What a humidifier costs to run in Michigan
Michigan homes use 158 kWh a year on a humidifier. Priced on top of the rest of the bill, that costs $22.20 to $39.04 a year across 7 published Michigan plans — a $16.84 gap. Checked September 2, 2026.
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Every priced plan, average
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Service Secondary Non-Transmitting Meter Rate (RSM)✓ cheapestflat rate | $22.20 | — | 15.3¢ |
| Residential Smart Hours Rate (RSH)flat rate | $22.20 | — | 15.3¢ |
| Residential Nighttime Savers Rate (RPM)flat rate | $22.20 | — | 15.3¢ |
| Residential Nighttime Savers Rate (RPM)time-of-use | $36.33 | +$14.13 | 24.2¢ |
| Residential Smart Hours Rate (RSH)time-of-use | $36.74 | +$14.54 | 24.5¢ |
| Residential Summer On-Peak Basic Service (RSP)time-of-use | $36.83 | +$14.63 | 24.5¢ |
| Residential Service Secondary Non-Transmitting Meter Rate (RSM)time-of-use · tiered | $39.04 | +$16.84 | 24.3¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- Lighter use — cheapest $9.24 (Residential Service Secondary Non-Transmitting Meter Rate (RSM)), dearest $16.28, a $7.04 spread
- Average — cheapest $22.20 (Residential Service Secondary Non-Transmitting Meter Rate (RSM)), dearest $39.04, a $16.84 spread
- Heavier use — cheapest $22.08 (Residential Service Secondary Non-Transmitting Meter Rate (RSM)), dearest $38.80, a $16.72 spread
What a humidifier costs here
Across 7 plans priced in Michigan, a humidifier adds $22.20 to $39.04 a year — $1.85 to $3.25 a month. The median plan puts a humidifier at $36.33 a year.
Cheapest for a humidifier: Residential Service Secondary Non-Transmitting Meter Rate (RSM), Consumers Energy Co. Dearest: Residential Service Secondary Non-Transmitting Meter Rate (RSM), Consumers Energy Co.
Those 158 kWh are billed at 14.0¢–24.7¢, against a 24.2¢ whole-bill average on the median plan: they land in the last tier the household reaches, so the average rate understates them by up to 0.5¢ per kWh.
What Michigan homes use
EIA's 2020 residential survey found 158 kWh a year across 189 sampled homes that run one, near the national 139 kWh. The middle half spans 66 kWh to 157 kWh, so a humidifier varies by 92 kWh between one household and another.
Portable and whole-home humidifiers. That average covers homes with a humidifier — 46% of homes here, against 24% nationally.
That makes a humidifier about 2% of the electricity a Michigan home uses. The remaining 8,212 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 66 kWh a year and pays $9.24 on the cheapest plan. One in the heavier quarter runs it for 157 kWh and pays $22.08 — $12.84 more for a humidifier on the same tariff.
Limits
A 2020 survey average for Michigan, not a measurement of any one home, priced against the 7 Michigan 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 42.9634, -85.6681.