Can I run a washing machine on solar?

The inrush thing is real, but @ExFirefighter's onto something with delay start — that's genuinely what made it work for me in the motorhome.

Here's the practical bit: most modern washing machines pull 16-20A running, but that initial surge when the motor kicks in can hit 40-60A for a few seconds. With 6kW nominal solar you've got the generation sorted, but the battery needs to handle that spike without voltage sagging below what your inverter can manage.

What actually changed things for me was accepting the compromise: I run mine mid-morning when the sun's properly up and the battery's topped out. A 10kWh LiFePO4 bank (I'm running Victron LiFePO4 Smart) handles the inrush without drama, and the solar immediately starts recharging during the cycle.

The machine itself matters too — avoid the cheapest ones. Front-loaders are kinder than top-loaders. Look for eco modes that use less water and lower temperatures (less heating = less power spike).

Timing is everything though. Winter? You'll struggle unless you've got a genuinely massive battery. Summer with your 6kW array? Totally doable with 8-10kWh usable capacity.

What's your current battery size looking like?

Right, so the real question nobody's asking: which washing machine? Because trying to run a 2400W inrush monster on solar is like expecting a garden office to power a Tesla — technically possible if you've got the battery the size of a shed.

@ExFirefighter's delay start thing is genuinely your mate here. Most modern machines have it built in

@DodgyRoamer — had the same dream, reality smacked me in the face. Even with your 6kW nominal, you're fighting the inrush spike when the motor kicks in, which'll trip your Victron faster than you can say "solar gain."

The delay start crowd are spot on, but here's what actually moved the needle for me: a decent soft starter unit (around £80-120) smooths out that brutal current draw. Paired it with a modest 10kWh LiFePO4 bank and suddenly the whole thing stops being theatre.

Real talk though — if you've got mains hookup to your garden office, just use that. Life's too short to watch your inverter panic-restart every wash cycle. Solar's brilliant for what it's brilliant at; washing machines aren't in that column unless you're prepared to treat it as a mini-project rather than "set and forget."

What's your battery situation looking like currently?

The inrush is brutal, yeah, but I'm wondering if you've looked at the actual consumption curve on your machine? Mine's a compact Bosch (1200W rated) and the initial surge is maybe 3-4 seconds, then it drops to around 800W for the rest of the cycle.

What's your actual battery capacity though? That's where I reckon the math gets interesting. I'm running a modest 5kWh LiFePO4 setup with 6kW solar, and I can absolutely do a wash cycle midday when there's decent cloud cover — the key is timing it when generation's peaked and battery's topped up.

The delay start suggestion @LiFePO4Nerd mentioned is spot on, but equally, if you're looking at a full-size machine with 2400W+ inrush like @BoxerProject flagged, you'd probably need either a decent inverter with soft-start capability or genuinely accept you're running it when solar's smashing it.

What's your current battery spec and inverter rating? That'll tell you whether it's actually doable or if you need to compromise on

Have you actually measured what your garden office can handle at peak draw? That's where I'd start before entertaining any washing machine dreams.

The inrush thing @BoxerProject and @RiverFinn mention is real, but equally important — what's your inverter rated for? A 6kW nominal solar array doesn't mean much if you've only got a 3kW inverter (which is common in tiny setups). Most washing machines want 2-3kW continuous, sometimes spiking higher during spin cycles.

What I'd genuinely explore instead: could you relocate laundry duty to when your battery's genuinely topped up? Morning wash after a sunny day, that sort of thing. Or honestly, a smaller compact machine designed for caravans/boats might actually work — they're engineered for power-limited situations.

What inverter and battery capacity have you got currently? That's the limiting factor nobody asks about before buying the solar panels. Victron's sizing tools are worth a look if you haven't already.

Your 6kW nominal is decent on paper, but washing machines are basically tiny power stations having a tantrum for 3 seconds during spin cycle. You're looking at 4-5kW inrush minimum, which means your battery bank needs to be beefy enough to handle that spike without voltage sag, otherwise your inverter will just give up and have a lie down.

I run a 3kW system in my van with a Victron MPPT and honestly, I wouldn't dream of it. Garden office is different though — if you've got space for a proper battery setup (we're talking 10kWh+), a 1200rpm machine on eco wash might just scrape by. The trick is doing smaller loads and timing it for peak solar hours.

