What Can a Solar Generator Run? Complete Power Guide 2026

Short answer: A 1,000Wh solar generator runs a refrigerator for 6-7 hours, a CPAP for 25 nights, Starlink for 13 hours, a microwave for 50 minutes, or a portable AC for 1.7 hours. Runtime depends entirely on capacity (Wh) and the appliance’s wattage. Our Runtime Database covers all 49 solar generators across 5 use cases with exact calculations.

Quick Reference: What Can Each Size Run?

Generator Size	Refrigerator	CPAP	Starlink	Microwave	Portable AC
500 Wh	3.1 days	13 nights	6.7 days	26 min	51 min
1,000 Wh	6.1 days	25 nights	13.5 days	51 min	1.7 hrs
2,000 Wh	12.2 days	51 nights	27 days	1.7 hrs	3.4 hrs
3,000 Wh	18.2 days	76 nights	40 days	2.6 hrs	5.1 hrs
5,000 Wh	30+ days	126 nights	66 days	4.3 hrs	8.5 hrs

Formula: (usable Wh × 85% inverter efficiency) ÷ appliance wattage = hours. Multiply by the appliance’s usage pattern for real-world runtime.

By Appliance

• Can a solar generator run a refrigerator? — 150W average, 1,200W surge required. Most generators handle it.
• Can a solar generator run a CPAP? — 40W average, no surge. Even small generators run CPAP for weeks.
• Can a solar generator run Starlink? — 65W (Gen 2), no surge. 1kWh unit = 13+ hours continuous.
• Can a solar generator run a microwave? — 1,000W, 1,500W surge. Needs 2,000W+ continuous output generator.
• Can a solar generator run a portable AC? — 500W avg, 2,200W surge. Challenging but achievable with right unit.

What Solar Generators Cannot Run

Portable solar generators cannot power central HVAC systems (5,000-20,000W), electric water heaters (4,500W continuous), or electric vehicle charging at practical speeds. For whole-home backup including these loads, a whole-home battery system (Anker SOLIX F3800, EcoFlow DELTA Pro with expansion) is required.