About

GeneratorDB is a specification database for consumer generators sold in the US — currently 125 models across 10 manufacturers.

Where the numbers come from

Specs are compiled from manufacturers' own published documentation, with the source linked on every product page so you can check it. Where a manufacturer does not publish a figure, the field shows a dash. We do not estimate, interpolate, or carry a number across from a similar model.

That matters most for noise. Roughly half the industry declines to publish a decibel rating, and those that do measure at different loads and distances — a figure quoted at 25% load and 23 feet is not comparable to one at half load and 7 metres. Every decibel figure here carries the conditions the manufacturer stated.

Corrections

Manufacturers revise models without changing the model number, so specs drift. If you find a figure that disagrees with the unit in front of you, the nameplate wins — and we would like to know.

How this is funded

Links to retailers are affiliate links. As an Amazon Associate I earn from qualifying purchases. That costs you nothing and does not influence which generators appear or how they are ranked — the sizing tool recommends whatever actually fits the load, and the database lists everything we have specs for regardless of whether it is purchasable through an affiliate link.

What this is not

This is a reference for comparing published specifications. It is not electrical advice. Connecting a generator to a home's wiring requires a transfer switch and a licensed electrician — backfeeding through a dryer outlet kills utility line workers and is illegal everywhere in the US.