Last updated: March 2026
Last summer, I came across a couple at a lakeside campsite. They had a brand-new portable power station, a solar panel laid flat on the grass, and an expression of utter defeat. The station was showing 12 W of solar charge. In the middle of August. With a 200 W panel.
The panel was in the shade of a tree. And lying flat instead of angled toward the sun.
We spent ten minutes together. I repositioned the panel, adjusted the angle using a cool box as a prop, and cleared the shade from an overhanging branch. Production jumped to 145 W. Their weekend was saved, and so was their fridge. But it reminded me of something: nobody explains the basics. You get sold a "plug and play" kit and left to figure it out. The box contains a panel, a cable, and a four-page instruction manual that tells you how to connect but never how to optimise.
This guide is the one I wish someone had given me before my first solar camping trip in 2022. No unnecessary jargon, no abstract theory about semiconductors. Just what you need to know so it works first time and you do not go home thinking solar is a con.
If you first want to understand how many watts you need for your setup, that will help you target better. Forget the extreme configurations with 3,000 Wh and four 400 W panels you see on YouTube. Those people live in their van full-time and power a fridge, a gaming PC, and an air conditioner. That is not camping -- it is a flat on wheels.
For actual camping -- with a tent or a small van, for a weekend or a week -- your needs are probably much more modest than you think.
Ask yourself: what are you actually going to plug in? Probably your phone (20 W for two hours), an LED lamp in the evening ( for four hours), maybe a 12V mini-fridge to keep the beers and meat cold ( average with compressor cycling), a USB fan on hot nights (). Possibly a laptop if you are doing some remote work. That is maximum simultaneously, and over a full day it comes to about depending on whether you have a fridge.
10 W45 W5 W80 W400 to 600 WhFor a standard camping weekend, a 500 Wh to 1,000 Wh station with a 100 W to 200 W panel covers 95% of cases. No need for more. Seriously. I camped for three weeks last September with a Bluetti AC180 (1,152 Wh) and a single 200 W panel. Fridge running 24/7, phones charged, light in the evening, even a small projector for an outdoor film one Saturday night. Never dropped below 40% battery. The solar panel compensated the daytime consumption and built up reserves for the night.
Weight, first. It is the criterion everyone underestimates at the point of purchase and regrets at the point of carrying the thing from the car boot to the pitch, across 200 metres of dirt track. If you are carrying your station by hand, 5 kg is fine, 10 kg you notice, 15 kg is wearing after a while, 25 kg and you are not touching it once it is down. For mobile camping where you change pitches regularly, aim for the 5-12 kg bracket. Beyond that, it is campervan equipment that stays put, not touring gear.
Power output, next. That is the number of watts the station can deliver continuously. For camping, 600 W is enough in 90% of situations. It runs a mini-fridge, a fan, lights, and all the USB chargers you want without breaking a sweat. 1,000 W additionally gives you access to a small blender for morning smoothies, an electric blanket for cool autumn nights, a small travel toaster. Above 1,500 W, you are oversizing for pure camping -- you are paying for power you will not use and carrying weight for nothing.
Capacity in Wh, finally. That is your energy tank -- the total amount you can consume before the battery is flat. 500 Wh lasts a day with light use (no fridge). 1,000 Wh gives you two comfortable days with a fridge or one intensive day with lots of devices. With a solar panel putting energy back during the sunny hours (use our autonomy calculator to estimate), 500 Wh can last indefinitely if your daily solar budget offsets your overnight consumption. That is the beauty of solar: your station never empties if the panel is doing its job.
A 100 W panel is the minimum viable option for camping. In real-world conditions (not the manufacturer lab conditions with perfect sun and 25 degrees), expect 60-75 W of effective output in full summer sun when properly oriented. That is enough to offset the consumption of a phone, a lamp, and a small fan. But it will not recharge a 24/7 mini-fridge -- the fridge consumes more than the panel produces over 24 hours.
The 200 W is the camping sweet spot. My preferred format, the one I take on every trip. You produce 130-160 W in real summer conditions, which is enough to power most camping configurations while gradually recharging the station. One panel, easy to carry folded in the boot, productive enough to achieve full autonomy in southern Europe in summer. In spring/autumn or further north, you will not be fully autonomous, but the panel significantly extends your station range.
400 W is for stationary campervan owners or campers who want to run a full-size fridge and recharge fast. Output is enormous -- 300 W+ in full sun. But it is bulky. Heavy (14-16 kg). A nightmare to set up alone in wind because the surface acts like a sail. And it takes up a huge amount of boot space. For touring camping, it is overkill and a handicap. Reserve the 400 W for fixed or semi-permanent installations.
Rigid or foldable? My portable solar panel guide covers everything. For camping, go foldable without hesitation. It is pricier per watt produced, but it stores in a bag or flat in the boot, stands up with a built-in kickstand, and angles easily by leaning against any support. Rigid panels are cheaper per watt and marginally more efficient, but good luck fitting them in a car boot already full of tent, sleeping bags, cool box, and barbecue gear.
