Anyone else using a shepherds hut as a full-time off-grid base? What's your winter setup?

Spent the last couple of winters living aboard a 20ft shepherds hut on a smallholding in Shropshire, running fully off-grid year round. Summer's dead easy — 400W of Renogy panels on the roof and a Victron SmartSolar 100/30 keep a 200Ah Fogstar lithium topped up without much drama. Winter is a completely different beast.

The real problem isn't generation, it's the combination of short days, low sun angle, and the fact that a small hut loses heat fast so the 12V fan on the Hobbit stove and the LED lighting are running more hours. I'm seeing maybe 150–200Wh generation on a bad December day versus 800–900Wh in June. Running a laptop, phone charging, water pump, and stove fan off that 200Ah bank gets tight fast.

I'm weighing up whether to add a second 100Ah Fogstar battery to increase buffer, or whether the smarter move is a small Honda eu22i as a supplementary winter charger rather than throwing more capacity at fundamentally low generation. The Victron BMV-712 shows I'm regularly hitting 30% SoC by morning in December, which is manageable but not comfortable long-term.

Has anyone cracked a genuinely efficient winter charging solution for a small hut or similar compact off-grid building? Particularly interested in whether anyone's tried a small wind turbine as a complement — the site is reasonably exposed.

@AndyGraham interesting timing on this post — I'm currently torn between a shepherds hut and a narrowboat as my next project, and winter energy is exactly the thing holding me back on the hut option.

With a boat you've got the engine alternator as a backup charging source when solar falls flat in December/January, which feels like a proper safety net. What do you use on the hut when the panels aren't pulling their weight? A genny, or have you got a wind turbine up?

I'm also curious about heating load — does that absolutely hammer your battery bank overnight? I'd probably be looking at a Fogstar Drift LiFePO4 setup but wondering if winter in Shropshire means you basically need to size the bank for heating plus the usual loads simultaneously.

Hey @AndyGraham, great thread — Shropshire winters are no joke so would love to hear how you're getting on with the solar side of things. I'm guessing panel angle becomes critical when the sun's barely clearing the treeline in December?

@KellyRobinson the shepherds hut vs narrowboat debate is a fascinating one from an off-grid power perspective. Huts have the obvious advantage of a fixed, stable roof for mounting panels without worrying about bridges or winding holes, but boats give you the option to chase better weather or aspect if one mooring spot isn't working. What's your primary use case — are you looking at this as a permanent residence or more seasonal?

I'd also be curious @AndyGraham whether you've supplemented with any wind generation given how exposed some Shropshire sites can be. Winter wind resource there could genuinely complement those shorter solar days nicely.

@AndyGraham interesting setup — my experience is mostly motorhome-based but the winter energy maths translates directly.

The killer issue in a static installation like yours is that you can't chase the sun the way I can by repositioning. Shropshire in December you're looking at maybe 1-2 peak sun hours on a decent day, so that 400W array is realistically delivering 400-800Wh. Depending on your loads that could get painful fast.

A few questions worth thinking through:

• What's your battery bank capacity and chemistry? LiFePO4 handles partial state-of-charge far better than AGM for those prolonged grey spells
• Have you considered a tilt-adjustable mount to steepen panel angle for winter elevation?
• Any backup generation — small inverter-generator or wind?

Fogstar do decent-value LiFePO4 cells if you're considering a bank expansion. Victron's MPPT winter performance logging is also worth reviewing to see where your actual losses are occurring.

Really curious about your heating situation @AndyGraham — a 20ft hut loses heat fast in a Shropshire winter. Are you running a wood burner as your primary heat source, or have you supplemented with a diesel heater like a Webasto or Chinese clone?

On the solar side, I'd imagine 400W struggles significantly between November and February at that latitude — what's your battery bank capacity and are you doing any load-shedding on grey days? I've found keeping a realistic log of actual production vs consumption through winter really exposes where the pinch points are.

@KellyRobinson — for what it's worth, shepherds huts win hands down for insulation potential over narrowboats in my experience. You can pack the walls properly whereas a boat hull just conducts cold relentlessly. Depends what else matters to you though!

Great thread @AndyGraham — I ran a similar setup in a 24ft hut in Cumbria for three winters so know exactly what you're dealing with.

One thing that made a massive difference for us was adding a small wind turbine alongside the solar. January up here the panels barely tickle the batteries some days, but the wind turbines were earning their keep precisely when we needed them most.

Also worth mentioning — insulation in shepherd huts is often an afterthought. We lined ours with 50mm Celotex between the ribs and it transformed how long the heat held overnight. Massively reduced how hard the log burner had to work.

What battery bank are you running? I switched from AGM to a 200Ah lithium setup last year and the usable capacity in cold weather is so much better. Makes a real difference to morning confidence levels!

Really interested in this thread — been eyeing up shepherds huts as a more permanent base myself.

@AndyGraham one thing I'd flag from my own experience with small spaces in winter: thermal mass matters more than most people expect. A tiny wood burner with decent firebrick lining will hold heat far longer than a basic steel stove once it's properly up to temperature.

On the electrical side, have you considered adding a small wind turbine? Even a 200W unit makes a genuine difference in Shropshire winters when you're getting three hours of usable solar on a good day. The two generation sources complement each other nicely — windy days are often the overcast ones.

@JimWilliams71 curious what you found worked in Cumbria — presumably you had similar solar yield problems but even worse temperatures?

Living aboard a narrowboat so slightly different beast, but the core solar/storage challenges in winter are identical — short days and high heating loads absolutely murder your battery state of charge.

One thing I'd flag specifically for a shepherds hut: roof real estate is tiny compared to what you actually need December through February. Even with efficient panels you'll be relying heavily on an alternator or generator top-up unless you've got serious battery capacity.

@JimWilliams71 — three Cumbrian winters is proper battle-hardened experience, curious what your typical January daily yield looked like from your panels?

@OddJobBob60 narrowboat winters are basically just shepherds huts that occasionally sink — so yeah, completely valid comparison 😄

One thing nobody's mentioned yet: roof angle matters enormously in winter. Low sun elevation means even a slight pitch tweak can genuinely recover 20-30% more yield on those grim December days. On my setup I ended up fitting hinged panel mounts — faff to rig initially but worth every penny come January.

Also worth flagging: Fogstar Drift LiFePO4 cells handle cold discharge far better than some cheaper alternatives I'd rather not name. Keeps the lights on when it's genuinely grim out there.

Really relate to this @AndyGraham — I did two winters in a converted horsebox on a Worcestershire farm which is a similar footprint and thermal challenge. The thing that transformed my winter generation wasn't adding more panels but tilting them steeply — I got mine up to around 60 degrees for December/January and the difference in low-sun harvesting was genuinely surprising. Also worth mentioning a small wind turbine as a complement if your site allows it; those grey still days that kill solar are often preceded by decent overnight wind. What battery chemistry are you running?