Shore power hookup — do I still need it?

Looking at upgrading my van setup and trying to work out if shore power is still a necessity or if I can go fully independent.

Currently running a 400W solar array with 200Ah LiFePO₄ (Victron LiFePO₄ Smart), and a 3000W Victron Multiplus inverter. Battery's been brilliant through summer, but I'm finding winter output drops to about 60-70W on grey days — hardly worth mentioning.

The thing is, I'm based in the South West and spend most winters stationary on the same site. I work from a small garden office in the van, so I need reliable power for laptop, monitors, and heating. Right now I've got a 2kW air source heat pump for winter, which absolutely hammers the battery when running.

My question: for someone with my power profile, is shore power still essential, or should I be looking at a diesel heater and optimising my battery capacity instead? The shore power hookup costs roughly £200-300 per winter for the site fees, but it's the convenience factor that's really useful — no monitoring levels obsessively, no worrying about cloudy spells.

I've seen some people online go full off-grid in the UK, but they seem to either have massive solar arrays (8-10kW+) or are seriously minimalist with their usage. Neither applies to me.

What's everyone else's experience? Has anyone ditched shore power and not regretted it? Or is that £200 a season reasonable insurance against winter reliability issues?

Depends entirely on your usage pattern, mate. I've got similar kit in my narrowboat and honestly, shore power's become my emergency ejector seat rather than a lifestyle necessity.

400W solar with 200Ah is decent if you're disciplined about consumption — but winter in Essex is grim. Those grey November weeks will humble you quick. Shore power kept me sane when the panels were producing sod all.

The real question: can you afford to be without it if things go sideways? Battery management in a van is ruthless — one wet week, one dodgy MPPT reading, and you're rationing everything including hot water.

I'd keep the option there. Modern shore hookups aren't expensive to maintain, just means staying at campsites occasionally rather than wild camping permanently. Best of both worlds.

Depends heavily on your specific loads and climate honestly. I'm running a similar 400W array with 200Ah LiFePO₄ on my narrowboat, and I still keep shore power as backup—mainly for winter when solar output drops to about 30% of summer figures.

The maths: if you're pulling 2kW for heating or running a kettle regularly, that 400W won't cut it during December/January. You'd be drawing down your battery constantly. Shore power (or a quality generator) becomes essential insurance rather than luxury.

That said, if you're genuinely minimalist—just lighting, fridge, modest cooking—you might genuinely eliminate it. But factor in bad weather periods. I found I was using shore hookups roughly 3-4 months annually before I upgraded to 800W.

What's your typical daily consumption? That's the real question mark here.

Honestly depends on your heating setup more than anything. I'm running 400W solar with 200Ah LiFePO₄ in my van conversion and the solar absolutely tanks during winter months — we're talking 50-100W real output on a grey day.

If you're using resistive heating (fan heater, immersion), shore power becomes essential November through February unless you're prepared to sit in the cold. Heat pump setup changes the equation entirely though — draws less and performs better in cooler temps.

What are your winter plans? Are you stationary or moving around? That's the real question. I've ditched shore hookup for summer touring but keep it as backup through winter. Seems like a waste to strip the capability out entirely when you might regret it.

The cut-off replies are a bit samey, but they're right about usage patterns being key. Worth asking yourself: what's your winter heating plan? That's usually the deciding factor.

I've got 400W solar with 200Ah LiFePO₄ on my static caravan setup, and I ditched shore power last year. Works fine through summer and shoulder seasons, but November through February I'd be struggling without either a backup generator or accepting reduced comfort.

If you're running immersion heating or an electric heater for winter, shore power becomes pretty essential unless you're willing to add another 400W+ of panels and seriously upgrade battery capacity — cost-benefit gets dodgy quickly.

For cooker, hot water (gas), lights, and fridge? You're probably fine year-round. For maintaining indoor temperature in a UK winter without gas heating? You'll almost certainly need either shore power or a gennie as backup.

What's your heating setup at the moment? That'll determine whether you're actually looking at independence or just reducing how often you need hookups.

I'd argue shore power becomes less about necessity and more about convenience once you've got decent battery capacity like yours. I ditched mine last year on my narrowboat and haven't looked back—though I'll be honest, it took proper planning.

The real question is when you're using the van. Winter camping with heating running 24/7? Shore power wins. Summer pottering about with just fridges and laptops? Easily doable on 400W + 200Ah if you're sensible about it.

What tipped it for me was realising I was mostly stationary during peak solar hours anyway. I upgraded my array to 600W (curved Renogy panels fit better on narrowboats than vans, but you get the idea) and added a DC heater for shoulder seasons rather than relying on electric heating.

The charging setup matters too—what charger have you got if you do want to top up from shore? A 3kW Victron can restore a depleted battery in an afternoon, which changes the calculus entirely. Makes shore power more of a "nice to have" backup than essential infrastructure.

Real talk though: keep the

@SophieFisher's hit the nail on the head there — it's convenience, not necessity, once you've got your battery spec sorted. Your 200Ah LiFePO₄ with 400W solar is genuinely decent for most three-season van life.

The real question is winter heating. Electric heaters will absolutely demolish your batteries in January, so if you're relying on a diesel heater or wood burner you're golden. If you're planning to use resistive heating or a heat pump, shore power becomes your mate again.

I ditched shore dependence entirely with similar capacity — it's liberating but requires honest assessment of your actual usage. Laptop charging, fridge, lights? No bother. Running a shower heater or air con in summer? That's when you'll miss those shore terminals.

