WattCost

Data through June 2026

Running cost · Dehumidifiers · ENERGY STAR certified

Dr. Prepare DDH20LF

Under the DOE test basis, the Dr. Prepare DDH20LF draws 181 kWh — about $33 at the U.S. average rate, concentrated in the months you actually run it. That puts it in the most efficient tenth of every certified dehumidifier — 46% less electricity than the median, ranked 40 of 519. Where you live moves the bill from $24 a year in Nevada to $95 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

$33/yr

$19 · cheapest certified dehumidifiers$515 · priciest
Per month
$2.77
Per day
9¢
Certified use
181 kWh/yr
Type
Portable Dehumidifier
Capacity
16 pints/day
Efficiency (IEF)
1.89 L/kWh
105 kWh2,808 kWh
Where the Dr. Prepare DDH20LF (▮) sits among all 519 certified dehumidifiers, by annual kWh

What it costs in every state

Dr. Prepare DDH20LF: 181 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$30
Alaska28.2¢$51
Arizona15.2¢$27
Arkansas14.1¢$26
California34.7¢$63
Colorado17.1¢$31
Connecticut24.3¢$44
Delaware19.3¢$35
District of Columbia24.4¢$44
Florida15.1¢$27
Georgia16.4¢$30
Hawaiipriciest52.7¢$95
Idaho14.4¢$26
Illinois19.9¢$36
Indiana17.5¢$32
Iowa15.9¢$29
Kansas15.7¢$28
Kentucky14.3¢$26
Louisiana13.5¢$24
Maine29.6¢$54
Maryland21.8¢$40
Massachusetts29.6¢$54
Michigan23.0¢$42
Minnesota17.5¢$32
Mississippi14.9¢$27
Missouri16.2¢$29
Montana15.1¢$27
Nebraska13.3¢$24
Nevadacheapest13.1¢$24
New Hampshire27.0¢$49
New Jersey24.9¢$45
New Mexico15.1¢$27
New York29.5¢$53
North Carolina14.7¢$27
North Dakota14.1¢$26
Ohio19.2¢$35
Oklahoma14.3¢$26
Oregon16.3¢$30
Pennsylvania21.7¢$39
Rhode Island29.2¢$53
South Carolina15.6¢$28
South Dakota15.4¢$28
Tennessee14.1¢$25
Texas15.9¢$29
Utah13.4¢$24
Vermont24.4¢$44
Virginia17.2¢$31
Washington14.9¢$27
West Virginia15.4¢$28
Wisconsin19.6¢$35
Wyoming15.2¢$28

Certified models closest in efficiency

dehumidifiers within reach of 181 kWh/yr
ModelkWh/yr$/yr (US avg)
CONCETTA AS-CSJ72XK-4D5WT-OLmost efficient181$33
DUMOS AS-CSJ72XK-4D5WT-OLmost efficient181$33
edx AS-CSJ72XK-4D5WT-OLmost efficient181$33
Gianna AS-CSJ72XK-4D5WT-OLmost efficient181$33
HUMILABS OL20-D068Qmost efficient181$33
IULULU AS-CSJ72XK-4D5WT-OLmost efficient181$33

Run your own numbers

Your rate, your numbers

Per day
9¢
Per month
$2.77
Per year
$33

181 kWh/yr × 18.3¢/kWh = $33/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 Dr. Prepare DDH20LF use?
ENERGY STAR certifies the Dr. Prepare DDH20LF 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 Dr. Prepare DDH20LF cost to run per month?
About $2.77 a month at the U.S. average residential rate (18.3¢/kWh) — 9¢ a day, or $33 a year. Your state's rate moves this up or down; see the table above.
Is the Dr. Prepare DDH20LF energy efficient?
It uses 46% less electricity than the median certified dehumidifier, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Dr. Prepare DDH20LF cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $24 a year in Nevada (13.1¢/kWh) and $95 in Hawaii (52.7¢/kWh).

Keep digging