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Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank)

At the standardized usage ENERGY STAR assumes, the Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) consumes 42 kWh a year — about $7.75 at the U.S. average electricity rate ($0.65 a month). Efficiency-wise it's unremarkable in a good way: within 6% of the median certified computer monitor (rank 627 of 1530). Where you live moves the bill from $5.54 a year in Nevada to $22 in Hawaii.

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

$7.75/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.65
Per day
2¢
Certified use
42 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
13.47 W
Sleep-mode power
0.17 W
11 kWh403 kWh
Where the Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank): 42 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$6.93
Alaska28.2¢$12
Arizona15.2¢$6.41
Arkansas14.1¢$5.97
California34.7¢$15
Colorado17.1¢$7.24
Connecticut24.3¢$10
Delaware19.3¢$8.15
District of Columbia24.4¢$10
Florida15.1¢$6.38
Georgia16.4¢$6.91
Hawaiipriciest52.7¢$22
Idaho14.4¢$6.07
Illinois19.9¢$8.40
Indiana17.5¢$7.40
Iowa15.9¢$6.73
Kansas15.7¢$6.64
Kentucky14.3¢$6.02
Louisiana13.5¢$5.70
Maine29.6¢$13
Maryland21.8¢$9.23
Massachusetts29.6¢$13
Michigan23.0¢$9.71
Minnesota17.5¢$7.40
Mississippi14.9¢$6.29
Missouri16.2¢$6.85
Montana15.1¢$6.40
Nebraska13.3¢$5.60
Nevadacheapest13.1¢$5.54
New Hampshire27.0¢$11
New Jersey24.9¢$11
New Mexico15.1¢$6.36
New York29.5¢$12
North Carolina14.7¢$6.23
North Dakota14.1¢$5.97
Ohio19.2¢$8.11
Oklahoma14.3¢$6.05
Oregon16.3¢$6.90
Pennsylvania21.7¢$9.18
Rhode Island29.2¢$12
South Carolina15.6¢$6.57
South Dakota15.4¢$6.49
Tennessee14.1¢$5.94
Texas15.9¢$6.73
Utah13.4¢$5.65
Vermont24.4¢$10
Virginia17.2¢$7.28
Washington14.9¢$6.30
West Virginia15.4¢$6.53
Wisconsin19.6¢$8.26
Wyoming15.2¢$6.44

Certified models closest in efficiency

computer monitors within reach of 42 kWh/yr
ModelkWh/yr$/yr (US avg)
Koorui MB24N2F42$7.75
Samsung F27T450FQN42$7.75
AOC 24E3QF42$7.74
CTL LE22BW42$7.75
Acer B246HL42$7.74
BenQ GW2291-M42$7.76

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 Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) use?
ENERGY STAR certifies the Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) 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 Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) cost to run per month?
About $0.65 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $7.75 a year. Your state's rate moves this up or down; see the table above.
Is the Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) energy efficient?
It uses 6% less electricity than the median certified computer monitor.
What does the Lenovo S24i-** (*=A-Z, a-z, 0-9, +, hyphen, \ or blank) cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $5.54 a year in Nevada (13.1¢/kWh) and $22 in Hawaii (52.7¢/kWh).

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