Meta Description (SEO): Off-grid solar powered milk tea shop in a 20ft container: 15 kWp solar, 60 kWh battery storage, 600–1,000 cups per day, plug-and-play and weatherproof.
The Off-Grid Flagship 20FT is our all-in-one answer for operators who want a complete milk tea business without depending on the local power grid. Built inside a standard 20-foot shipping container, it pairs a 15 kWp solar array with 60 kWh of LiFePO4 battery storage — enough to keep refrigerators, an ice maker, POS systems and lighting running through the day and night. The unit arrives factory-fitted, connects on site in about three days, and can trade anywhere the sun shines.
| Parameter | Specification | Note |
|---|---|---|
| Container size | 20 ft (approx. 6.06 * 2.44 * 2.90 m) | Standard shipping container, corten steel, IP54 |
| Shop area | About 14 m² (plus optional 8 m² awning) | Service counter + prep + storage |
| Solar capacity | 15 kWp (8 kWp roof + 7 kWp optional ground) | Monocrystalline PERC 550W, 25-yr warranty |
| Battery storage | 60 kWh LiFePO4 | 6,000 cycles @80% DoD, 10-yr warranty |
| Inverter | 10 kW hybrid, MPPT | AC/DC output, grid backup option |
| Est. daily generation | 60–75 kWh | Based on 4–5 peak sun hours, 80% system efficiency |
| Off-grid autonomy | 2–3 days | At typical load of 25–35 kWh/day |
| Output capacity | 600–1,000 cups/day | Depending on menu and staffing |
| Power modes | Off-grid default; grid backup optional | Auto switch by EMS |
| Set-up time | About 3 days on site | No foundation required |
| Operating temperature | -20°C to +50°C | Insulated, engineered wind/snow loads |
| Included equipment | Sealing machine, ice maker, 3 fridges, POS, LED menu board, HVAC, water tanks | Factory pre-installed |
Owners typically cut store electricity bills to near zero while gaining full independence from blackouts and unstable grids. Because every kWh is generated and stored on site, the store keeps trading during outages — a real revenue advantage. The long warranty on panels and battery, combined with a steel container shell that lasts decades, makes this a durable, resellable asset rather than a temporary kiosk.
Q: Can it really run with no grid connection at all?
A: Yes. Solar generation plus 60 kWh storage covers a full day of normal operation, with 2–3 days of autonomy on stored energy alone.
Q: What happens during several cloudy days in a row?
A: The EMS manages load automatically and the optional grid backup (or a small generator port) can be used during extended bad weather.
Q: How long does installation take?
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