WattCost

Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

DELL U2424Hb

At the standardized usage ENERGY STAR assumes, the DELL U2424Hb consumes 36 kWh a year — about $6.52 at the U.S. average electricity rate ($0.54 a month). That's 21% less than the median certified computer monitor, placing it comfortably in the efficient third of the field (260 of 1530). Where you live moves the bill from $4.66 a year in Nevada to $19 in Hawaii.

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

$6.52/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.54
Per day
2¢
Certified use
36 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
11.05 W
Sleep-mode power
0.29 W
11 kWh403 kWh
Where the DELL U2424Hb (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

DELL U2424Hb: 36 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$5.83
Alaska28.2¢$10
Arizona15.2¢$5.39
Arkansas14.1¢$5.02
California34.7¢$12
Colorado17.1¢$6.09
Connecticut24.3¢$8.64
Delaware19.3¢$6.85
District of Columbia24.4¢$8.67
Florida15.1¢$5.37
Georgia16.4¢$5.81
Hawaiipriciest52.7¢$19
Idaho14.4¢$5.11
Illinois19.9¢$7.07
Indiana17.5¢$6.22
Iowa15.9¢$5.66
Kansas15.7¢$5.58
Kentucky14.3¢$5.07
Louisiana13.5¢$4.79
Maine29.6¢$11
Maryland21.8¢$7.76
Massachusetts29.6¢$11
Michigan23.0¢$8.17
Minnesota17.5¢$6.22
Mississippi14.9¢$5.29
Missouri16.2¢$5.76
Montana15.1¢$5.38
Nebraska13.3¢$4.71
Nevadacheapest13.1¢$4.66
New Hampshire27.0¢$9.60
New Jersey24.9¢$8.86
New Mexico15.1¢$5.35
New York29.5¢$10
North Carolina14.7¢$5.24
North Dakota14.1¢$5.02
Ohio19.2¢$6.82
Oklahoma14.3¢$5.09
Oregon16.3¢$5.80
Pennsylvania21.7¢$7.72
Rhode Island29.2¢$10
South Carolina15.6¢$5.52
South Dakota15.4¢$5.46
Tennessee14.1¢$5.00
Texas15.9¢$5.66
Utah13.4¢$4.75
Vermont24.4¢$8.68
Virginia17.2¢$6.12
Washington14.9¢$5.30
West Virginia15.4¢$5.49
Wisconsin19.6¢$6.95
Wyoming15.2¢$5.41

Certified models closest in efficiency

computer monitors within reach of 36 kWh/yr
ModelkWh/yr$/yr (US avg)
Lenovo A25238QP1most efficient36$6.52
ViewSonic VS20656most efficient36$6.51
DELL SE2426H36$6.52
HP E24 G536$6.52
Lenovo C20238FS036$6.52
INSYS HY2-215LD-236$6.53

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.55
Per year
$6.60

36 kWh/yr × 18.3¢/kWh = $6.60/yr

Prefilled with this model's certified 36 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 U2424Hb use?
ENERGY STAR certifies the DELL U2424Hb at 36 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 U2424Hb cost to run per month?
About $0.54 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $6.52 a year. Your state's rate moves this up or down; see the table above.
Is the DELL U2424Hb energy efficient?
It uses 21% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
What does the DELL U2424Hb cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $4.66 a year in Nevada (13.1¢/kWh) and $19 in Hawaii (52.7¢/kWh).

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