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Data through April 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 $7.96 at the U.S. average electricity rate ($0.66 a month). Efficiency-wise it's unremarkable in a good way: within 6% of the median certified computer monitor (rank 598 of 1482). Where you live moves the bill from $5.22 a year in North Dakota to $20 in Hawaii.

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

$7.96/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$0.66
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 1,482 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
Alabama17.4¢$7.36
Alaska27.4¢$12
Arizona15.5¢$6.54
Arkansas14.2¢$5.98
California35.3¢$15
Colorado16.5¢$6.99
Connecticut32.2¢$14
Delaware18.8¢$7.94
District of Columbia25.4¢$11
Florida15.4¢$6.50
Georgia15.4¢$6.49
Hawaiipriciest46.6¢$20
Idaho12.7¢$5.37
Illinois20.5¢$8.65
Indiana17.9¢$7.56
Iowa13.9¢$5.86
Kansas15.8¢$6.67
Kentucky15.0¢$6.35
Louisiana14.4¢$6.10
Maine28.4¢$12
Maryland22.1¢$9.32
Massachusetts29.4¢$12
Michigan21.4¢$9.04
Minnesota16.4¢$6.92
Mississippi16.8¢$7.08
Missouri14.0¢$5.92
Montana13.9¢$5.87
Nebraska13.3¢$5.61
Nevada14.3¢$6.04
New Hampshire27.2¢$12
New Jersey23.5¢$9.94
New Mexico15.2¢$6.40
New York29.4¢$12
North Carolina16.3¢$6.87
North Dakotacheapest12.3¢$5.22
Ohio19.5¢$8.23
Oklahoma13.3¢$5.62
Oregon15.8¢$6.67
Pennsylvania21.5¢$9.07
Rhode Island28.3¢$12
South Carolina17.1¢$7.21
South Dakota14.5¢$6.13
Tennessee14.9¢$6.31
Texas17.0¢$7.18
Utah13.3¢$5.62
Vermont24.6¢$10
Virginia17.4¢$7.34
Washington14.4¢$6.07
West Virginia16.1¢$6.79
Wisconsin19.2¢$8.12
Wyoming14.7¢$6.20

Certified models closest in efficiency

computer monitors within reach of 42 kWh/yr
ModelkWh/yr$/yr (US avg)
Koorui MB24N2F42$7.96
Samsung F27T450FQN42$7.96
AOC 24E3QF42$7.95
CTL LE22BW42$7.96
Acer B246HL42$7.95
BenQ GW2291-M42$7.97

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.66
Per year
$7.91

42 kWh/yr × 18.8¢/kWh = $7.91/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 $0.66 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $7.96 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 $5.22 a year in North Dakota (12.3¢/kWh) and $20 in Hawaii (46.6¢/kWh).

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