Off-Grid Trailers That Never Look for a Hookup
Off-grid is a systems problem: how much energy you harvest, how much you store, how much water you carry, and how well the cabin holds temperature while doing it. Get any one wrong and "off-grid" means "two nights, then a campground."
RREV trailers are engineered as complete off-grid systems — power, water, heating, and cooling sized together, managed by one platform, with real headroom for a week of unsupported living.
The Lineup
Large-class flagship. 27 ft of living space, queen bed, full bathroom, and the biggest water and battery banks in the lineup.
Explore →Mid-size, Baja-trail engineered. Sleeps up to 5 with the bunk layout. The balance point of capability and livability.
Explore →Compact and agile with a motorized king-bed lift. Slips through tight terrain bigger rigs can't reach.
Explore →The power system
A 24v 400Ah lithium bank (9.6 kWh, upgradeable to 800Ah) with a smart BMS integrated into the RREV HUB. Harvest comes from three 52v 450W rigid panels through a 2,400W Victron MPPT, a 50A DC-DC charger off the tow vehicle, and a second 50A Anderson input for portable panels. A 3,000W Victron inverter-charger runs the 120V loads. Everything is monitored and switched from the Samsung touchscreen control panel or the RREV HUB app.
Water, heat, and cooling that work unplugged
Up to 91 gallons in internal stainless tanks — including a dedicated drinking tank with Acuva UV treatment — kept warm inside the insulated shell for four-season use. Heat is a Truma Combi diesel furnace (air + hot water from one unit, sipping from a diesel tank, not your propane supply). Cooling is our custom 24v 11,000 BTU air conditioner that runs directly off the battery bank — overnight AC without a generator.
Insulation is an energy system too
Patent-pending 4-layer GRP composite panels with a fifth aluminum skin, 2.44" walls and 3" floor and roof, with nine industrial polyamide thermal breaks killing every bridge. The less energy the cabin leaks, the smaller the heating and cooling loads — which is what actually makes a -20°F to 120°F operating range possible on batteries and a diesel tank.
Questions We Actually Get
How long can an off-grid trailer run without hookups?
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An RREV with standard equipment supports roughly a week for two people: 9.6 kWh of lithium storage replenished by 1,350W of solar covers fridge, lights, heat circulation, and electronics indefinitely in decent sun, and 91 gallons of water (Baja Edition) is the practical limit for showers and cooking. Conservative use or extra portable solar extends it.
Can the air conditioner really run off the batteries?
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Yes — that is why RREV builds a custom 24v DC air conditioner instead of bolting on a 120V rooftop unit. At 11,000 BTU running natively on DC, it avoids inverter losses and runs overnight from the 400Ah bank, with solar recovering the charge the next day. No generator, no idle-parked truck.
Do off-grid trailers work in winter?
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RREV trailers are rated to -20°F: every water tank and line except the grey tank lives inside the heated, insulated shell; the Truma Combi diesel furnace heats both cabin air and domestic hot water; and thermally-broken composite panels keep the load small enough for the diesel and battery supply to carry for days.
What is the RREV HUB?
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The RREV HUB is our proprietary integration platform: solar, shore, and vehicle charging, the battery BMS, inverter, lighting, vent fans, and steps all managed through one system, controlled from an onboard Samsung touchscreen or the RREV HUB app (web, iOS, Android) — locally always, remotely with a subscription after the first free year.
Talk to the builders.
No dealership, no sales floor. Configure your rig or speak directly with the team that will build it.