How big a generator do I need to run a refrigerator and a few lights?

A modern refrigerator uses 100–400 watts running. Add lights, phone chargers, and a TV and you need about 1500–2000W of running capacity. A 2200W inverter generator handles this comfortably.

Can I run a portable generator indoors or in a garage?

Never — portable generators produce carbon monoxide, an odorless, lethal gas. Always run generators outdoors, at least 20 feet from doors, windows, and vents.

How long can a portable generator run on a full tank?

Depends on load and tank size. A Honda EU2200i runs 8.1 hours at 25% load on 1 gallon of gas. A large 8-quart tank model at 50% load may run 10–12 hours.

Best Portable Generators of 2026

A portable generator provides peace of mind when the power grid fails — keeping refrigerators running, sump pumps active, and medical equipment on during outages. Modern inverter generators add clean, quiet power suitable for sensitive electronics.

These are the best portable generators of 2026, covering inverter models for camping and quiet neighborhoods, and heavy-duty open-frame generators for whole-home backup.

What to Look For

Inverter vs. Open-Frame: Inverter generators produce clean sine wave power and run quietly (50–60 dB). Open-frame generators are louder (70+ dB) but produce more watts per dollar for heavy loads.
Running vs. Peak Watts: Running (continuous) wattage is the key spec. Peak watts only last seconds. Size your generator to the combined running wattage of all appliances you need simultaneously.
Fuel Efficiency: Inverter generators auto-throttle to demand — using far less gas at partial load. This extends runtime and lowers long-term fuel cost.
Starting Method: Electric start (push-button or remote key) is far easier than pull-cord, especially in an emergency. Look for dual-start on heavy-duty models.
Transfer Switch Compatibility: For whole-home backup, ensure the generator can connect to a transfer switch to power your home's panel. Consult an electrician for permanent installation.

Our Top Picks

#1 Best Overall

Honda EU2200i Portable Inverter Generator

The industry benchmark — 2200W inverter generator with Honda GXR120 engine, ultra-quiet 48 dB operation, 4-gallon run time at 1/4 load, and parallel capability. The standard for reliability.

~$1,000 View on Amazon →

#2 Best Dual Fuel

Champion 3500-Watt Dual Fuel Inverter Generator

Runs on gasoline or propane — propane is easier to store long-term for emergencies. 3500W of clean inverter power, electric start, and Quiet Technology at 59 dB.

~$600 View on Amazon →

#3 Best Value

Westinghouse iGen4500 Super Quiet Inverter Generator

4500W peak / 3700W running output with 52 dB noise level. TT-30 RV outlet, remote start, and a large fuel tank giving 18 hours at 25% load.

~$600 View on Amazon →

#4 Best Power/Price

Generac 7680 GP3500iO Open Frame Inverter

Generac's TruePower inverter technology delivers 3500W of clean power with USB outlets, parallel capability, and Generac's OHV engine with a 3-year warranty.

~$800 View on Amazon →

Bottom Line

The Honda EU2200i is the gold standard for reliability and quiet operation — it's worth the premium for long-term dependability. Budget buyers get serious value from the Westinghouse iGen4500.