Solar kit for caravans
A caravan runs on 12 V, and the right solar kit means you do not have to chase electric hook-ups at every campsite. Here is a quick guide and a tool that calculates the right kit from how you use your caravan.
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We start with typical caravan loads such as a fridge, lighting, water pump and charging. Adjust them freely for a more accurate recommendation.
Quick guide
How many solar panels are needed on the roof?
For a typical caravan, 150–300 W goes a long way. A portable folding panel is a very useful addition when the caravan is parked in the shade.
Read more in the Academy →Which battery is suitable for a caravan?
A 100–150 Ah LiFePO4 battery is a common choice today. It weighs about half as much as a lead-acid battery, handles deep discharge and lasts for more than 3,000 cycles.
Read more in the Academy →MPPT or PWM charge controller?
MPPT can produce 15–30% more energy from the same panel and is worth the cost even in a smaller caravan system. PWM only makes sense for a very small kit.
Read more in the Academy →Do I need an inverter for 230 V?
Only if you want to use ordinary mains sockets without an electric hook-up. Much of a caravan already runs on 12 V, which is both simpler and more efficient.
Read more in the Academy →Frequently asked questions
How large a solar kit does a caravan need?›
For summer weekend trips, a 180–200 W panel array and a 100 Ah LiFePO4 battery are often enough. Longer holidays with a fridge and lighting typically need 200–360 W of panels and a 200 Ah battery.
Can I install caravan solar panels myself?›
You can normally install the DC side — panels, charge controller and battery — yourself as long as the voltage stays below 50 V DC. The 230 V AC side must be installed by a qualified electrician.
How should I protect the caravan wiring?›
Use the correct cable cross-section and place a fuse close to the battery. Otherwise, a short circuit can cause a fire. Kraftur shows a recommended cable size and fuse rating.
Do solar panels work in winter?›
Yes, but output from November to February is typically only 10–20% of summer levels. Winter use often requires support from an electric hook-up.
How long does the system last?›
Solar panels typically last 25–30 years, a LiFePO4 battery 10–15 years or 3,000–6,000 cycles, and MPPT controllers and inverters around 10–15 years.
Learn more
Not sure what you need?
Run the planner — it suggests a battery, panels and an inverter that match your appliances. Takes 2 minutes.
Calculate your package