WattCost

Data through June 2026

Running cost · Dehumidifiers · ENERGY STAR certified

COSTWAY ES10429US-WH

The COSTWAY ES10429US-WH is certified at 779 kWh per year, roughly $143 at the national average — though seasonal use means your real bill lands in a few months, not twelve. It sits near the bottom of the certified table — using 130% more than the median dehumidifier (rank 508 of 519) — so the state you live in matters more than usual. Where you live moves the bill from $102 a year in Nevada to $411 in Hawaii.

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$143/yr

$19 · cheapest certified dehumidifiers$515 · priciest
Per month
$11.91
Per day
39¢
Certified use
779 kWh/yr
Type
Portable Dehumidifier
Capacity
22.66 pints/day
Efficiency (IEF)
1.7 L/kWh
105 kWh2,808 kWh
Where the COSTWAY ES10429US-WH (▮) sits among all 519 certified dehumidifiers, by annual kWh

What it costs in every state

COSTWAY ES10429US-WH: 779 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$128
Alaska28.2¢$220
Arizona15.2¢$118
Arkansas14.1¢$110
California34.7¢$271
Colorado17.1¢$133
Connecticut24.3¢$189
Delaware19.3¢$150
District of Columbia24.4¢$190
Florida15.1¢$118
Georgia16.4¢$127
Hawaiipriciest52.7¢$411
Idaho14.4¢$112
Illinois19.9¢$155
Indiana17.5¢$136
Iowa15.9¢$124
Kansas15.7¢$122
Kentucky14.3¢$111
Louisiana13.5¢$105
Maine29.6¢$231
Maryland21.8¢$170
Massachusetts29.6¢$231
Michigan23.0¢$179
Minnesota17.5¢$136
Mississippi14.9¢$116
Missouri16.2¢$126
Montana15.1¢$118
Nebraska13.3¢$103
Nevadacheapest13.1¢$102
New Hampshire27.0¢$210
New Jersey24.9¢$194
New Mexico15.1¢$117
New York29.5¢$230
North Carolina14.7¢$115
North Dakota14.1¢$110
Ohio19.2¢$149
Oklahoma14.3¢$112
Oregon16.3¢$127
Pennsylvania21.7¢$169
Rhode Island29.2¢$228
South Carolina15.6¢$121
South Dakota15.4¢$120
Tennessee14.1¢$110
Texas15.9¢$124
Utah13.4¢$104
Vermont24.4¢$190
Virginia17.2¢$134
Washington14.9¢$116
West Virginia15.4¢$120
Wisconsin19.6¢$152
Wyoming15.2¢$119

Certified models closest in efficiency

dehumidifiers within reach of 779 kWh/yr
ModelkWh/yr$/yr (US avg)
Wellsle YDL24Pmost efficient791$145
Aprilaire E100most efficient821$151
Santa Fe 4047300most efficient842$154
DEVERSE D025H-25Pt3886$162
Aprilaire E080most efficient632$116
Aprilaire E130most efficient926$170

Run your own numbers

Your rate, your numbers

Per day
39¢
Per month
$11.91
Per year
$143

779 kWh/yr × 18.3¢/kWh = $143/yr

Prefilled with this model's certified 779 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE test basis for standardized annual runtime. Damp basements that run a unit year-round will exceed it; seasonal use will come in under.

Questions, answered with the data

How much electricity does the COSTWAY ES10429US-WH use?
ENERGY STAR certifies the COSTWAY ES10429US-WH at 779 kWh per year. The certified annual kWh comes from the DOE test basis for standardized annual runtime. Damp basements that run a unit year-round will exceed it; seasonal use will come in under.
How much does the COSTWAY ES10429US-WH cost to run per month?
About $11.91 a month at the U.S. average residential rate (18.3¢/kWh) — 39¢ a day, or $143 a year. Your state's rate moves this up or down; see the table above.
Is the COSTWAY ES10429US-WH energy efficient?
It uses 130% more electricity than the median certified dehumidifier, which puts it among the least efficient certified models.
What does the COSTWAY ES10429US-WH cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $102 a year in Nevada (13.1¢/kWh) and $411 in Hawaii (52.7¢/kWh).

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