If I were starting from scratch today with a reasonable budget for camping, here is what I would buy depending on what is available.
Tight budget (£250-340): a Bluetti EB3A (268 Wh, 600 W) and a generic 100 W MC4 panel (something like ALLPOWERS or Renogy, around £85-110). That is the bare minimum for light camping: phones charged, LED lamps in the evening, small USB fan, Bluetooth speaker for atmosphere. No fridge -- a traditional cool box with ice packs is your only option in this budget. But for a relaxed weekend without pretension, it does the job. The EB3A weighs 4.6 kg; you carry it one-handed.
Comfort budget (£500-770): a Jackery Explorer 600 Plus (632 Wh, 800 W, 7.3 kg) with a matching SolarSaga 100 panel, or an EcoFlow RIVER 3 -- if you are torn between brands, also check our campervan station picks (245 Wh, 600 W, 3.5 kg) if you prioritise ultra-light and do not have a fridge. A same-brand panel + station combo simplifies everything: compatible connectors out of the box, cable included, no fiddling. With 600-800 Wh and 100 W of solar, you manage a 12V mini-fridge in summer (the panel offsets the fridge draw during the day) and all the chargers you want.
Generous budget (£770-1,200): a Bluetti AC180 (1,152 Wh, 1,800 W, 16 kg) with a Bluetti PV200 panel. Now you are king of the campsite. Filter coffee in the morning (yes, even a 1,000 W machine runs without issue), fridge 24/7 without stress, laptop for working if needed, LED fairy lights in the evening for atmosphere. The 1,800 W output even lets you plug in a small resistive appliance in an emergency, like an 800 W mini fan heater for a cold mountain night. And the 1,152 Wh capacity with 200 W solar backup makes you practically autonomous for a full week. The only downside: 16 kg is heavy to carry. But for the comfort it brings, I accept the effort.
You arrive at the campsite. You pull the panel out of the boot. And everything hinges on the next five minutes of setup. The difference between a well-positioned panel and a poorly positioned one is often 50 to 70% less production. That is enormous.
Orientation. The panel must face south (in the UK and the entire Northern Hemisphere). Not south-east, not south-west, not "roughly south". Due south. If you do not have a compass, use the compass app on your phone. Or simpler still: at solar noon (around 1pm in British Summer Time), the sun is due south. Point your panel at it then and leave the orientation alone.
Tilt angle. This is the second critical factor that everyone ignores. A panel lying flat on the ground loses 30 to 40% of output compared to the same panel correctly tilted. In summer in the UK, the ideal angle is about 30 to 35 degrees from the ground -- roughly, the panel is slightly raised, like an open book propped on its spine. Most foldable panels have an adjustable kickstand designed for this. Use it. If yours lacks a kickstand, lean it against your cool box, your rucksack, a flat rock, your car tyre -- anything that gives it the right angle. Thirty seconds of effort, 30 to 40% more output. The best return on investment of your day.
Shade. This is the silent killer of solar production. And it is counterintuitive. Partial shade on a panel does not reduce output proportionally to the shaded area -- it can divide it by four or five. The shadow of a thin branch crossing the middle of the panel is enough to drop output by 50% or more, because cells are wired in series: one cell in shade becomes a bottleneck for all the others. Check the sun path over your day before positioning the panel. That perfect spot at 10am might be in the shade of a tree at 2pm, right when the sun is strongest and production should be at its peak.
Heat. Another counterintuitive one: solar panels lose efficiency as they heat up. A panel whose cells are at 70 degrees in the August heat produces 10 to 15% less than the same panel at 25 degrees. It is the physics of silicon; there is not much you can do about it. But if possible, leave a few centimetres of air gap behind the panel for natural ventilation. Do not press it against a dark surface (tarmac, black wall) that stores heat and transfers it to the panel. A panel slightly propped up on stones with air circulating underneath will produce a touch more than one flat on the ground.
Manufacturers quote production under STC (Standard Test Conditions): 1,000 W/m2 of irradiance, 25 degrees cell temperature, perfectly perpendicular incidence. Basically, lab conditions you never encounter while camping.
In real camping conditions, in summer in southern England or Wales, a 200 W panel well oriented and well tilted will give you between 700 Wh and 1,000 Wh over a full day of clear weather (6-7 hours of useful sun). That is the upper range, the best-case scenario. In Scotland or northern England, knock off 20-30%. At altitude, results can be pleasantly surprising thanks to cleaner air (less atmospheric filtering) and light-coloured rock reflection, even if the useful day is a bit shorter due to terrain shadows.
