How Colorado compares
Ranked by yearly saving against gas, Colorado is 22nd of 51. At U.S. average figures a heat pump saves $27 a year. Colorado has the 30th cheapest residential electricity of the 50 states and DC, near the middle, at 17.00¢/kWh, 7% below the U.S. average of 18.31¢.
With an estimated 6,000 heating degree days a year, winters here are moderate, and the calculator uses a seasonal COP of 2.8.
Against propane the heat pump saves $671 a year, against heating oil it saves $1,432 a year, and against electric baseboard heat it saves $1,470 a year.
| Heating now | Now, per year | Heat pump | Difference |
|---|---|---|---|
| Natural gas furnace | $918 | $817 | $101 |
| Propane furnace | $1,487 | $816 | $671 |
| Oil furnace | $2,248 | $816 | $1,432 |
| Electric baseboard | $2,287 | $817 | $1,470 |
Six of its seven neighbors do better against gas: Kansas, Nebraska, New Mexico, Oklahoma, Utah and Wyoming, led by Utah at $268 a year saved.
More for Colorado
- EV charging cost in Colorado vs gas: an EV saves $1,129 a year on fuel.
- Solar payback in Colorado: a typical system pays back in 10.8 years.
What these numbers assume
- A heating load estimated from about 6,000 heating degree days a year: 540 therms of gas, 590 gallons of propane, 414 gallons of oil or 13,453 kWh of baseboard heat.
- Natural gas at $1.70/therm, the U.S. city average for September 2026. Gas prices vary a lot by state and utility, so enter the price per therm from your bill.
- Propane at $2.52 and heating oil at $5.43 a gallon, EIA forecasts for winter 2026–27.
- Furnaces 85% efficient (oil 80%), and a heat pump with a seasonal COP of 2.8.
- No federal tax credit: Section 25C ended for equipment placed in service after December 31, 2025.
Change any of them in the calculator above to match your own bills. The formulas are on the main heat pump calculator.
Sources
- Electricity price: EIA Electric Power Monthly, Table 5.6.A (July 2026 data).
- Natural gas: BLS U.S. city average, September 2026.
- Propane and heating oil: EIA Short-Term Energy Outlook winter forecast, October 2026.
- Heating degree days: MeterMath rounded estimate for the state.
- Tax credit status: Public Law 119-21.