Worth setting up a proper monitoring system (Victron GX bit) so you can actually see what's draining you rather than guessing. Takes the romance out of it, but prevents the 3am panic when the batteries die.

The real question is: what's your actual winter usage like? 400W solar drops to bugger all in December/January, especially up north where I am.

I've got a similar setup on my narrowboat — 300W panels, 200Ah LiFePO₄ — and I'll be honest, winter shorepower would be brilliant but I manage without it by being strict about consumption. Gas heating helps massively (you running gas or relying on electric?).

If you're stationary for weeks at a time in winter, shore power starts looking less optional and more essential, particularly if you're doing anything beyond minimal usage. If you're moving regularly or only doing summer touring, you're golden as you are.

The battery capacity you've got is decent, but it's only half the equation — the other half is what you're actually pulling from it daily. Check your kWh usage pattern over a full month, see where you sit.

@PennineNomad's spot on about winter — that's where shore power earns its keep. I've got a similar setup in my static caravan and genuinely noticed the difference once the clocks went back.

400W is decent for summer touring, but come November you're looking at maybe 100-150W on a decent day. Your 200Ah LiFePO₄ will drain faster than it charges, especially if you're running heating or a kettle regularly.

That said, you don't need it if you're willing to shift your usage patterns — shorter showers, strategic charging runs, that sort of thing. But if you want to actually live comfortably rather than just survive, shore power takes the stress out.

The flip side: if you're mostly UK-based and can access a hookup, keep the option open. The hardware's cheap relative to the peace of mind. Just don't feel obligated to use it if you're stationary somewhere sunny for a week.

What's your typical winter routine like? That'll make the decision clearer than spec sheets ever will.

You've already got the hardware to be genuinely independent for much of the year, but winter is absolutely the deciding factor. 400W in December is realistic at maybe 40-60W on grey days — that's barely topping up a 200Ah bank if you're drawing 1.5-2kW daily for heating, water heating, cooking.

I run a similar spec on my narrowboat and honestly, shore power during November through February is the difference between comfortable living and constant battery anxiety. You'll be constantly throttling loads, managing consumption obsessively, and still likely running a petrol generator anyway.

The pragmatic approach? Keep the option open. A shoreside socket or campsite hook-up costs nothing to have available — you're not forced to use it. But trying to run a winter van purely on 400W solar is fighting thermodynamics. You'd need either:

• Double your solar (space permitting)
• Add a proper diesel heater (Webasto, Eberspacher) instead of relying on electric heating
• Accept generator use as backup

Most people find shore power gives them freedom rather than limiting it — you get the independence option

Have you actually tracked your daily consumption over a full year? That's the bit everyone skips and then gets caught out.

I'm asking because I've got a similar spec on my narrowboat — 400W array and LiFePO₄ — and what looked fine in summer was genuinely sketchy November through February. You're not just losing generation hours in winter, you're also running higher loads (heating, longer lights-on periods).

The thing is, shore power doesn't have to be all-or-nothing. Could you do a hybrid approach instead? Keep the hookup capability but only use it when the battery hits a certain threshold on cloudy spells. Saves on the annual fees if you're not relying on it constantly.

What's your actual winter location like? If you're stationary somewhere with decent hookup infrastructure, might be worth keeping the option. If you're genuinely trying to wild camp year-round, honestly, 400W + 200Ah gets tight without some backup charging — either shore power, a small petrol generator, or rethinking your consumption.

What's your heating setup like? That's usually the real wildcard in winter.

I've got a similar solar capacity with batteries in my garden office setup, and I realised pretty quickly that my consumption profile is completely different in December versus July. The solar barely keeps pace with my lithium's self-discharge rate, let alone actual loads.

If you're relying on electric heating (fan heater, heat pump, whatever), shore power becomes less of a luxury and more of a necessity unless you're planning to shift your usage habits dramatically. Even with a modest 2kW heater running a few hours daily, that's going to drain your 200Ah faster than your 400W array can replenish in shorter winter days.

Have you calculated your actual daily draw? @BurnWalker's right — that's the conversation you need to have with yourself first. I'd suggest logging a full fortnight in January before making any decisions about dropping shore power entirely.

What's your typical daily consumption looking like at the moment?

Mate, you've got the battery capacity sorted but 400W solar in UK winter is like bringing a torch to a power cut—technically light, just not useful light. Shore power becomes less "nice to have" and more "sanity preservation" November through February unless you're genuinely minimalist.

The real question @BurnAlley raises is consumption tracking—most people guess wrong by about 40%. Chuck a Victron BMV-712 on there and actually know what you're pulling for a month before you bin off the shore hookup entirely.

That said, if you're in a van conversion (not a full-timer caravan), shore power is dead weight. Pop the kettle on a sunny day, charge when you need to, move on. The 200Ah LiFePO₄ gives you enough buffer that you're genuinely independent most of the year.

What's your actual daily consumption sitting at?

Honestly, depends on your usage patterns. I've got a static caravan setup and still use shore when parked up long-term—convenience more than necessity at that point. For a van though, 400W winter solar is tight if you're running heating or water heating. Track your actual usage first like @BurnWalker said, then you'll know what you're missing.

Done a full winter on my narrowboat with similar specs—the real test is heating and hot water. Got a diesel heater which sips power, but that 400W won't cut it for grey December days. Shore power's brilliant for topping up when stationary, but if you're moving regularly, a small wind turbine made more difference than I expected. Worth considering hybrid rather than either/or.