200W Solar Panels: Output & What They Actually Power
The go-to size for campervans and off-grid setups — but what does 200W really deliver? Here’s the honest output, what it will and won’t run, and how many you need.
The short answer
A 200W solar panel is the popular go-to size for campervans, boats, sheds and off-grid setups — not for powering a home. Realistically it produces around 0.4–0.8kWh (400–800Wh) on a good UK day, far less in winter, because the “200W” is a peak lab rating, not a constant.
That’s enough to comfortably run a van or small off-grid setup’s essentials: a 12V compressor fridge, LED lights, phone/laptop charging, a water pump and fan, and topping up a leisure battery or power station. It won’t touch a kettle, oven or electric heater. If you’re here researching home solar, you actually want full-size roof panels (typically 400–450W each) wired into your mains — a different product entirely, covered in our panel sizes guide.
What this guide covers
200W is arguably the most popular size in portable and campervan solar — enough power to run a van’s essentials off a single panel, while still being manageable to mount on a roof or carry as a folding unit. Brands like Renogy, Bluetti, Anker and EcoFlow all build 200W panels as a core part of their range. This guide gives you the honest numbers — what 200W really produces once you strip away the marketing — and helps you work out how many you need for your setup.
Real-world output: forget the label
The single most important thing to understand: “200W” is a peak rating under perfect lab conditions (bright, direct, cool, panel angled ideally). Real-world UK output is a fraction of that × daylight hours:
| Conditions | Realistic daily output | What that means |
|---|---|---|
| Bright summer day | ~800–1,200Wh | Best case — runs a van easily |
| Average UK day | ~400–800Wh | Typical — plan around this |
| Dull / winter day | Under 200Wh | Minimal — size up or store |
A useful rule of thumb: expect roughly 4–6 times the panel’s wattage in watt-hours on a good day — so a 200W panel gives ~800–1,200Wh at best, dropping steeply in cloud and winter. Angle, shading, temperature and your charge controller’s efficiency all shave it further. Plan around the average, not the peak, and you won’t be caught short. This same peak-vs-real gap applies to full-size roof panels too — it’s just more noticeable when you’re relying on one or two portable panels.
What can a 200W solar panel actually run?
| ✓ A 200W panel handles | ✗ It cannot run |
|---|---|
| 12V compressor fridge (all day) | Kettle or electric heater |
| LED lighting | Oven, hob or microwave |
| Phone / tablet / laptop charging | Washing machine / dishwasher |
| Water pump & fan | Hairdryer, iron |
| Topping up a leisure battery / power station | Anything mains & high-wattage |
| Small TV / laptop for a few hours | A house (see below) |
The rule: 200W runs low-power 12V/DC devices and charges batteries — it doesn’t run high-power mains appliances. Anything that heats (kettles, heaters, ovens, hairdryers) draws far more than a 200W panel makes. The trick with portable solar is to use the panel to charge a battery or power station, then draw from that store when you need it — the battery handles bursts of demand the panel alone never could.
200W for a campervan: the popular choice
200W is the sweet spot for a lot of van builds, and it’s easy to see why. A typical campervan’s daily electrical needs — a 12V fridge (~360–500Wh/day), LED lights (~50Wh), device charging (~150Wh), a water pump and fan (~100Wh) — total roughly 700–800Wh a day, which a 200W panel covers comfortably from spring to autumn on average UK days, and easily in summer.
Where you might want more: full-time vanlife, winter travelling, or running bigger loads (a larger fridge, more devices, an inverter for occasional mains) push you toward 300–400W and a bigger battery. But for weekend and fair-weather van use, a single 200W panel plus a 100Ah+ leisure battery and an MPPT controller is a reliable, popular setup. Match it honestly to how and when you travel.
How many 200W panels do you need?
| Setup | Typical size | Runs |
|---|---|---|
| Campervan (3-season) | 200W (1 panel) | Fridge, lights, charging, pump |
| Bigger van / boat / year-round | 400W (2) | Fuller off-grid living |
| Shed / small cabin | 200–400W (1–2) | Lighting, tools, small fridge |
| Larger off-grid setup | 600W+ (3+) | Sustained off-grid use |
The method: add up the daily watt-hours (Wh) of everything you’ll run, then size panels to generate that on an average day — with margin for dull weather — and pair with a battery to store it. A van using ~750Wh/day is well matched to one 200W panel in the warmer months; add a second for winter reliability or heavier use. Always size the battery to match, so you can store a full day’s generation and ride out a cloudy day.
Rigid vs flexible vs folding: which type?
Rigid (framed glass)
Best value & durability · fixed mountingThe classic aluminium-framed glass panel — cheapest per watt, most durable, longest-lasting. Best for permanent mounting on a van roof, shed or boat where it can be bolted down. Heavier and rigid, so not for curved surfaces or carrying about, but the go-to for a fixed van-roof install.
Flexible (ETFE)
Thin & light · curves to a surfaceThin, lightweight ETFE-coated panels that flex to a curved surface — ideal for campervan and boat roofs where weight and shape matter, and they can be glued down without a frame. The trade-off: usually pricier and shorter-lived than rigid, and more prone to hotspot damage if shaded. Hugely popular for van roofs despite the premium.
