WattCost

Data through April 2026

Running cost · Dehumidifiers · ENERGY STAR certified

COSTWAY ES10429US-WH

The COSTWAY ES10429US-WH is certified at 779 kWh per year, roughly $147 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 127% more than the median dehumidifier (rank 470 of 481) — so the state you live in matters more than usual. Where you live moves the bill from $96 a year in North Dakota to $363 in Hawaii.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$147/yr

$20 · cheapest certified dehumidifiers$529 · priciest
Per month
$12.22
Per day
40¢
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 481 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
Alabama17.4¢$136
Alaska27.4¢$213
Arizona15.5¢$121
Arkansas14.2¢$110
California35.3¢$275
Colorado16.5¢$129
Connecticut32.2¢$251
Delaware18.8¢$146
District of Columbia25.4¢$198
Florida15.4¢$120
Georgia15.4¢$120
Hawaiipriciest46.6¢$363
Idaho12.7¢$99
Illinois20.5¢$159
Indiana17.9¢$139
Iowa13.9¢$108
Kansas15.8¢$123
Kentucky15.0¢$117
Louisiana14.4¢$112
Maine28.4¢$221
Maryland22.1¢$172
Massachusetts29.4¢$229
Michigan21.4¢$167
Minnesota16.4¢$128
Mississippi16.8¢$131
Missouri14.0¢$109
Montana13.9¢$108
Nebraska13.3¢$103
Nevada14.3¢$111
New Hampshire27.2¢$212
New Jersey23.5¢$183
New Mexico15.2¢$118
New York29.4¢$229
North Carolina16.3¢$127
North Dakotacheapest12.3¢$96
Ohio19.5¢$152
Oklahoma13.3¢$104
Oregon15.8¢$123
Pennsylvania21.5¢$167
Rhode Island28.3¢$220
South Carolina17.1¢$133
South Dakota14.5¢$113
Tennessee14.9¢$116
Texas17.0¢$132
Utah13.3¢$104
Vermont24.6¢$191
Virginia17.4¢$135
Washington14.4¢$112
West Virginia16.1¢$125
Wisconsin19.2¢$150
Wyoming14.7¢$114

Certified models closest in efficiency

dehumidifiers within reach of 779 kWh/yr
ModelkWh/yr$/yr (US avg)
Wellsle YDL24Pmost efficient791$149
Aprilaire E100most efficient821$155
Santa Fe 4047300most efficient842$159
DEVERSE D025H-25Pt3886$167
Aprilaire E080most efficient632$119
Aprilaire E130most efficient926$174

Run your own numbers

Your rate, your numbers

Per day
40¢
Per month
$12.22
Per year
$147

779 kWh/yr × 18.8¢/kWh = $147/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 $12.22 a month at the U.S. average residential rate (18.8¢/kWh) — 40¢ a day, or $147 a year. Your state's rate moves this up or down; see the table above.
Is the COSTWAY ES10429US-WH energy efficient?
It uses 127% 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 $96 a year in North Dakota (12.3¢/kWh) and $363 in Hawaii (46.6¢/kWh).

Keep digging