Size comparison
28 kW vs 48 kW generator
Two adjacent whole-house sizes. The bigger unit covers more load; the smaller one costs less to buy and run. Here's how to choose between them.
Side by side
| Spec | 28 kW | 48 kW |
|---|---|---|
| Typical use | Main systems + extra loads for large homes | Large homes with commercial-grade loads |
| Unit price (our catalog) | $9,509–$9,509 | $25,179–$25,703 |
| Models in catalog | 1 | 2 |
| Installed cost page | See 28 kW cost | See 48 kW cost |
Which one?
The 48 kW steps up to the next load class, useful if you're adding a second AC, a well pump, or an electric dryer to the backup. The 28 kW keeps the unit and install smaller and cheaper. If you're between them, run our sizing calculator on your actual loads before paying for the extra capacity.
Models at each size
Still choosing a size? Run the sizing calculator
Wondering what it costs? See the cost hub
Go deeper