The rule of thumb I have used for three years and which checks out on every trip: in summer in the UK, multiply your panel wattage by 3.5 to 4.5 to estimate your daily output in Wh. A 200 W panel gives roughly 700 to 900 Wh per day in summer. In spring or autumn (April-May, September-October), multiply by 2 to 2.5. In winter or persistent overcast, multiply by 1 to 1.5 -- and do not rely too heavily on solar as your primary source.
These figures assume a panel well oriented due south, well tilted at 30-35 degrees, with no shade. Knock off 30% if you leave the panel flat out of laziness. Knock off 50% if there are intermittent clouds passing every twenty minutes.
I have made most of them, so you might as well avoid them. It will save you frustration and possibly a few pounds of ruined food in a fridge that gave up.
Buying too small to save money. A 150 Wh station at £80 looks like a bargain. Except you charge your phone three times, your lamp works for one evening, and it is over. Guaranteed frustration. Your first camping trip goes badly, you decide portable stations are useless, and the kit ends up at the back of the garage forever. Better to spend £250-340 and have a positive experience from the first weekend. That initial investment determines whether you use your gear for ten years or sell it online in six months.
Forgetting the car charging cable (cigarette lighter or USB-C auto). Your panel produces nothing at night. And if the weather turns grey for two days -- which happens even in summer, just ask any camper in the Lake District -- your station drains with no backup. The cable that lets you charge your station while driving is your safety net. During the two-hour drive to the campsite, you recover 30 to 50% charge on most stations. It does not replace solar, but it saves you when solar fails. Always have this cable in the station bag.
Leaving the station in direct sun. The panel, yes -- it loves the sun, that is its job. The station, never. LiFePO4 batteries do not like prolonged heat. Above 45 degrees internal temperature, the station slows down or stops charging to protect itself. And the internal electronics (BMS, inverter) suffer too. Keep your station in the shade -- under the table, inside the tent on the shaded side, in the car boot if the car is in shade -- anywhere that stays below 35 degrees. The cable between the panel in the sun and the station in the shade is two or three metres long; that is more than enough.
Plugging in the panel before positioning it properly. A classic of laziness. You plug the cable between panel and station, set the panel down "roughly, will sort it later", and forget to optimise. Two hours later, you notice the panel is producing 80 W instead of the 150 W it could be giving. Take a different approach: plug it in first, then look at the power reading on the station screen. Adjust the angle. Does the power go up? Keep going that way. Turn a touch left, a touch right. You are looking for the maximum. On my Bluetti, the difference between "set down in a hurry flat" and "optimised in 30 seconds" is consistently 40 to 60 W more. Over a full 7-hour day, that is 300 to 400 Wh of difference. Almost half a fridge day gained.
Underestimating the fridge. A 12V mini-fridge looks harmless with its 45 W average draw. But it runs 24 hours a day. That is 400 to 700 Wh per day depending on outside temperature and how often you open the door. If your station is 500 Wh and you do not have a panel powerful enough to compensate, the fridge drains the battery in a day and a half -- faster in a heatwave. My personal rule: no fridge without a solar panel for camping longer than one night. That is the golden rule. If you do not want a panel, stick with a traditional cool box and ice packs.
Friday evening, before leaving. Charge your station to 100% from the mains at home. Check you have the solar cable (the one connecting panel to station), the car charging cable (your plan B), and a short multi-socket if you want to plug in several small devices at once. Pack the panel last in the car so it comes out first on arrival.
Saturday morning, on arrival. Set up the panel first, before even pitching the tent. The sun does not wait, and every hour of lost production is an hour you do not get back. Due south, 30-degree tilt, check no shade will cross the panel in the coming hours. Plug in the station and let it recharge while you set up camp. Two birds, one stone.
Saturday evening. Disconnect the panel before nightfall (it does nothing without sun, and you avoid the early morning dew coating the surface with droplets). Make a mental note of the battery percentage displayed. That is your reference for understanding your real overnight consumption.
Sunday morning. Get the panel back out at the first rays of sun. Compare the battery level with the previous evening. The difference is exactly what your night cost in energy with the fridge and devices on standby. That figure is your compass for every future trip. You will be able to size your needs precisely from now on.
Camping with a solar station is a genuine pleasure when well prepared. And a monumental frustration when it is not. The difference between the two comes down to thirty minutes of preparation at home and a few simple actions on site. Now you know what they are.
Between £250 and £340, you get a small station of 250-300 Wh and a 100 W panel. That is the bare minimum for light camping without a fridge. For genuine comfort with a fridge, budget £500 to £770 for a 600+ Wh station and a 100-200 W panel.
Zero installation. You take the panel out, unfold it, plug the cable between panel and station. It is literally plug and play. The only skill required is pointing the panel south and tilting it to 30 degrees. Thirty seconds of effort.
That is precisely where it comes into its own. Wild camping means no mains socket. Your station plus your panel equals your autonomy. As long as the sun rises, you have energy. In summer in southern England, a 200 W panel and a 1,000 Wh station make you practically self-sufficient indefinitely.
Cedric