WattCost

Data through April 2026

Running cost · Computer Monitors · ENERGY STAR certified

Samsung S24HG31*** (* = 0-9, A-Z or blank)

The Samsung S24HG31*** (* = 0-9, A-Z or blank)'s certified consumption is 39 kWh per year, which prices out to about $7.38 at the national average rate — your hours of use scale that directly. That's 13% less than the median certified computer monitor, placing it comfortably in the efficient third of the field (440 of 1482). The same unit costs $4.84 a year in North Dakota but $18 in Hawaii — electricity rates, not the appliance, make the difference.

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

$7.38/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$0.62
Per day
2¢
Certified use
39 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
12.53 W
Sleep-mode power
0.14 W
11 kWh403 kWh
Where the Samsung S24HG31*** (* = 0-9, A-Z or blank) (▮) sits among all 1,482 certified computer monitors, by annual kWh

What it costs in every state

Samsung S24HG31*** (* = 0-9, A-Z or blank): 39 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$6.83
Alaska27.4¢$11
Arizona15.5¢$6.07
Arkansas14.2¢$5.55
California35.3¢$14
Colorado16.5¢$6.49
Connecticut32.2¢$13
Delaware18.8¢$7.37
District of Columbia25.4¢$9.96
Florida15.4¢$6.03
Georgia15.4¢$6.03
Hawaiipriciest46.6¢$18
Idaho12.7¢$4.98
Illinois20.5¢$8.03
Indiana17.9¢$7.02
Iowa13.9¢$5.43
Kansas15.8¢$6.19
Kentucky15.0¢$5.89
Louisiana14.4¢$5.66
Maine28.4¢$11
Maryland22.1¢$8.65
Massachusetts29.4¢$12
Michigan21.4¢$8.39
Minnesota16.4¢$6.43
Mississippi16.8¢$6.57
Missouri14.0¢$5.49
Montana13.9¢$5.45
Nebraska13.3¢$5.21
Nevada14.3¢$5.60
New Hampshire27.2¢$11
New Jersey23.5¢$9.23
New Mexico15.2¢$5.94
New York29.4¢$12
North Carolina16.3¢$6.37
North Dakotacheapest12.3¢$4.84
Ohio19.5¢$7.64
Oklahoma13.3¢$5.22
Oregon15.8¢$6.19
Pennsylvania21.5¢$8.42
Rhode Island28.3¢$11
South Carolina17.1¢$6.69
South Dakota14.5¢$5.69
Tennessee14.9¢$5.86
Texas17.0¢$6.66
Utah13.3¢$5.21
Vermont24.6¢$9.63
Virginia17.4¢$6.81
Washington14.4¢$5.63
West Virginia16.1¢$6.30
Wisconsin19.2¢$7.53
Wyoming14.7¢$5.76

Certified models closest in efficiency

computer monitors within reach of 39 kWh/yr
ModelkWh/yr$/yr (US avg)
Lenovo H25270FE0most efficient39$7.39
SCEPTRE E2239$7.39
DELL E2423HNf39$7.39
Acer B226HQL39$7.40
MSI PRO MP251W E239$7.40
LG 24BP55Q39$7.36

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.61
Per year
$7.34

39 kWh/yr × 18.8¢/kWh = $7.34/yr

Prefilled with this model's certified 39 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 Samsung S24HG31*** (* = 0-9, A-Z or blank) use?
ENERGY STAR certifies the Samsung S24HG31*** (* = 0-9, A-Z or blank) at 39 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 Samsung S24HG31*** (* = 0-9, A-Z or blank) cost to run per month?
About $0.62 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $7.38 a year. Your state's rate moves this up or down; see the table above.
Is the Samsung S24HG31*** (* = 0-9, A-Z or blank) energy efficient?
It uses 13% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
What does the Samsung S24HG31*** (* = 0-9, A-Z or blank) cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $4.84 a year in North Dakota (12.3¢/kWh) and $18 in Hawaii (46.6¢/kWh).

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