Off-Grid Box
Off-Grid Box: a 2-person hotel unit with 48 h of autonomy
Built on an insulated 20ft high cube shipping container with a solar and battery pack, a urine-diverting dry toilet and integrated tanks. The unit goes onto land with no utilities, needs no trenching or connection, and can be redeployed with the season.
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Technical specifications
| External dimensions | 6.06 × 2.44 × 2.90 m |
|---|---|
| Interior floor area | 13 m² |
| Capacity | 2 adults |
| Bed | 160 × 200 double bed |
| Shower room | 80 × 80 shower, washbasin, urine-diverting dry toilet |
| Autonomy | 48 h for 2 adults |
| Fresh water | 300 L integrated tank (fire-hose coupling fill) |
| Grey water | 250 L drainable tank |
| Black water | None (urine-diverting dry toilet, compostable cartridge) |
| Power generation | 2.8 kWp rooftop solar (7 × 400 W panels) |
| Storage | 10 kWh LiFePO4 battery + 230 V backup mains charger |
| Heating / cooling | Reversible air-to-air heat pump |
| Hot water | 30 L electric water heater |
| Equipment | Kitchenette (single induction hob, 90 L fridge), TV, 4G/5G Wi-Fi, dual-flow ventilation |
| Access | Smart code lock, fully digital check-in |
| Insulation | 100 mm walls and roof, double-glazed joinery |
| Operating weight | 4.5 t |
| Installation | Crane truck, 4 adjustable pads, commissioned in half a day |
| Monitoring | Remote telemetry for battery, water and tank levels |
Operating costs
Limited electricity use
Reversible heat pump, LED lighting and 100 mm insulation on walls and roof.
No front-desk staff
Remote operation: automatic access codes, smart lock and telemetry.
Simplified maintenance
A single service hatch: fresh water refill and grey water emptying in one visit.
Who it is for
- Operators looking to monetise land without utilities
- Campsites and estates adding capacity
- Seasonal and event operation with redeployment
Regulatory framework
It depends on the land, the length of the installation and whether the unit stays mobile or becomes fixed. In France, an installation of less than three months is exempt from formalities in most cases (article R.421-5 of the planning code); beyond that, a prior declaration or a permit may be required depending on floor area and zoning. We review your situation with you before any order.
