← Journal
Engineering11 min read
Expedition Trailer Solar & Power Systems: The Engineer's Guide
How to size, spec, and understand the electrical system on an expedition trailer. The math behind solar, lithium batteries, and going truly off-grid.
December 15, 2024 · Roam Resilient
Ready to Build?
Commission your RREV.
Every RREV is built to your mission. Tell us where you're going, how long, and who's coming — we'll spec the right build.
More from the Journal
Guide
How to Choose the Right Expedition Trailer in 2026: The Complete Guide
Family weekender or six-month off-grid mission? Solo overlander or group basecamp? Everything you need to know before spending $85K–$200K on an expedition trailer.
14 min read
Adventure
Expedition Trailers in California: The Complete Overlander's Guide
From Mojave to the Sierras, Baja to the Lost Coast — California is the overlanding capital of North America. Here's how to explore it in an RREV.
9 min read
Build Log
Building the Titan Edition: Inside RREV's Flagship Expedition Trailer
A detailed look at what goes into building the Titan Edition — our 27ft flagship expedition trailer. From chassis fabrication to final delivery.
8 min read