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One of the most common questions we get asked at Campalot is how many caravan solar panels do I actually need. It is a fair question, and one that most retailers make far more complicated than it needs to be. This guide walks you through the whole process step by step, no confusing spec sheets, no upselling, just a practical framework to help you figure out what you need before you buy.

At Campalot, our range of caravan solar panels covers fixed roof-mount panels, portable folding kits and everything in between. But before you browse, it is worth knowing how much power you actually need.

Why Caravan Solar Panels Make Sense for Australian Touring

Australia is one of the sunniest countries on earth. Most regions get between 4 and 6 peak sun hours per day, which makes solar a genuinely practical and cost-effective way to keep your batteries charged on the road.

Unlike a generator, solar is silent, needs almost no maintenance and lets you camp at free sites without worrying about fuel or noise restrictions. Once it is set up, it just works. Whether you are planning a Big Lap, a weekend away or full-time travel, well-sized caravan solar panels change how you travel.

Step 1: Work Out Your Daily Power Needs

Before you think about caravan solar panels, you need to know your daily power consumption. This is measured in watt-hours (Wh). Start by listing every device you plan to run and estimate how long you use it each day.

Common examples for a typical caravan setup:

• 12V fridge running 24 hours: roughly 600 to 1,000 Wh per day
• LED lighting for 4 hours: around 50 to 80 Wh
• Phone and tablet charging: 30 to 60 Wh
• 12V water pump, brief daily use: 20 to 30 Wh
• Starlink running 6 to 8 hours: 300 to 400 Wh

Add those figures together and you have your daily load. Your fridge is almost always the biggest draw. Everything else adds up in smaller amounts.

Step 2: Calculate the Solar Wattage You Need

Use this simple formula to size your caravan solar panels:

Daily watt-hours needed / Peak sun hours = Minimum solar panel wattage

Australia averages around 5 peak sun hours per day across most touring regions. So if your daily load is 1,000 Wh, you need at least 200W of solar panels.

In practice, add a 25 to 30 percent buffer to cover cloudy days, cable losses and charging inefficiency. That brings 200W up to around 250 to 260W as a real-world target.

Which Type of Caravan Solar Panels Are Right for You?

Fixed Roof-Mount Solar Panels

The most popular choice for caravans. They mount permanently on your roof and charge your batteries while you drive and while you park. Tidy, low-maintenance and always working when the sun is out.

Portable and Folding Solar Panels

Good for 4WDs, swags and anyone who wants flexibility. You can angle them toward the sun for better output and pack them away when not needed. A great supplement to roof panels or a standalone option for lighter setups.

Solar Blankets

Ultra-lightweight and packable. Ideal for minimalist touring or as a secondary panel. Less durable than rigid options, so not ideal as your only source of power on a long trip.

Quick Reference by Touring Style

• Weekend camper at caravan parks: 100 to 150W portable or fixed. Covers your fridge, lights and device charging without stress.
• Family caravan, regular touring: 200 to 300W fixed roof panels. Handles most everyday loads comfortably.
• Extended off-grid or Big Lap: 300 to 400W with a lithium battery bank. Gives you genuine independence from powered sites.
• Remote touring with Starlink and heavy loads: 400W or more. This is the serious end of the spectrum.

Do Not Forget the Rest of the System

Caravan solar panels are just one part of a complete setup. You also need a quality battery bank to store the energy and an MPPT solar charge controller to manage the charge efficiently and protect your batteries. Getting all three right is what makes the difference between a system that works reliably and one that frustrates you.

The Short Version

Sizing your caravan solar panels correctly does not have to be complicated. Work out your daily load, divide by your average sun hours, and add a buffer. Most caravanners end up somewhere between 200W and 400W, and that is more than enough to travel comfortably without hunting for powered sites.

If you are still not sure what suits your rig, get in touch. Helping you get the right setup is exactly what we are here for.

Shop solar panels for caravans at Campalot; fixed, portable and folding options for every touring style. campalot.com.au/collections/solar-panels