WattCost

Data through April 2026

Running cost · Dehumidifiers · ENERGY STAR certified

Wellsle PD21MA

The Wellsle PD21MA is certified at 181 kWh per year, roughly $34 at the national average — though seasonal use means your real bill lands in a few months, not twelve. Compared with the median certified dehumidifier, it uses 47% less electricity — rank 53 out of 481. The same unit costs $22 a year in North Dakota but $84 in Hawaii — electricity rates, not the appliance, make the difference. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

$34/yr

$20 · cheapest certified dehumidifiers$529 · priciest
Per month
$2.84
Per day
9¢
Certified use
181 kWh/yr
Type
Portable Dehumidifier
Capacity
16 pints/day
Efficiency (IEF)
1.9 L/kWh
105 kWh2,808 kWh
Where the Wellsle PD21MA (▮) sits among all 481 certified dehumidifiers, by annual kWh

What it costs in every state

Wellsle PD21MA: 181 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$32
Alaska27.4¢$50
Arizona15.5¢$28
Arkansas14.2¢$26
California35.3¢$64
Colorado16.5¢$30
Connecticut32.2¢$58
Delaware18.8¢$34
District of Columbia25.4¢$46
Florida15.4¢$28
Georgia15.4¢$28
Hawaiipriciest46.6¢$84
Idaho12.7¢$23
Illinois20.5¢$37
Indiana17.9¢$32
Iowa13.9¢$25
Kansas15.8¢$29
Kentucky15.0¢$27
Louisiana14.4¢$26
Maine28.4¢$51
Maryland22.1¢$40
Massachusetts29.4¢$53
Michigan21.4¢$39
Minnesota16.4¢$30
Mississippi16.8¢$30
Missouri14.0¢$25
Montana13.9¢$25
Nebraska13.3¢$24
Nevada14.3¢$26
New Hampshire27.2¢$49
New Jersey23.5¢$43
New Mexico15.2¢$27
New York29.4¢$53
North Carolina16.3¢$29
North Dakotacheapest12.3¢$22
Ohio19.5¢$35
Oklahoma13.3¢$24
Oregon15.8¢$29
Pennsylvania21.5¢$39
Rhode Island28.3¢$51
South Carolina17.1¢$31
South Dakota14.5¢$26
Tennessee14.9¢$27
Texas17.0¢$31
Utah13.3¢$24
Vermont24.6¢$44
Virginia17.4¢$31
Washington14.4¢$26
West Virginia16.1¢$29
Wisconsin19.2¢$35
Wyoming14.7¢$27

Certified models closest in efficiency

dehumidifiers within reach of 181 kWh/yr
ModelkWh/yr$/yr (US avg)
CONCETTA AS-CSJ72XK-4D5WT-OLmost efficient181$34
Dr. Prepare DDH20LFmost efficient181$34
DUMOS AS-CSJ72XK-4D5WT-OLmost efficient181$34
edx AS-CSJ72XK-4D5WT-OLmost efficient181$34
Gianna AS-CSJ72XK-4D5WT-OLmost efficient181$34
HUMILABS OL20-D068Qmost efficient181$34

Run your own numbers

Your rate, your numbers

Per day
9¢
Per month
$2.84
Per year
$34

181 kWh/yr × 18.8¢/kWh = $34/yr

Prefilled with this model's certified 181 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 Wellsle PD21MA use?
ENERGY STAR certifies the Wellsle PD21MA at 181 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 Wellsle PD21MA cost to run per month?
About $2.84 a month at the U.S. average residential rate (18.8¢/kWh) — 9¢ a day, or $34 a year. Your state's rate moves this up or down; see the table above.
Is the Wellsle PD21MA energy efficient?
It uses 47% less electricity than the median certified dehumidifier, placing it in the efficient third of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Wellsle PD21MA cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $22 a year in North Dakota (12.3¢/kWh) and $84 in Hawaii (46.6¢/kWh).

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