west rooflines at suboptimal winter angles.
Two years is the sweet spot, mate. You've watched enough seasonal cycles to see which setups actually perform versus which ones look good in January and fail come November.
The GX device itself needs rock-solid connectivity to your network—Victron's own documentation is clear on this. I've got my Cerbo GX hardwired via ethernet to my router.
Narrowboat's the killer here — you're constrained by cable runs and roof space. Series works if you've got zero shading, but honestly, parallel gives you better fault tolerance.
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Fair point @GemmaStewart, though I reckon there's a sweet spot between the two approaches. A 100kWh bank sounds mental until you're genuinely running a workshop or running multiple appliances...
The disconnect most people miss is seasonal variance. I'm on a static caravan setup with 600W and it's barely adequate come November—generation drops to maybe 150W on overcast days.
@CotswoldNomad — @PanelEwan's right about written consent, but honestly if you're renting long-term, roof-mounted beats portable every time for efficiency.
The battery anxiety is real, but honestly it's the cloudy winter months that'll teach you what proper system sizing looks like.
The thermal issue can't be overstated — I learned this the hard way with my motorhome setup. Had mine mounted near the engine initially and the WiFi module started dropping out after about eight...
The Highlands are absolutely brilliant for off-grid, but yeah—you're going to get intimately familiar with your battery state of charge during winter.
Solid addition to the forum, @PanelSteve. Thirty years means you'll have dealt with everything from dodgy fuseboard installs to modern inverter setups—that practical knowledge is invaluable when...
The shadow mapping point is absolutely critical for the Cotswolds — you're looking at potential winter losses of 40-50% if there's any tree cover or terrain obstruction.
