Best 1,000–2,000W Solar System for Tiny Homes
Tiny home on wheels with a 12V fridge, LED lights, laptop, TV, microwave, fan, and phone charging. Propane for cooking and water heating. Approximately 3.8 kWh per day.
Quick Answer
1,000W of panels generates 3,750Wh per day in a 5-sun-hour region, closely matching the 3,800Wh daily load with minimal surplus. For a THOW that moves frequently, a 48V system with compact LiFePO4 batteries balances weight and capacity. The 198Ah at 48V stores 9,500Wh usable — 2.5 days of autonomy. The 2,000W inverter handles the microwave, TV, and all cabin electronics. A 48V system on a THOW reduces battery weight by 50% compared to an equivalent 12V build. The plug-and-play solution is the EcoFlow Delta 2 Max + 400W Solar Panel ($1,848), which delivers 2,048Wh of storage and 2,400W of AC output with solar recharge built in.
System Specification
Sized for 3,800Wh/day at 48V.
| Component | Specification |
|---|---|
| Daily Energy Use | 3,800 Wh/day |
| Solar Panel Array | 1,000W |
| Battery Capacity | 9,500Wh (198Ah at 48V) |
| Charge Controller | 40A MPPT |
| Inverter | 2,000W Pure Sine Wave |
| System Voltage | 48V DC |
Option 1: EcoFlow All-in-One Bundle (Easiest Setup)
EcoFlow Delta 2 Max + 400W Solar Panel
2,048Wh expandable to 6,144Wh with 400W panel. 2,400W output covers heavy appliances and tools.
- Capacity: 2,048Wh
- AC Output: 2,400W continuous
- Price: $1,848
No wiring required. Plug the solar panel into the station and plug appliances into the AC outlets.
Option 2: DIY Mid-Range Build (Best Long-Term Value)
Higher upfront cost than a bundled station but significantly more capacity and expandability. Best for permanent installations.
renogy-200w-x5
litime-100ah-48v-x2
renogy-rover-40a
renogy-2000w-inverter
Option 3: DIY Budget Build (Lowest Upfront Cost)
The lowest-cost path to solar power. AGM batteries cost more to operate long-term due to shorter cycle life, but work well for occasional or seasonal use.
bougerv-200w-flexible-x5
weize-200ah-agm-x4
epever-40a
bestek-2000w-inverter
Why This System Works
1,000W of panels generates 3,750Wh per day in a 5-sun-hour region, closely matching the 3,800Wh daily load with minimal surplus. For a THOW that moves frequently, a 48V system with compact LiFePO4 batteries balances weight and capacity. The 198Ah at 48V stores 9,500Wh usable — 2.5 days of autonomy. The 2,000W inverter handles the microwave, TV, and all cabin electronics. A 48V system on a THOW reduces battery weight by 50% compared to an equivalent 12V build.
Frequently Asked Questions
How do I secure solar panels on a tiny home on wheels?
Panels on a THOW roof must withstand highway speeds of 65–70 mph and vibration over rough roads. Use only rigid-mount racking with through-bolts into roof structure, not adhesive or Z-clips. L-foot mounts bolted into roof purlins with self-sealing washers provide secure attachment. Keep panel chord length under 72 inches to minimize wind load. Some THOW builders use low-profile flush-mount frames to reduce the aerodynamic profile. Inspect all mounts and wiring connections every 6 months for vibration-induced loosening.
Will this system work when I move to a new location?
Yes — the system produces based on the sun hours at your current location. Moving from Phoenix (6.5 peak sun hours) to Seattle (4.0 peak sun hours) reduces daily production by 38%. Your 1,000W array generates 6,500Wh in Phoenix versus 4,000Wh in Seattle. The Seattle production barely covers the 3,800Wh daily load with no surplus. If you regularly camp in the Pacific Northwest, consider 1,200W of panels for an adequate buffer in low-sun regions.
Can I use flexible panels on a THOW roof?
Flexible CIGS or monocrystalline panels from BougeRV work on THOW roofs and save 30–40 lbs compared to rigid panels. The trade-off is 15–20% lower efficiency and faster degradation from highway heat buildup. Flexible panels adhered to the roof run 15–25°F hotter than raised rigid panels because there is no air gap for cooling. Higher temperatures reduce output and accelerate cell aging. If weight saving is critical for THOW compliance with towing weight limits, use flexible panels but plan to replace them in 8–10 years rather than 25.
Different loads? Customize for your setup.
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