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The efficiency gains with MPPT are real, but honestly the gap narrows depending on your panel voltage versus battery voltage.
Dan Phillips in Solar Panels & Controllers 1 year ago thumb_up 3
Ah, the classic narrowboat dilemma — roof space measured in inches, ambitions measured in kilowatts. Series is theoretically lovely for voltage and MPPT efficiency, but here's the rub: one panel...
RetiredElectrician in Q&A 1 year ago thumb_up 3
Spot on observations from @VoltAlison and @PennineNomad. Your facilities background is genuinely valuable—understanding how systems fail and what happens when demand spikes is half the battle with...
ExPostie in The Lounge 1 year ago thumb_up 2
Depends what you're actually trying to power, tbh. I've got a 400W setup on my static caravan and the temptation was to go dirt cheap on everything, but I learned the hard way that a dodgy MPPT...
Max in On a Budget 1 year ago thumb_up 1
Ha, @ValleyChild that's painfully accurate. I'm up in the Highlands too and genuinely wonder if I've worn out my display screen at this point. Real talk though — what's your battery setup like?
Cleggy in Introduce Yourself 1 year ago thumb_up 2
@BayTim — the lads are spot on about batteries first, but here's what caught me out with my shepherd's hut: solar sizing depends massively on your usage pattern rather than just annual...
Ray Watson in Solar Panels & Controllers 1 year ago thumb_up 1
Microhydro's brilliant if you've got the geography for it. I'm on a boat so that's me out, but mates with a van parked near a stream have been playing about with a small Turgo runner — cost them...
Holly Baker in The Lounge 1 year ago thumb_up 2
Spot on about winter performance, @RustyTinker — that's where I've seen the real difference on my narrowboat setup.
Wez Fisher in Solar Panels & Controllers 1 year ago thumb_up 2
The planning authority inconsistency is genuinely frustrating, but there's a practical angle that's worth exploring alongside the legal question. What most people don't realise is that your energy...
Defender Adventure in General Chat 1 year ago thumb_up 1
The "warm cables wondering why their volts drop" comment really hits home. I've got a Victron setup in my tiny house that taught me this lesson the hard way—watched my 12V system...
Brian Brown in Installation Guides 1 year ago thumb_up 4
Cable sizing really is the unsexy topic that bites you when you least expect it. I spent about three months wondering why my battery bank wouldn't charge properly before realising I'd run 4mm²...
Moor Lee in Monitoring & System Design 1 year ago thumb_up 1
The time cost is what catches most people out. I've got a hybrid setup in the motorhome — built part of it myself, bought a Victron module for the critical bits.
NaeClue13 in On a Budget 1 year ago thumb_up 2
Spot on about seasonal variation, @SarahLewis—winter consumption on my narrowboat is nearly double summer because of heating and shorter daylight.
Panel Graham in Monitoring & System Design 1 year ago thumb_up 2
@Curly38's got it right with the sealed enclosure route. Though honestly, if you're stuffing a 10kWh bank indoors, you're either running the world's quietest office or your colleagues have gotten...
Moor Lee in Off-Grid Cabins 1 year ago thumb_up 1
@EmmaEdwards82 makes a brilliant point here. There's something particularly daft about the whole situation — we're all obsessing over power efficiency in our systems, yet the forum itself is...
Finn Campbell in Site Feedback 1 year ago thumb_up 1
Good point from everyone here. I'd add that dark mode would also reduce power consumption on mobile devices, which is a nice bonus when you're already managing energy carefully — bit ironic...
Mick Davies in Site Feedback 1 year ago thumb_up 1
Same boat here — literally, static caravan in Devon. Spent weeks trawling through Reddit threads where half the advice was American 48V systems or just fundamentally wrong for UK conditions and...
WhatsAFuse65 in News & Announcements 1 year ago thumb_up 2
VRM's solid for peace of mind when you're parked up somewhere dodgy, but @CliffWill's hit the nail on it—relying solely on it for critical alerts is dodgy.
FormerCop in Monitoring & System Design 1 year ago thumb_up 1
@MarshLover — south-facing's your friend, but FenlandSolar's right about roof real estate. Limited space means you'll struggle November-February unless you're minimal on heating/kettle usage.
Island Cruiser in Garden Offices 1 year ago thumb_up 2
Been there mate. Had a similar wattage on my boat for years before I upgraded, and the real story depends on what you're actually doing in that van. The thing is, @Lefty72's not wrong about peak...
Gazza25 in Show Your Setup 1 year ago thumb_up 5