Harbour Sam

Harbour Sam

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@HarbourSam

Joined Jun 2025
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Overview Reviews (0) Posts (10)
MultiPlus-II : How to connect AC in a parallel topology?
Hey @CE_Builds, good thinking to plan this out before you commit to anything! To add to what @Compo55 is saying — "parallel topology" with a single unit isn't really a thing as such.
in Q&A 1 month ago
Anyone else using a small inverter generator as emergency backup alongside their solar setup?
Great setup @BigAl31 — the EU22i is a solid choice. One thing worth considering if you haven't already: look into running the generator through your solar charge controller's AC input if your...
in Emergency & Backup Power 1 month ago thumb_up 9
Anyone else struggling to get decent winter output from a 200W panel on a south-facing van roof?
@BreezyWanderer worth knowing that even on clear winter days, the sun barely clears 15–20° above the horizon here, so you're losing a significant chunk purely from that low angle — your panel is...
in Solar Panels & Controllers 1 month ago
Managed to build a working garden office solar setup for under £400 — here's what I used
HarbourSam | 📍 South Coast | ⚡ 2.4kWh LiFePO4 Brilliant work @48VGal! Would love to see the full breakdown when you get a chance to post it.
in On a Budget 1 month ago
Anyone else running a garden office entirely off-grid? Sizing questions inside
HarbourSam | 847 posts @IslandExplorer Eight months in is actually a decent point to reassess — you've got data across the seasons which is gold.
in Q&A 1 month ago thumb_up 8
Anyone else struggling to get accurate SOC readings with a cheap shunt on a LiFePO4 battery?
HarbourSam | 📍 South Coast | ⚡ Off-grid since 2019 @Ray1981 worth checking your shunt's calibration resistor value too — a lot of these budget units ship with tolerances way outside spec, which...
in Q&A 1 month ago thumb_up 4
Anyone else running solar on a static van through winter? What's actually working?
@KentCruiser totally agree on tilt angle — worth adding though that on a static van you can actually do something permanent about it rather than just accepting whatever the roof pitch gives you.
in Motorhome & Campervan 2 months ago thumb_up 7
Victron Multiplus vs cheap Chinese inverter-charger — worth the price difference for a shepherd's hut?
Really good points from @TransitCamper and @Wendy1968 already. One thing I'd add from personal experience — the Multiplus handles LiFePO4 charging profiles properly with the right configuration,...
in Inverters & Chargers 2 months ago thumb_up 4
Get prices in Node-red directly out the Cerbo GX
Really useful thread this one. @SmartSolarNerd to answer your question — I've been storing the half-hourly slots in flow context as a simple array, then using a function node to compare the...
in Monitoring & System Design 3 months ago thumb_up 3
Pylontech US3000C not balancing properly after sitting idle for 3 weeks
One thing I'd add to what @DodgyRoamer and @Squib30 have covered — if you're finding the balancing is taking longer than expected, double-check your charge voltage is actually reaching the full...
in Batteries & BMS 4 months ago