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Data through April 2026

Running cost · Computer Monitors · ENERGY STAR certified

DELL P2425DEc

At the standardized usage ENERGY STAR assumes, the DELL P2425DEc consumes 56 kWh a year — about $11 at the U.S. average electricity rate ($0.88 a month). Efficiency-wise it's unremarkable in a good way: within 25% of the median certified computer monitor (rank 993 of 1482). The same unit costs $6.94 a year in North Dakota but $26 in Hawaii — electricity rates, not the appliance, make the difference.

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

$11/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$0.88
Per day
Certified use
56 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
17.41 W
Sleep-mode power
0.5 W
11 kWh403 kWh
Where the DELL P2425DEc (▮) sits among all 1,482 certified computer monitors, by annual kWh

What it costs in every state

DELL P2425DEc: 56 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$9.79
Alaska27.4¢$15
Arizona15.5¢$8.70
Arkansas14.2¢$7.96
California35.3¢$20
Colorado16.5¢$9.30
Connecticut32.2¢$18
Delaware18.8¢$11
District of Columbia25.4¢$14
Florida15.4¢$8.65
Georgia15.4¢$8.64
Hawaiipriciest46.6¢$26
Idaho12.7¢$7.14
Illinois20.5¢$12
Indiana17.9¢$10
Iowa13.9¢$7.79
Kansas15.8¢$8.87
Kentucky15.0¢$8.45
Louisiana14.4¢$8.12
Maine28.4¢$16
Maryland22.1¢$12
Massachusetts29.4¢$17
Michigan21.4¢$12
Minnesota16.4¢$9.22
Mississippi16.8¢$9.42
Missouri14.0¢$7.88
Montana13.9¢$7.82
Nebraska13.3¢$7.47
Nevada14.3¢$8.04
New Hampshire27.2¢$15
New Jersey23.5¢$13
New Mexico15.2¢$8.52
New York29.4¢$17
North Carolina16.3¢$9.14
North Dakotacheapest12.3¢$6.94
Ohio19.5¢$11
Oklahoma13.3¢$7.48
Oregon15.8¢$8.87
Pennsylvania21.5¢$12
Rhode Island28.3¢$16
South Carolina17.1¢$9.59
South Dakota14.5¢$8.16
Tennessee14.9¢$8.40
Texas17.0¢$9.55
Utah13.3¢$7.47
Vermont24.6¢$14
Virginia17.4¢$9.77
Washington14.4¢$8.07
West Virginia16.1¢$9.03
Wisconsin19.2¢$11
Wyoming14.7¢$8.25

Certified models closest in efficiency

computer monitors within reach of 56 kWh/yr
ModelkWh/yr$/yr (US avg)
MSI 3CD956$11
ViewSonic VS1915156$11
LG 27BA65QB56$11
LG 27BA75QB56$11
Lenovo D22238QP056$11
ViewSonic VS18705most efficient56$11

Run your own numbers

Your rate, your numbers

Per day
Per month
$0.88
Per year
$11

56 kWh/yr × 18.8¢/kWh = $11/yr

Prefilled with this model's certified 56 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 P2425DEc use?
ENERGY STAR certifies the DELL P2425DEc at 56 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 P2425DEc cost to run per month?
About $0.88 a month at the U.S. average residential rate (18.8¢/kWh) — 3¢ a day, or $11 a year. Your state's rate moves this up or down; see the table above.
Is the DELL P2425DEc energy efficient?
It uses 25% more electricity than the median certified computer monitor.
What does the DELL P2425DEc cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $6.94 a year in North Dakota (12.3¢/kWh) and $26 in Hawaii (46.6¢/kWh).

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