Folding / portable
Carry handle & stand · temporary useFoldable 200W panels with a built-in stand and handle, designed to unpack, angle at the sun and pack away — perfect for camping and topping up a power station (Bluetti, Jackery, EcoFlow, Anker setups). The most convenient and the priciest per watt, but unbeatable for grab-and-go use and positioning toward the sun.
What else you need: battery & charge controller
A 200W panel rarely works alone. A functional small solar setup usually needs:
- A battery (leisure/LFP battery or a power station) — to store energy for when the sun isn’t shining and to handle demand bursts. For a 200W van setup, a 100Ah+ leisure battery is a common match.
- A charge controller (MPPT is more efficient than PWM) — regulates the panel’s output to charge the battery safely. Many power stations have this built in; DIY leisure-battery setups need one added, and at 200W the MPPT efficiency gain is well worth it.
- Cabling & connectors (usually MC4) — to wire it together. Panel “kits” often bundle these, which is why “200W solar panel kit” is such a common search.
Buying a 200W kit (panel, controller, cabling, sometimes brackets) is often simpler and cheaper than piecing it together — especially the campervan-specific kits that include everything for a van install.
“Is a 200W panel right for my house?” — the honest answer
If you landed here thinking about home solar, read this
200W panels are not for powering a house — and if that’s what you’re after, this is the wrong product, so let’s save you time. An average UK home uses 8–10kWh a day; a 200W panel makes perhaps 0.4–0.8kWh on a good day, so you’d need dozens, and they’re not designed to wire into your mains anyway. Home solar uses larger 400–450W panels roof-mounted and connected to your consumer unit — a completely different setup. If you want to cut your home electricity bills, you want a proper roof system: our 4kW and 5kW system guides show real home costs and savings, and the best panels guide covers the full-size brands. 200W panels are brilliant for vans, boats and camping — just not for the house.
200W solar panels: pros & cons
✓ Pros
- The popular, well-matched campervan size
- Runs a van’s essentials off a single panel
- Ideal for vans, boats, sheds, camping
- Flexible & folding options for any surface
- Kits bundle everything for an easy setup
- No installer needed — genuinely DIY
✗ Cons / limits
- Real output far below the “200W” label
- Runs 12V devices only — no mains appliances
- Useless for powering a house
- Winter output drops sharply
- Needs a battery & controller to be useful
- Portable/flexible types cost more per watt
Frequently asked questions
What can a 200W solar panel run?
A campervan or small off-grid setup’s essentials — a 12V fridge, LED lights, device charging, a water pump and fan, and topping up a leisure battery or power station. Not mains appliances like kettles, ovens or heaters, which need far more power.
How much does it produce per day?
Realistically ~400–800Wh on an average UK day (800–1,200Wh in bright summer, under 200Wh on a dull winter day) — not the full 200W × daylight, because 200W is a peak lab rating. Rule of thumb: ~4–6× the wattage in watt-hours on a good day.
Is 200W enough for a campervan?
For many vans, yes — it’s a popular size that comfortably covers a fridge, lights, charging and a pump, especially spring to autumn. Full-time or winter vanlife may want 300–400W and a bigger battery. Pair with a 100Ah+ leisure battery and MPPT controller.
Is a 200W panel enough for a house?
No — nowhere near. A home uses 8–10kWh a day; a 200W panel makes 0.4–0.8kWh on a good day. Houses need larger roof-mounted panels wired to the mains. 200W panels are for portable and off-grid use — see our home system guides instead.
How many do I need?
Depends on your load: 200W (one panel) for a 3-season campervan, 400W for a bigger van or boat or year-round use, 200–400W for a shed, 600W+ for larger off-grid. Add up your daily watt-hours and size panels plus a battery to cover them with margin.
Rigid, flexible or folding?
Rigid (framed glass) is cheapest and most durable for fixed mounting; flexible (ETFE) is thin and light for curved van roofs but pricier; folding/portable has a stand and handle for camping and power-station top-ups, most convenient but dearest per watt.
The verdict
The 200W solar panel is a brilliant, versatile bit of kit for what it’s actually for: portable and off-grid power, and especially campervans — where a single 200W panel covers the essentials beautifully for three-season use. Buy the right type for the job (rigid for a fixed van roof, flexible for curved roofs, folding for grab-and-go), pair it with a decent battery and an MPPT controller, and plan around its real output of ~400–800Wh a day rather than the optimistic label, and it’ll serve you well.
Just be clear on what it isn’t: it’s not home solar, and it won’t run mains appliances or power a house. If cutting your home electricity bills is the goal, you want a full roof system — different product, different scale. But for life off the mains, 200W panels are hard to beat.
Important
Going Solar UK provides free information and, for home solar, connects homeowners with MCS-certified installers. We don’t sell portable or 200W solar panels or accessories. Output figures, runtimes and sizing here are indicative estimates and vary widely by product, conditions, angle, battery and location — always check the specific product’s specs and reviews before buying. Portable solar is typically bought direct from retailers rather than through an installer.