Why the Same Clothes Dryer Costs 4x More by State

Run the median ENERGY STAR certified electric clothes dryer in North Dakota and it costs about $74.96 a year. Run the identical machine in Hawaii and it costs about $282.98 — a 3.8x difference driven entirely by the electricity rate, not the dryer itself.

Why dryers are so sensitive to where you live

Clothes dryers fall into what WattCost's methodology calls a cyclical duty class — the certified annual kWh figure assumes 283 drying cycles a year, the DOE test standard. Unlike an always-on refrigerator, a dryer's total energy use scales directly with how often you run it and how much electricity costs where you live, since the appliance itself does the same amount of work every cycle regardless of location.

That's why state electricity rates move the needle so much for this category specifically. The formula is simple — annual kWh × state rate ÷ 100 — but a rate that swings from 12.35¢/kWh in North Dakota to 46.62¢/kWh in Hawaii means the same physical machine produces wildly different bills.

The cheapest and priciest states to run a dryer

At the median certified dryer's energy use, here's what the same machine costs across a sample of states:

• North Dakota — $74.96/year (12.35¢/kWh), the cheapest state in the country.
• Idaho — $77.09/year (12.70¢/kWh).
• Nebraska — $80.61/year (13.28¢/kWh).
• Connecticut — $195.70/year (32.24¢/kWh).
• California — $213.97/year (35.25¢/kWh).
• Hawaii — $282.98/year (46.62¢/kWh), the most expensive state in the country.

See the complete ranking of the priciest states to run a clothes dryer for all 50 states plus DC.

The machine still matters — a lot

State rate isn't the only lever. Certified electric dryers range from about 122 kWh a year (heat-pump models like the Bosch WQB245AXUC) up to 687 kWh a year for standard vented models — roughly a 5x spread on the appliance side alone. Heat-pump dryers dry clothes by recirculating and dehumidifying air rather than venting heated air outside, which uses substantially less energy per cycle. See the most efficient certified electric clothes dryers for the full list.

Stack both effects together and the range gets extreme: a heat-pump dryer in North Dakota can cost well under $30 a year to run, while a standard vented dryer in Hawaii can cost several hundred — for functionally the same job, drying clothes.

What this means if you're shopping

If you live in a high-rate state, the efficiency of the specific model you buy matters more, dollar for dollar, than it would in a cheap-electricity state — the same percentage efficiency gain is worth more money. Note also that only electric dryers appear in this data; a gas dryer's running cost is mostly gas, not electricity, so a kWh comparison wouldn't apply.

FAQ

Why does the same dryer cost so differently in different states? Because a dryer's annual energy use is fixed by the DOE test cycle count, so total cost scales almost entirely with the electricity rate where you live.

How much do heat-pump dryers actually save? Certified heat-pump dryer models use roughly 80% less energy than the least efficient standard vented models in the certified dataset — about 122 kWh a year versus up to 687 kWh.

Does a gas dryer show up in this comparison? No — gas dryers are excluded from WattCost's electric dryer data because their operating cost is mostly gas, not electricity.

What's the DOE test basis for dryer energy figures? 283 drying cycles a year, per the methodology — roughly consistent with a household doing about 5–6 loads a week.

Where does my state rank? See the priciest states to run a clothes dryer for the full state-by-state list, or read how every appliance category ranks by cost.