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Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

DELL P2426HEb

At the standardized usage ENERGY STAR assumes, the DELL P2426HEb consumes 42 kWh a year — about $7.65 at the U.S. average electricity rate ($0.64 a month). That's close to the middle of the certified pack — about 7% under the median computer monitor, ranked 591 of 1530. The same unit costs $5.47 a year in Nevada but $22 in Hawaii — electricity rates, not the appliance, make the difference.

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

$7.65/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.64
Per day
2¢
Certified use
42 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
12.3 W
Sleep-mode power
0.7 W
11 kWh403 kWh
Where the DELL P2426HEb (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

DELL P2426HEb: 42 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$6.84
Alaska28.2¢$12
Arizona15.2¢$6.33
Arkansas14.1¢$5.89
California34.7¢$14
Colorado17.1¢$7.14
Connecticut24.3¢$10
Delaware19.3¢$8.04
District of Columbia24.4¢$10
Florida15.1¢$6.30
Georgia16.4¢$6.82
Hawaiipriciest52.7¢$22
Idaho14.4¢$5.99
Illinois19.9¢$8.29
Indiana17.5¢$7.30
Iowa15.9¢$6.64
Kansas15.7¢$6.55
Kentucky14.3¢$5.95
Louisiana13.5¢$5.63
Maine29.6¢$12
Maryland21.8¢$9.11
Massachusetts29.6¢$12
Michigan23.0¢$9.59
Minnesota17.5¢$7.31
Mississippi14.9¢$6.20
Missouri16.2¢$6.76
Montana15.1¢$6.31
Nebraska13.3¢$5.53
Nevadacheapest13.1¢$5.47
New Hampshire27.0¢$11
New Jersey24.9¢$10
New Mexico15.1¢$6.28
New York29.5¢$12
North Carolina14.7¢$6.15
North Dakota14.1¢$5.89
Ohio19.2¢$8.00
Oklahoma14.3¢$5.98
Oregon16.3¢$6.81
Pennsylvania21.7¢$9.06
Rhode Island29.2¢$12
South Carolina15.6¢$6.48
South Dakota15.4¢$6.41
Tennessee14.1¢$5.87
Texas15.9¢$6.65
Utah13.4¢$5.58
Vermont24.4¢$10
Virginia17.2¢$7.18
Washington14.9¢$6.22
West Virginia15.4¢$6.44
Wisconsin19.6¢$8.16
Wyoming15.2¢$6.36

Certified models closest in efficiency

computer monitors within reach of 42 kWh/yr
ModelkWh/yr$/yr (US avg)
ASUS BE24ECSNK42$7.65
Acer CB27242$7.64
MSI PRO MP252 E242$7.64
Acer V247Y42$7.65
LG 27BF550B42$7.64
MSI PRO MP275 E1442$7.64

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.64
Per year
$7.70

42 kWh/yr × 18.3¢/kWh = $7.70/yr

Prefilled with this model's certified 42 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 DELL P2426HEb use?
ENERGY STAR certifies the DELL P2426HEb at 42 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 DELL P2426HEb cost to run per month?
About $0.64 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $7.65 a year. Your state's rate moves this up or down; see the table above.
Is the DELL P2426HEb energy efficient?
It uses 7% less electricity than the median certified computer monitor.
What does the DELL P2426HEb cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $5.47 a year in Nevada (13.1¢/kWh) and $22 in Hawaii (52.7¢/kWh).

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