generator-for-home.com Size my home

Generator installation cost in Colorado

About $10,969 to $15,569 covers installing a 22 kW whole house generator running on natural gas, in Colorado. Pay here is $31.88 an hour for electricians, 7% less than the $34.37 US average, and that wage drives the electrician cost line, $2,800 to $5,100.

$10,969 to $15,56922 kW installed in Colorado, natural gas
$2.89 / $6.0022 kW an hour at half load, gas / propane (EIA)
273 minwithout power per customer, 2025 (21st of 51, EIA)

Is 22 kW the right fit? Use three questions to size your house.

What each size costs to install in Colorado

Colorado prices for fuel at half load. Generac posts a fuel table for each model. The 18 kW and 24 kW models, plus the 26 kW model, are rated to use no more fuel per hour than the size below, so hourly fuel use doesn't climb in step with kW.

SizeNatural gas, installedGas at half loadPropane, installedPropane at half loadFuel figures
10 kW$8,219 to $12,819$1.43/h$8,419 to $13,219$2.30/hGenerac Guardian 10 kW
14 kW$9,549 to $14,149$2.77/h$9,749 to $14,549$4.29/hGenerac Guardian 14 kW
18 kW$10,369 to $14,969$2.40/h$10,569 to $15,369$4.03/hGenerac Guardian 18 kW
22 kW$10,969 to $15,569$2.89/h$11,169 to $15,969$6.00/hGenerac Guardian 22 kW
24 kW$11,389 to $15,989$2.88/h$11,589 to $16,389$6.00/hGenerac Guardian 24 kW
26 kW$11,819 to $16,419$2.67/h$12,019 to $16,819$4.89/hGenerac Guardian 26 kW

Breakdown of the 22 kW cost in Colorado

Labor runs up to $400 below US average pay here, where the $31.88 hourly rate ranks 32nd of 51.

Line, 22 kWNatural gasPropaneBasis
Generator$6,309$6,309Bundle list price from Generac for 22 kW, without the switch
Transfer switch$1,060$1,060Difference between Generac's prices with the switch and without it
Electrician: switch, wiring, start-up$2,800 to $5,100$2,800 to $5,100install ranges published, based on the $31.88 an hour Colorado wage (BLS)
Fuel line$500 to $1,900$700 to $2,300A meter feeds the gas line; the tank feeds the propane line.
Pad and permit$300 to $1,200$300 to $1,200composite pad or slab, local fees
Installed$10,969 to $15,569$11,169 to $15,969propane leaves out the tank

Colorado fuel cost

FuelPrice22 kW an hourThree days
Natural gas$14.19 per 1,000 ft³$2.89$208
Propane$2.37 a gallon$6.00$432 (182 gal)

In Colorado, gas costs less: half load on a 22 kW runs $2.89 an hour, compared with $6.00 on propane. For residential gas, this state ranks 7th cheapest of 51.

Propane tankUsable at 80%22 kW at half loadFill at Colorado price
250 gal200 gal79 h$474
500 gal400 gal158 h$949

Tank hours by size.

Colorado outages

273 min2025, all events
167 minten-year average
117 min2025 without major storms

In 2025, Colorado customers lost power for an average of 273 minutes, near the US figure of 269, and the state ranks 21st highest of 51. Major storms accounted for 57% of it; on ordinary days, outages came to 117 minutes. Of the last ten years, 2025 was the worst, and the ten-year average was 167 minutes.

Year by year since 2016
YearMinutes out, all eventsRank of 51 statesWithout major storms
202527321st117
202425731st119
202310047th89
202214441st97
202118530th105
202013640th83
201918532nd84
201810050th87
201713340th80
201615535th84

Colorado utilities and their 2025 outages

UtilityCustomersMinutes outOutages eachMinutes per outage
Public Service Co of Colorado1,542,1203601.58228
City of Colorado Springs261,349410.6860
CORE Electric Cooperative181,6983810.97393
United Power, Inc117,1313031.18257
Black Hills Colorado Electric, LLC111,502950.90105

In 2025, customers of CORE Electric Cooperative had 381 minutes without power, while City of Colorado Springs had 41 minutes. The 9.3 to one spread means your street's utility matters more than the 273 minute statewide figure. Across all utilities, customers lost power 1.30 times during the year on a customer-weighted average, compared with 1.35 across the US. Outages on Public Service Co of Colorado lines lasted 228 minutes on average, or about 3.8 hours. A 22 kW generator at half load would use $11.00 of gas during that time.

Major FEMA disasters in Colorado since 2016

Of the 4 major disasters declared in all, 3 were wildfires and 1 was a flood, with the most recent in September 2026 and COVID-19 left out. Wildfires accounted for 3; utilities in fire country also shut off power on purpose during high winds, and those shutoffs are never counted as declarations.

DeclaredDisasterFEMA number
September 2026Wildfires, Flooding, and MudslidesDR-4944
August 2023Severe Storms, Flooding, and TornadoesDR-4731
December 2021Wildfires and Straight-Line WindsDR-4634
January 2021WildfiresDR-4581

Colorado and neighboring states

State22 kW on gas, installedWageMinutes out
Colorado$10,969 to $15,569$31.88273
Arizona$10,769 to $15,269$30.8869
Kansas$11,069 to $15,769$33.27193
Nebraska$10,769 to $15,269$30.75543
New Mexico$10,569 to $14,869$28.66162
Oklahoma$10,769 to $15,269$30.49297
Utah$10,869 to $15,369$31.39117
Wyoming$11,269 to $16,469$35.99224

5 of 7 neighbors charge less to install. New Mexico comes in lowest at $10,569, and Wyoming highest at $11,269. Prices vary less than outage times: Nebraska logged 543 minutes in 2025, while here the figure was 273.

Figures come from BLS wages (May 2025), EIA gas data (March to August 2026), EIA propane prices (October 26, 2026), EIA outage records, EIA-861, FEMA. All states.