RV Solar Panels and Harnessing The Sun
For RVers chasing adventure across wide-open highways and off-grid campsites, one modern upgrade is shining brighter than the rest—solar panels. Not long ago, these systems were considered a luxury. Today, they’ve become a staple for full-timers, weekend warriors, and anyone looking to reduce generator time and gain true energy independence.
If you’ve ever wondered whether solar is worth it for your RV, this article is your guide. We’ll cover why solar panels are useful, how to choose the right system, and what to expect from the installation process.
Why Go With RV Solar Panels?
- Freedom from the Hookup
The biggest draw of solar panels is the freedom they give RVers to boondock or dry camp without constantly worrying about shore power. Whether you’re parked in the desert, nestled in the woods, or just spending the night at a rest area, solar lets you recharge your batteries without firing up the generator. - Silent, Clean Energy
Unlike noisy, gas-hungry generators, solar panels silently gather energy from the sun with zero emissions. That’s a win for your ears, your neighbors, and the environment. - Extended Battery Life
By continuously topping off your house batteries during daylight hours, solar reduces the depth of discharge and helps extend the life of your battery bank—especially if you’re running lithium or AGM batteries. - Long-Term Cost Savings
While the upfront cost can feel steep, solar can pay for itself over time—especially if you avoid frequent campground fees and fuel expenses tied to running a generator.
Key Components of an RV Solar System
Before diving into what to buy, it helps to understand what goes into a complete solar setup:
- Solar Panels – Typically mounted on the roof, these convert sunlight into electricity.
- Charge Controller – Regulates how much power goes into your batteries and prevents overcharging.
- Inverter – Converts DC battery power to AC for household appliances (optional but essential if you want to run a microwave, TV, etc.).
- Battery Bank – Stores the energy you collect for use when the sun isn’t shining.
- Wiring & Mounting Hardware – Connects everything and keeps it secure on the road.
How to Choose the Right Solar Setup
- Know Your Power Needs
Start by evaluating how much electricity you typically use. Do you just want to keep lights and a fan running, or are you powering a fridge, TV, laptops, or even an air conditioner?
Use a power consumption calculator or track your amp-hour use over a few days. That total will help determine how much solar wattage you need and the battery capacity required to match it.
- Portable vs. Roof-Mounted Panels
- Portable Panels are great for occasional use or RVers who want to chase the sun manually by repositioning panels during the day.
- Roof-Mounted Panels offer a permanent, hands-free setup and are ideal for full-timers or frequent boondockers.
- Monocrystalline vs. Polycrystalline Panels
- Monocrystalline panels are more efficient and perform better in partial shade.
- Polycrystalline panels are slightly cheaper but less efficient, which may require more roof space.
- Consider Battery Compatibility
If you’re still running lead-acid batteries, solar will work—but not as efficiently. Upgrading to lithium batteries can dramatically improve performance, capacity, and lifespan, especially if you plan to live off-grid for extended periods.
Buying Solar Panels for Your RV
- Buy from a Reputable RV Solar Supplier
Stick with companies that specialize in RV applications—like Renogy, Zamp Solar, Go Power!, or Victron Energy. These brands offer high-quality gear designed for mobile use, and many provide complete kits with detailed instructions. - Look for Kits
If you’re just getting started, a solar panel kit is a smart option. These usually include panels, charge controllers, wiring, brackets, and instructions. Some even include inverters and fuses for a complete solution. - Think Scalable
If budget is a concern, start small. A 100–200W system is enough for basics like lights, fans, and phones. You can always add more panels later as your needs grow.
Installation: DIY or Hire a Pro?
- DIY Installation
If you’re comfortable with tools and basic 12V wiring, installing a solar kit on your RV is very doable. Be prepared to:
- Mount panels securely on the roof using the provided brackets
- Run wiring through a weatherproof roof gland
- Connect the charge controller near the battery compartment
- Size and fuse wires properly based on your total system amperage
Many RVers enjoy the process and save hundreds on labor. Just be sure to follow the manufacturer’s instructions carefully and consult wiring diagrams.
- Professional Installation
If you’re unsure about drilling into your roof or handling electrical connections, it’s worth hiring an RV technician or solar specialist. Expect to pay anywhere from $500 to $2,000 for a professional installation, depending on the system’s complexity.
Final Thoughts: Is Solar Right for You?
RV solar isn’t a one-size-fits-all solution. But for many RVers—especially those who boondock, travel full-time, or simply want the peace of mind of backup power—solar is a game changer.
Start by understanding your needs, do your research, and remember: the sun rises every day. With the right system, your energy can, too.
Need Help Choosing a System?
At The Smart RVer, we’re here to help. Tune into our latest podcast episode where we break down real-life solar setups from our community, or visit Highway 93 RV for expert advice, product recommendations, and installation tips.
