Solar That Scales With Your RV
Solar Power and Lithium Battery System Design and Installation
Too many RVers think solar is an "all-or-nothing" investment. The truth is, the best mobile power systems are modular. You don't have to jump straight into a massive, multi-thousand-watt array if you aren't ready.
We specialize in designing systems that grow with your travel style:
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Just Starting Out? We help you lay the correct foundation. By upgrading to high-efficiency lithium batteries and a smart charge controller today, you can easily plug in more panels later without rewiring your rig.
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Ready for an Entire System? If you are tired of playing guessing games with your power management, we engineer top-tier, turn-key powerhouses. Complete with high-output inverters, massive solar arrays, and robust monitoring dashboards that run your entire rig seamlessly.
Engineered For Every Step Of The Journey
PATH 01
New to Solar
Perfect for those just starting their solar journey and looking for expert guidance.
- System design from anywhere in the US
- Expert rig-specific layout planning
- Cost-effective foundation for expansion
PATH 02
Upgrading to Lithium
Ideal for RVers wanting to double usable power and cut weight.
- 100% maintenance-free power storage
- Smart Bluetooth battery monitoring
- Double energy capacity of lead-acid
PATH 03
Full Off-Grid
Designed for full-timers and boondockers seeking complete energy independence.
- Run AC and large appliances silently
- Heavy-duty high-wattage solar arrays
- Massive turn-key lithium power banks
Where Are You on Your Journey?
Select the path below that best matches your immediate goals to view your ideal setup path.
RV solar power system design and installation
Your Starting Point - What It Unlocks
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"I'm just starting out." - Replace lead-acid batteries with smart lithium storage. Perfect for charging electronics, running lights, and maintaining basic 12V appliances overnight without power anxiety.
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"I want a mid-tier upgrade". - Adds a robust pure sine wave inverter and a moderate rooftop solar array. Unlocks the ability to use your microwave and outlets off-grid without turning on a generator.
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"I want an entire system". - A complete, heavy-duty power overhaul. Roof-spanning solar, massive lithium banks, and dual inverters engineered to run residential fridges, starlink, and air conditioning long-term.
Smart Lithium Upgrade
Stop Managing Your Power. Start Enjoying Your Trip.
Replace your restrictive factory lead-acid batteries with the ultimate baseline lithium upgrade. Zero maintenance, double the usable power, and 100% ready for future solar expansion.
Premium Components, Zero Compromises
We’ve bundled everything you need to swap out your legacy batteries safely and correctly:
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Premium LiFePO_4 Battery Bank: Choose between 100Ah, 200Ah or higher baselines. Delivers flat, consistent voltage down to 1% capacity—no more dimming lights as the night goes on.
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Smart Bluetooth Battery Monitor: Instantly see your exact state of charge, power draw, and remaining runtime directly on your smartphone.
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Precision Solar Charger Upgrade (if needed): Replaces or supplements your factory solar charger to ensure your new lithium cells charge safely and up to 4x faster than lead-acid.
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Heavy-Duty Fuse Block & Terminal Kit: Professional-grade safety hardware designed to protect your rig's electrical system from day one.
All Products Recommended by Will Prowse on YouTube
"DIY Solar with Will Prowse"
Why This Foundation Changes Everything
Standard Factory Lead-Acid vs. The Foundation Lithium Kit
Where We Work
Virtual Consultations -
Anywhere in the US and Canada
RV owners across the country can access expert custom solar and lithium system design help. We provide remote engineering and planning services no matter where you're parked.
In-Person Installs & Support:
MA, RI, CT & NH
We come directly to you in these states for professional on-site installations, power system upgrades, and localized troubleshooting for your rig.
EXPERT ENGINEERING
VERIFIED LITHIUM SAFE
MODULAR SYSTEMS
VERIFIED SUPPORT