WattCost

Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

Lenovo D22e-20

The Lenovo D22e-20's certified consumption is 38 kWh per year, which prices out to about $7.01 at the national average rate — your hours of use scale that directly. That's 15% less than the median certified computer monitor, placing it comfortably in the efficient third of the field (409 of 1530). The same unit costs $5.01 a year in Nevada but $20 in Hawaii — electricity rates, not the appliance, make the difference.

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

$7.01/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.58
Per day
2¢
Certified use
38 kWh/yr
Screen size
21.5 in
Panel
VA LCD
On-mode power
12.17 W
Sleep-mode power
0.16 W
11 kWh403 kWh
Where the Lenovo D22e-20 (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

Lenovo D22e-20: 38 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$6.27
Alaska28.2¢$11
Arizona15.2¢$5.80
Arkansas14.1¢$5.40
California34.7¢$13
Colorado17.1¢$6.55
Connecticut24.3¢$9.30
Delaware19.3¢$7.37
District of Columbia24.4¢$9.32
Florida15.1¢$5.77
Georgia16.4¢$6.25
Hawaiipriciest52.7¢$20
Idaho14.4¢$5.49
Illinois19.9¢$7.60
Indiana17.5¢$6.69
Iowa15.9¢$6.09
Kansas15.7¢$6.00
Kentucky14.3¢$5.45
Louisiana13.5¢$5.16
Maine29.6¢$11
Maryland21.8¢$8.35
Massachusetts29.6¢$11
Michigan23.0¢$8.79
Minnesota17.5¢$6.70
Mississippi14.9¢$5.69
Missouri16.2¢$6.20
Montana15.1¢$5.79
Nebraska13.3¢$5.06
Nevadacheapest13.1¢$5.01
New Hampshire27.0¢$10
New Jersey24.9¢$9.54
New Mexico15.1¢$5.76
New York29.5¢$11
North Carolina14.7¢$5.63
North Dakota14.1¢$5.40
Ohio19.2¢$7.33
Oklahoma14.3¢$5.48
Oregon16.3¢$6.24
Pennsylvania21.7¢$8.31
Rhode Island29.2¢$11
South Carolina15.6¢$5.94
South Dakota15.4¢$5.87
Tennessee14.1¢$5.38
Texas15.9¢$6.09
Utah13.4¢$5.11
Vermont24.4¢$9.34
Virginia17.2¢$6.58
Washington14.9¢$5.70
West Virginia15.4¢$5.90
Wisconsin19.6¢$7.48
Wyoming15.2¢$5.82

Certified models closest in efficiency

computer monitors within reach of 38 kWh/yr
ModelkWh/yr$/yr (US avg)
PHILIPS 240B7Q38$7.01
Lenovo A24245FP038$7.02
Lenovo C23238QE038$7.00
Lenovo C25238FT038$7.02
ASUS VY279HG3most efficient38$6.99
ViewSonic VS20017most efficient38$7.02

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.58
Per year
$6.97

38 kWh/yr × 18.3¢/kWh = $6.97/yr

Prefilled with this model's certified 38 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 Lenovo D22e-20 use?
ENERGY STAR certifies the Lenovo D22e-20 at 38 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 Lenovo D22e-20 cost to run per month?
About $0.58 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $7.01 a year. Your state's rate moves this up or down; see the table above.
Is the Lenovo D22e-20 energy efficient?
It uses 15% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
What does the Lenovo D22e-20 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $5.01 a year in Nevada (13.1¢/kWh) and $20 in Hawaii (52.7¢/kWh).

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