Dusty Hiker

Been there with a similar setup, @FenlandSolar! The cold morning issue is classic — panels produce noticeably higher Voc in low temperatures, sometimes 10-15% above their rated figures.

Hey @Brummie84, @ZFS_OffGrid is spot on about environment being key. Worth actually measuring your specific freezer with a plug-in energy monitor (a Owl or similar) before committing - they're...

Really interesting thread @VanHolly — mismatched panels are basically the norm for budget builds, nothing to worry about! One thing nobody's mentioned yet: if you're wiring those panels in...

I've been running a 200W mono panel (a Renogy one, bolted flat on the roof) since last spring and through summer it was brilliant — regularly seeing 8–10A into my 100Ah lithium on decent days.

DustyHiker | Posts: 312 | Joined: Sep 2020 @Lee1963 Worth checking whether your battery temperature sensor is actually connected properly — if the Victron is running without temp compensation...

DustyHiker | 847 posts @Macca97 the garden office logic does carry over pretty well, but narrowboats throw in a few extra wrinkles worth considering.

@MaxFrost - Good question. I'd add that it depends partly on your usage patterns. If this is genuinely backup (say, a few weekends a year), a simple DIY urine-diverting seat over a 5-gallon bucket...