WattCost

Data through April 2026

Running cost · Computer Monitors · ENERGY STAR certified

Acer PE140WU_z

The Acer PE140WU_z's certified consumption is 11 kWh per year, which prices out to about $2.09 at the national average rate — your hours of use scale that directly. That puts it in the most efficient tenth of every certified computer monitor — 75% less electricity than the median, ranked 1 of 1482. Where you live moves the bill from $1.37 a year in North Dakota to $5.18 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

$2.09/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$0.17
Per day
1¢
Certified use
11 kWh/yr
Screen size
14 in
Panel
TFT-LCD
On-mode power
3.01 W
Sleep-mode power
0.33 W
11 kWh403 kWh
Where the Acer PE140WU_z (▮) sits among all 1,482 certified computer monitors, by annual kWh

What it costs in every state

Acer PE140WU_z: 11 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$1.93
Alaska27.4¢$3.04
Arizona15.5¢$1.72
Arkansas14.2¢$1.57
California35.3¢$3.92
Colorado16.5¢$1.84
Connecticut32.2¢$3.58
Delaware18.8¢$2.09
District of Columbia25.4¢$2.82
Florida15.4¢$1.71
Georgia15.4¢$1.71
Hawaiipriciest46.6¢$5.18
Idaho12.7¢$1.41
Illinois20.5¢$2.27
Indiana17.9¢$1.99
Iowa13.9¢$1.54
Kansas15.8¢$1.75
Kentucky15.0¢$1.67
Louisiana14.4¢$1.60
Maine28.4¢$3.16
Maryland22.1¢$2.45
Massachusetts29.4¢$3.27
Michigan21.4¢$2.38
Minnesota16.4¢$1.82
Mississippi16.8¢$1.86
Missouri14.0¢$1.56
Montana13.9¢$1.54
Nebraska13.3¢$1.48
Nevada14.3¢$1.59
New Hampshire27.2¢$3.03
New Jersey23.5¢$2.61
New Mexico15.2¢$1.68
New York29.4¢$3.27
North Carolina16.3¢$1.81
North Dakotacheapest12.3¢$1.37
Ohio19.5¢$2.17
Oklahoma13.3¢$1.48
Oregon15.8¢$1.75
Pennsylvania21.5¢$2.39
Rhode Island28.3¢$3.14
South Carolina17.1¢$1.90
South Dakota14.5¢$1.61
Tennessee14.9¢$1.66
Texas17.0¢$1.89
Utah13.3¢$1.48
Vermont24.6¢$2.73
Virginia17.4¢$1.93
Washington14.4¢$1.60
West Virginia16.1¢$1.78
Wisconsin19.2¢$2.13
Wyoming14.7¢$1.63

Certified models closest in efficiency

computer monitors within reach of 11 kWh/yr
ModelkWh/yr$/yr (US avg)
HP HP E14 G4most efficient13$2.41
DELL P1424Hf13$2.53
VAIO VJ5VP141XXXXmost efficient14$2.69
Wacom One DTC14114$2.72
PLANAR PM16-S14$2.73
EIZO FlexScan FLTmost efficient15$2.75

Run your own numbers

Your rate, your numbers

Per day
1¢
Per month
$0.17
Per year
$2.07

11 kWh/yr × 18.8¢/kWh = $2.07/yr

Prefilled with this model's certified 11 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 Acer PE140WU_z use?
ENERGY STAR certifies the Acer PE140WU_z at 11 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 Acer PE140WU_z cost to run per month?
About $0.17 a month at the U.S. average residential rate (18.8¢/kWh) — 1¢ a day, or $2.09 a year. Your state's rate moves this up or down; see the table above.
Is the Acer PE140WU_z energy efficient?
It uses 75% less electricity than the median certified computer monitor, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Acer PE140WU_z cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $1.37 a year in North Dakota (12.3¢/kWh) and $5.18 in Hawaii (46.6¢/kWh).

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