Finding the Right Motorhome Solar Panels
There are a few things to think about when choosing RV solar panels.
Firstly, consider roof space. Larger motorhomes may have room for multiple rigid panels mounted permanently to the roof, while compact panels or flexible designs that conform to curved surfaces are better suited to smaller campervans.
What's your daily power consumption? Think about the appliances you regularly use, such as 12V fridges, lighting, water pumps, and electronics chargers. The more equipment you rely on, the more solar capacity you'll need to keep your battery bank topped up and humming away.
Finally, decide which panel format suits your setup:
- Rigid panels: durable and efficient for permanent roof installations
- Flexible panels: lightweight options that can fit curved or limited roof areas
- Portable panels: ideal for travellers who prefer a flexible campsite setup
You might start with a single panel and expand your system over time as your power needs grow.
Flexible and Folding Solar Panels for Versatile Setups
If you want flexibility in how and where you generate your power, portable solar options are the way to go.
Solar blankets and folding panels can be placed in the sun while your motorhome remains parked in the shade, which is especially useful in hot summer conditions when keeping the RV cool is a must.
Flexible and folding solar panels are also ideal when:
- Roof space is limited
- The roof surface is curved or uneven
- You want a backup charging solution
- You move between campsites frequently
Many folding solar panels come with integrated legs and carry handles, making them easy to deploy and pack away.
Charge Controllers for Reliable RV Battery Management
A solar regulator is essential for managing the power flowing from your panels to your batteries. The controller makes sure your battery bank receives the correct charging voltage and prevents overcharging, helping extend battery life.
It's important to match your regulator to the size of your solar array and your battery capacity.
MPPT (Maximum Power Point Tracking) controllers are popular for RV setups because they maximise energy harvest from your solar panels, especially during low-light conditions or partial shading.
Many modern controllers also offer Bluetooth monitoring, allowing you to easily check charging performance and battery status from your smartphone.
Multi-stage charging technology further protects your batteries by adjusting charge levels throughout the charging cycle, helping to maximise their health and lifespan.
Mounts Connectors and Solar Accessories
You'll want reliable solar power for your motorhome, so secure, weatherproof and easily maintainable accessories are key.
Burnsco's solar installation components include:
- Mounting bracket kits for secure roof installations
- Cable entry glands to route wiring safely into your motorhome
- MC4 connectors and leads for solar panel connections
- Anderson plugs for portable panel setups
- Y connectors for expanding solar arrays
- Solar cable designed for outdoor durability
These additional parts keep your solar power setup simple and running smoothly, trip after trip.
Shop Solar Power Panels for Camping and More at Burnsco
Burnsco has everything you need to build or upgrade your RV power setup. Alongside solar panels and accessories, you'll find equipment designed to make life on the road easier and more enjoyable, including 12V fridges, RV awnings and RV covers.
Shop online for solar panels NZ-wide or visit your local Burnsco store. For assistance choosing solar panels, call our friendly team on 0800 10 20 41.
Frequently Asked Questions
Are there any legal requirements for installing caravan solar panels in New Zealand?
RV solar systems in New Zealand can typically be installed without permits, but they should still follow good electrical safety practices. For typical 12V solar setups, the main requirements focus on safe wiring, proper cable sizing, circuit protection, and secure battery installation with proper ventilation. Components should also be weather-resistant to handle New Zealand's changing outdoor conditions.
If your solar system connects to a 240V electrical system, it's worth calling a qualified electrician for installation to ensure it complies with New Zealand electrical regulations.
How do solar panels perform in winter or low-light conditions in New Zealand?
Solar panels still generate power in winter and on cloudy days, but naturally, overall output will be lower than on bright summer days. Efficient systems that use MPPT charge controllers can help maximise energy production in lower light conditions. To help improve performance, position your panels in direct sunlight and keep them clean.
Can I charge a lithium battery with a standard RV solar setup?
Yes, if your solar charge controller is compatible with lithium batteries. Many MPPT controllers include selectable battery settings for lithium, AGM, and lead-acid batteries.
Can I run a 240V appliance directly from my RV solar system?
Solar panels typically charge your RV's 12V battery system, which then powers 12V appliances. To run 240V appliances, you'll usually need an inverter that converts 12V battery power to 240V. The size of the inverter and battery bank required will depend on the appliance's power demand.
How long do solar panels typically last on an RV?
Most high-quality solar panels continue to produce usable power for 20 years or more, but output can gradually decrease over time. Proper installation and occasional cleaning can help maintain performance.
Can I use solar panels while the RV is moving?
Yes. Roof-mounted solar panels can continue charging your batteries while your RV is moving. Just make sure they are properly installed and connected to the charge controller. Portable or folding panels are typically packed away during travel and put to use once you reach your campsite.
