What a humidifier costs to run in Colorado
Colorado homes use 186 kWh a year on a humidifier. Priced on top of the rest of the bill, that costs $13.80 to $30.40 a year across 5 published Colorado plans — a $16.60 gap. Checked September 2, 2026.
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Every priced plan, average
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Demand - Time Differentiated Rates (Schedule RD-TDR)✓ cheapestdemand charge | $13.80 | — | 8.2¢ |
| Residential Demand Service (Schedule RD)demand charge | $18.10 | +$4.30 | 12.0¢ |
| Residential Energy Time Of Use (Schedule RE-TOU)time-of-use | $28.63 | +$14.83 | 16.6¢ |
| Residential Service (Schedule R)time-of-use | $30.08 | +$16.28 | 17.3¢ |
| Residential General Service Opt-Out (Schedule R-OO)time-of-use | $30.40 | +$16.60 | 17.6¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- Lighter use — cheapest $3.70 (Residential Demand - Time Differentiated Rates (Schedule RD-TDR)), dearest $8.04, a $4.34 spread
- Average — cheapest $13.80 (Residential Demand - Time Differentiated Rates (Schedule RD-TDR)), dearest $30.40, a $16.60 spread
- Heavier use — cheapest $18.93 (Residential Demand - Time Differentiated Rates (Schedule RD-TDR)), dearest $41.76, a $22.83 spread
What a humidifier costs here
Across 5 plans priced in Colorado, a humidifier adds $13.80 to $30.40 a year — $1.15 to $2.53 a month. The median plan puts a humidifier at $28.63 a year.
Cheapest for a humidifier: Residential Demand - Time Differentiated Rates (Schedule RD-TDR), Public Service Co of Colorado. Dearest: Residential General Service Opt-Out (Schedule R-OO), Public Service Co of Colorado.
Those 186 kWh are billed at 7.4¢–16.3¢, against a 16.6¢ whole-bill average on the median plan, so on these plans the two rates are close.
What Colorado homes use
EIA's 2020 residential survey found 186 kWh a year across 149 sampled homes that run one, 1.34× the national 139 kWh. The middle half spans 50 kWh to 256 kWh, so a humidifier varies by 206 kWh between one household and another.
Portable and whole-home humidifiers. That average covers homes with a humidifier — 40% of homes here, against 24% nationally.
That makes a humidifier about 2% of the electricity a Colorado home uses. The remaining 7,958 kWh is what a humidifier is billed on top of, and on a tiered or time-of-use plan that is what sets the rate it meets.
Light and heavy use of a humidifier
A household in the lighter quarter runs a humidifier for 50 kWh a year and pays $3.70 on the cheapest plan. One in the heavier quarter runs it for 256 kWh and pays $18.93 — $15.23 more for a humidifier on the same tariff.
Limits
A 2020 survey average for Colorado, not a measurement of any one home, priced against the 5 Colorado tariffs WattClear has ingested — not every plan sold there.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 39.7392, -104.9903.