Real talk: get a compact 5kg machine rated for caravan use instead. They're designed for this nonsense. Or go the petrol generator route and accept you're basically cheating the off-grid dream, which I'm absolutely not judging because I do it monthly.

What's your current battery capacity looking like?

Running one on solar is doable but depends on your actual setup details. 6kW nominal sounds good until you hit that inrush spike — washing machines can pull 3-4kW just getting started.

What @T5Project said about the tantrum is spot on. The real question is: what's your battery capacity and inverter rating? A decent-sized LiFePO₄ bank (8-10kWh minimum) with a 5kW+ inverter handles it fine. I've got a smaller setup on the boat and learned the hard way that nominal solar doesn't equal available power at the moment you need it.

Timing matters too. If you're running it mid-morning or early afternoon on a clear day, you can actually use most of the incoming solar rather than drawing heavily from batteries. That's the sweet spot.

What machine are you looking at? Some are much more forgiving than others. Also worth checking: does your garden office have dedicated circuits and a decent earthing setup? Last thing you want is nuisance tripping mid-wash.

The inrush is the killer, yeah. Got a 7kg Indesit in the motorhome and it pulls about 3.5kW steady but spikes to 6-7kW on startup. Your 6kW nominal won't cut it unless you've got a seriously beefy inverter and battery to handle that surge.

What worked for me was adding a soft starter module — cost about £80 and smooths out that initial kick. Means I can run it off smaller loads without the inverter screaming at me. Alternatively, if you're not fussed about fast cycles, some older/budget machines have lower inrush because they don't have fancy electronics.

Battery matters too. 6kWh minimum I'd say, ideally 10+ if you're doing this regularly and want headroom for other stuff running simultaneously. Otherwise you're stuck timing washes for peak sun or grid charging.

What's your actual battery capacity at the moment?

The inrush spike is honestly the real problem here. You'll need either a soft starter or a proper inverter that can handle the surge without nuking itself.

I've got a similar setup with the shepherd's hut and ran into this exact issue. Even with decent solar, those heating elements firing up are brutal. What saved me was swapping to a smaller capacity machine (5kg instead of 7kg) and only running it mid-afternoon when the panels are pumping. Paired it with a Victron Multiplus that's got enough headroom for the spike.

If you're relying on battery, you'll want more capacity than you'd think just from the wattage figures. A 10kWh battery sounds overkill for a washing machine until you realise it's burning through 3.5kW for 45 minutes and you've got zero sun left for the day.

What's your actual battery setup? That'll make or break whether this works. Also worth checking if your inverter spec even allows motor loads — some cheaper ones will just trip immediately.

Yep, inrush is brutal. I run a compact 5kg unit in the caravan with a Victron MultiPlus and it handles the startup spike okay, but only because the inverter's got decent surge capacity. Your 6kW solar sounds decent but what's your battery size? That's what'll actually matter when clouds roll in mid-cycle.

Inrush is definitely the headache. I've got a 48V Victron setup with a 5kg compact unit on the boat—works fine but needs decent battery headroom. The trick is running it when batteries are near full, not at 30%. Soft starters help but honestly a smaller machine (3-4kg) would give you way more flexibility with your solar.

Mate, @ZFS_OffGrid's got the right idea with that compact unit. Honestly though, if your garden office budget stretches to a soft starter module, it's a game-changer—transforms that inrush spike from "angry dragon" to "manageable". Otherwise you're just throwing battery capacity at the problem. What's your inverter spec currently?

Mate, the inrush spike is your enemy—most washers pull 3-4kW at startup. Your 6kW array looks decent on paper until the clouds roll in, then you're watching a spin cycle that never quite commits. Go compact (5kg max), soft-start it with a Victron MultiPlus, and honestly consider if hand-wringing isn't cheaper than the battery bank you'll actually need.

The real issue you're facing is battery capacity during spin cycles—they're energy dense but short duration. With 6kW nominal you'd need decent battery headroom to avoid voltage sag triggering inverter protection. I'd suggest minimum 10kWh usable on a 48V system. Alternatively, time washes for peak solar hours and accept you'll need grid backup or a generator for reliability. What's your current battery spec?

Have you looked at those compact 3-5kg portable washers? They're less brutal on inrush current than full-size machines. The real question is your battery bank size—what capacity are you working with? Even with 6kW solar, you'd struggle without at least 10-15kWh usable. Worth checking if a laundry service nearby might be more practical for your setup?