Generator types
Generator types describe several different characteristics: how a unit is installed, how it produces its electrical output, and which fuel it uses. These labels can overlap. A portable generator, for example, can also be an inverter generator and a dual-fuel generator.
In this topic
Portable generators
The components, electrical ratings, connections and operating limits of a portable engine generator.
Generator typesStandby generators
How a permanently installed standby generator works with transfer equipment, fuel supply and load management.
Generator typesInverter generators
The AC–DC–AC conversion process behind inverter generators, including speed control and output limitations.
The main types
The first distinction is between equipment moved into position for use and equipment installed as permanent backup infrastructure. Output technology describes a different part of the machine. [1][2]
| Type | Defining characteristic | Read next |
|---|---|---|
| Portable | Movable, normally set up and operated by a person | Portable generators |
| Standby | Permanently installed backup system, often with automatic transfer | Standby generators |
| Inverter | Converts generated AC to DC, then synthesizes the final AC output | Inverter generators |
Why the labels overlap
Portable and standby describe the installation and operating arrangement. Inverter describes electrical conversion. Natural gas, propane and dual fuel describe the fuel system. Treating these as separate attributes makes specifications easier to compare without assuming that one label explains the whole generator.
Reading a generator specification
A type name does not establish capacity or compatibility. The useful details include continuous output, starting capability, voltage, frequency, fuel-specific ratings and the connection equipment. For building backup, the transfer arrangement is part of the system definition. Begin with the type articles, then use the electrical and sizing topics to interpret the ratings.
Sources and further reading
- Generac — Portable vs. home standby generators ↗www.generac.com
- Honda — Inverter generator advantages ↗powerequipment.honda.com
Use the manual and nameplate for the exact model. Local requirements and site conditions take precedence over general examples.