WattCost

Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

WACOM DTH135

At the standardized usage ENERGY STAR assumes, the WACOM DTH135 consumes 21 kWh a year — about $3.82 at the U.S. average electricity rate ($0.32 a month). That puts it in the most efficient tenth of every certified computer monitor — 54% less electricity than the median, ranked 47 of 1530. The same unit costs $2.73 a year in Nevada but $11 in Hawaii — electricity rates, not the appliance, make the difference.

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

$3.82/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.32
Per day
1¢
Certified use
21 kWh/yr
Screen size
13.3 in
Panel
OLED
On-mode power
5.12 W
Sleep-mode power
0.9 W
11 kWh403 kWh
Where the WACOM DTH135 (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

WACOM DTH135: 21 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$3.42
Alaska28.2¢$5.88
Arizona15.2¢$3.17
Arkansas14.1¢$2.94
California34.7¢$7.24
Colorado17.1¢$3.57
Connecticut24.3¢$5.07
Delaware19.3¢$4.02
District of Columbia24.4¢$5.09
Florida15.1¢$3.15
Georgia16.4¢$3.41
Hawaiipriciest52.7¢$11
Idaho14.4¢$3.00
Illinois19.9¢$4.15
Indiana17.5¢$3.65
Iowa15.9¢$3.32
Kansas15.7¢$3.28
Kentucky14.3¢$2.97
Louisiana13.5¢$2.81
Maine29.6¢$6.17
Maryland21.8¢$4.55
Massachusetts29.6¢$6.17
Michigan23.0¢$4.79
Minnesota17.5¢$3.65
Mississippi14.9¢$3.10
Missouri16.2¢$3.38
Montana15.1¢$3.16
Nebraska13.3¢$2.76
Nevadacheapest13.1¢$2.73
New Hampshire27.0¢$5.63
New Jersey24.9¢$5.20
New Mexico15.1¢$3.14
New York29.5¢$6.15
North Carolina14.7¢$3.07
North Dakota14.1¢$2.94
Ohio19.2¢$4.00
Oklahoma14.3¢$2.99
Oregon16.3¢$3.40
Pennsylvania21.7¢$4.53
Rhode Island29.2¢$6.09
South Carolina15.6¢$3.24
South Dakota15.4¢$3.20
Tennessee14.1¢$2.93
Texas15.9¢$3.32
Utah13.4¢$2.79
Vermont24.4¢$5.10
Virginia17.2¢$3.59
Washington14.9¢$3.11
West Virginia15.4¢$3.22
Wisconsin19.6¢$4.08
Wyoming15.2¢$3.18

Certified models closest in efficiency

computer monitors within reach of 21 kWh/yr
ModelkWh/yr$/yr (US avg)
MSI PRO MP165 E621$3.85
ASUS MB16A21$3.86
ViewSonic VS19906most efficient21$3.79
ViewSonic VS1817221$3.78
ASUS VT16921$3.77
ASUS MB16AHV21$3.88

Run your own numbers

Your rate, your numbers

Per day
1¢
Per month
$0.32
Per year
$3.85

21 kWh/yr × 18.3¢/kWh = $3.85/yr

Prefilled with this model's certified 21 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh (TEC) assumes the monitor is on 35% of the day and asleep the other 65%, per the ENERGY STAR test basis.

Questions, answered with the data

How much electricity does the WACOM DTH135 use?
ENERGY STAR certifies the WACOM DTH135 at 21 kWh per year. The certified annual kWh (TEC) assumes the monitor is on 35% of the day and asleep the other 65%, per the ENERGY STAR test basis.
How much does the WACOM DTH135 cost to run per month?
About $0.32 a month at the U.S. average residential rate (18.3¢/kWh) — 1¢ a day, or $3.82 a year. Your state's rate moves this up or down; see the table above.
Is the WACOM DTH135 energy efficient?
It uses 54% less electricity than the median certified computer monitor, placing it in the top 10% of certified models.
What does the WACOM DTH135 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $2.73 a year in Nevada (13.1¢/kWh) and $11 in Hawaii (52.7¢/kWh).

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