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GENERATORS

Generator Cost Calculator

Estimate the cost of a standby generator: unit, installation and hookup.

JOB INPUTS

Enter your numbers

Loading saved values

Generator capacity in kW

kW
Generator capacity in kW

Choose the fuel source

Choose the fuel source

Distance between the generator and the house

ft
Distance between the generator and the house
Results update automatically
CALCULATED RESULTUSD
Total installed cost$10,855.00
Size22 kW
Unit$7,480.00
Installation$3,375.00
Fuel$0.00
FORMULA USED$7,480.00 + $2,500.00 + $875.00 + $0.00 = $10,855.00

HOW TO USE IT

How to use the Generator Cost Calculator

  1. 1

    Enter the generator size in kW.

  2. 2

    Choose the fuel (0 = natural gas, 1 = propane).

  3. 3

    Enter the distance between the generator and the house.

  4. 4

    Review the total installed cost.

THE MATH

Generator cost formula

Total = unit + installation + line + fuel

The unit runs about $330-$340 per kW. Base installation runs ~$2,500. The line to the house adds $35-$60/ft. Propane adds ~$800.

PRACTICAL EXAMPLE

A 20 kW natural gas generator

Unit $6,800 + installation $2,500 + line (25 ft × $35) $875 = about $10,200 installed.

FAQ

Frequently asked questions

How much does a standby generator cost in 2026?

A 20-22kW generator installed runs $7,000-$17,000 (typical $10k-$17k).

Is propane more expensive?

Yes, the propane hookup adds about $800 over natural gas.