WattCost

Data through June 2026

Running cost · Clothes Washers · ENERGY STAR certified

LG SIGNATURE WM9901H*A

The LG SIGNATURE WM9901H*A is certified at 108 kWh per year over the DOE test's 234 annual cycles, which comes to about $20 a year — call it 8¢ every time you run it. Efficiency-wise it's unremarkable in a good way: within 2% of the median certified clothes washer (rank 157 of 344). Where you live moves the bill from $14 a year in Nevada to $57 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria. Electricity is only part of the story for a clothes washer — check the water figure in the specs below.

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

$20/yr

$7.15 · cheapest certified clothes washers$57 · priciest
Per month
$1.65
Per day
5¢
Certified use
108 kWh/yr
Load configuration
Front Load
Drum volume
5.8 cu ft
IMEF
3.2
Annual water use
4,418 gal/yr
39 kWh311 kWh
Where the LG SIGNATURE WM9901H*A (▮) sits among all 344 certified clothes washers, by annual kWh

What it costs in every state

LG SIGNATURE WM9901H*A: 108 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$18
Alaska28.2¢$30
Arizona15.2¢$16
Arkansas14.1¢$15
California34.7¢$38
Colorado17.1¢$19
Connecticut24.3¢$26
Delaware19.3¢$21
District of Columbia24.4¢$26
Florida15.1¢$16
Georgia16.4¢$18
Hawaiipriciest52.7¢$57
Idaho14.4¢$16
Illinois19.9¢$21
Indiana17.5¢$19
Iowa15.9¢$17
Kansas15.7¢$17
Kentucky14.3¢$15
Louisiana13.5¢$15
Maine29.6¢$32
Maryland21.8¢$24
Massachusetts29.6¢$32
Michigan23.0¢$25
Minnesota17.5¢$19
Mississippi14.9¢$16
Missouri16.2¢$18
Montana15.1¢$16
Nebraska13.3¢$14
Nevadacheapest13.1¢$14
New Hampshire27.0¢$29
New Jersey24.9¢$27
New Mexico15.1¢$16
New York29.5¢$32
North Carolina14.7¢$16
North Dakota14.1¢$15
Ohio19.2¢$21
Oklahoma14.3¢$15
Oregon16.3¢$18
Pennsylvania21.7¢$23
Rhode Island29.2¢$32
South Carolina15.6¢$17
South Dakota15.4¢$17
Tennessee14.1¢$15
Texas15.9¢$17
Utah13.4¢$14
Vermont24.4¢$26
Virginia17.2¢$19
Washington14.9¢$16
West Virginia15.4¢$17
Wisconsin19.6¢$21
Wyoming15.2¢$16

Certified models closest in efficiency

clothes washers within reach of 108 kWh/yr
ModelkWh/yr$/yr (US avg)
Haier QFW150S*N108$20
LG SIGNATURE WM9700H*Amost efficient108$20
LG SIGNATURE WM9900H*Amost efficient108$20
LG SIGNATURE WM9998H*Amost efficient108$20
Avanti FLW22V0W110$20
Beko WFTV10733XC106$19

Run your own numbers

Your rate, your numbers

Per day
5¢
Per month
$1.65
Per year
$20

108 kWh/yr × 18.3¢/kWh = $20/yr

Prefilled with this model's certified 108 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh assumes 234 wash cycles per year (the DOE standard, about 4–5 loads a week) and includes water-heating energy.

Questions, answered with the data

How much electricity does the LG SIGNATURE WM9901H*A use?
ENERGY STAR certifies the LG SIGNATURE WM9901H*A at 108 kWh per year. The certified annual kWh assumes 234 wash cycles per year (the DOE standard, about 4–5 loads a week) and includes water-heating energy.
How much does the LG SIGNATURE WM9901H*A cost to run per month?
About $1.65 a month at the U.S. average residential rate (18.3¢/kWh) — 5¢ a day, or $20 a year. Your state's rate moves this up or down; see the table above.
Is the LG SIGNATURE WM9901H*A energy efficient?
It uses 2% less electricity than the median certified clothes washer. It also meets ENERGY STAR's Most Efficient criteria.
What does the LG SIGNATURE WM9901H*A cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $14 a year in Nevada (13.1¢/kWh) and $57 in Hawaii (52.7¢/kWh).
What does one load cost with the LG SIGNATURE WM9901H*A?
Roughly 8¢ per cycle at the U.S. average rate, based on the DOE test's 234 cycles a year.

Keep digging