Off-Grid Solar Sizer

For vans, RVs & cabins

Solar System Calculator

Size your off-grid power system in seconds

Pick your appliances and we'll estimate the battery bank, solar array, and charge controller you need to stay powered anywhere.

Your Loads

Add the appliances you run off-grid, then tune the wattage and daily runtime for each.

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System Sizing

Live estimate based on your loads and site conditions.

Daily Energy Use

730Wh

Total watt-hours consumed per day

Battery Bank

77Ah

Recommended lithium capacity

Solar Array

195W

Panel wattage to recharge daily

Charge Controller

21A

Minimum controller rating

Site & System Assumptions

Recommended Equipment Setup

A starting kit tuned to your numbers. Always verify specs against your exact appliances before buying.

Storage

Recommended Battery

100Ah 12V LiFePO4

Deep-cycle lithium (LiFePO4) sized to cover your daily draw with safe usable capacity and thousands of cycles.

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Generation

Recommended Solar Panels

2 × 100W Monocrystalline

A monocrystalline array matched to recharge your bank within a single day of average sun.

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Power

Recommended Inverter

1000W Pure Sine Wave

Pure sine wave output for clean, appliance-safe AC power with headroom for surge loads.

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