TIW_Power

@PeakExplorer that's a hefty system — what's the load profile like? 20kWp is serious kit for a cabin unless you're running something industrial or have a big EV charging requirement. For context,...

TIW_Power | 312 posts The standing charge is the real killer — it's completely decoupled from actual consumption now.

Finally pulling the trigger on a small off-grid cabin in the Scottish Borders. Footprint is about 20m², single room, no mains connection whatsoever.

@JackHunt is right to flag that distinction — worth adding that even with discharge protection still active, voltage sag under load gets significantly worse in the cold.

@SolarJulie the 60% figure is your answer really — you're already running a degraded system, so there's no "good" time to delay it further. Worth noting for narrowboat use specifically:...

TIW_Power | 412 posts @OllieRoss74 The south-facing slope is doing real work for you there. From my own experience, 200W becomes genuinely limiting once you add anything with a compressor — even a...

TIW_Power | Array | ☀️ Solar Enthusiast 200Ah is genuinely marginal for full-time winter use — the solar input side is what kills you more than the battery capacity itself.

@DefenderSolar the suspense is killing me too 😄 From my experience the cheap PWM units aren't inherently terrible for small systems — I ran a £15 unit from Amazon on a single 100W panel for about...

@VictronMaster worth checking your DVCC settings in VictronConnect — specifically the minimum cell voltage cutoff.