WattCost

Data through June 2026

Running cost · Dehumidifiers · ENERGY STAR certified

Waykar CHWA150B

The Waykar CHWA150B is certified at 499 kWh per year, roughly $92 at the national average — though seasonal use means your real bill lands in a few months, not twelve. Efficiency-wise it's unremarkable in a good way: within 48% of the median certified dehumidifier (rank 360 of 519). The same unit costs $65 a year in Nevada but $263 in Hawaii — electricity rates, not the appliance, make the difference.

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

$92/yr

$19 · cheapest certified dehumidifiers$515 · priciest
Per month
$7.63
Per day
25¢
Certified use
499 kWh/yr
Type
Portable Dehumidifier
Capacity
49.52 pints/day
Efficiency (IEF)
2.01 L/kWh
105 kWh2,808 kWh
Where the Waykar CHWA150B (▮) sits among all 519 certified dehumidifiers, by annual kWh

What it costs in every state

Waykar CHWA150B: 499 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$82
Alaska28.2¢$141
Arizona15.2¢$76
Arkansas14.1¢$70
California34.7¢$173
Colorado17.1¢$85
Connecticut24.3¢$121
Delaware19.3¢$96
District of Columbia24.4¢$122
Florida15.1¢$75
Georgia16.4¢$82
Hawaiipriciest52.7¢$263
Idaho14.4¢$72
Illinois19.9¢$99
Indiana17.5¢$87
Iowa15.9¢$79
Kansas15.7¢$78
Kentucky14.3¢$71
Louisiana13.5¢$67
Maine29.6¢$148
Maryland21.8¢$109
Massachusetts29.6¢$148
Michigan23.0¢$115
Minnesota17.5¢$87
Mississippi14.9¢$74
Missouri16.2¢$81
Montana15.1¢$76
Nebraska13.3¢$66
Nevadacheapest13.1¢$65
New Hampshire27.0¢$135
New Jersey24.9¢$125
New Mexico15.1¢$75
New York29.5¢$147
North Carolina14.7¢$74
North Dakota14.1¢$70
Ohio19.2¢$96
Oklahoma14.3¢$72
Oregon16.3¢$81
Pennsylvania21.7¢$108
Rhode Island29.2¢$146
South Carolina15.6¢$78
South Dakota15.4¢$77
Tennessee14.1¢$70
Texas15.9¢$80
Utah13.4¢$67
Vermont24.4¢$122
Virginia17.2¢$86
Washington14.9¢$74
West Virginia15.4¢$77
Wisconsin19.6¢$98
Wyoming15.2¢$76

Certified models closest in efficiency

dehumidifiers within reach of 499 kWh/yr
ModelkWh/yr$/yr (US avg)
Waykar CHWA150E499$92
Waykar CHWA150PB499$92
Waykar CHWA150PE499$92
Multistar MDHP5079US500$92
AERIC AERD501P502$92
AERIC AERD501PF502$92

Run your own numbers

Your rate, your numbers

Per day
25¢
Per month
$7.63
Per year
$92

499 kWh/yr × 18.3¢/kWh = $92/yr

Prefilled with this model's certified 499 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 Waykar CHWA150B use?
ENERGY STAR certifies the Waykar CHWA150B at 499 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 Waykar CHWA150B cost to run per month?
About $7.63 a month at the U.S. average residential rate (18.3¢/kWh) — 25¢ a day, or $92 a year. Your state's rate moves this up or down; see the table above.
Is the Waykar CHWA150B energy efficient?
It uses 48% more electricity than the median certified dehumidifier.
What does the Waykar CHWA150B cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $65 a year in Nevada (13.1¢/kWh) and $263 in Hawaii (52.7¢/kWh).

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