WattCost

Data through April 2026

Running cost · Computer Monitors · ENERGY STAR certified

ELO ET1504L

At the standardized usage ENERGY STAR assumes, the ELO ET1504L consumes 24 kWh a year — about $4.58 at the U.S. average electricity rate ($0.38 a month). Only a handful of certified computer monitors do better: it ranks 66 of 1482 and undercuts the median by 46%. The same unit costs $3.01 a year in North Dakota but $11 in Hawaii — electricity rates, not the appliance, make the difference.

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

$4.58/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$0.38
Per day
Certified use
24 kWh/yr
Screen size
15.5 in
Panel
IPS LCD
On-mode power
6.44 W
Sleep-mode power
0.81 W
11 kWh403 kWh
Where the ELO ET1504L (▮) sits among all 1,482 certified computer monitors, by annual kWh

What it costs in every state

ELO ET1504L: 24 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$4.24
Alaska27.4¢$6.66
Arizona15.5¢$3.77
Arkansas14.2¢$3.45
California35.3¢$8.58
Colorado16.5¢$4.03
Connecticut32.2¢$7.85
Delaware18.8¢$4.57
District of Columbia25.4¢$6.18
Florida15.4¢$3.74
Georgia15.4¢$3.74
Hawaiipriciest46.6¢$11
Idaho12.7¢$3.09
Illinois20.5¢$4.98
Indiana17.9¢$4.36
Iowa13.9¢$3.37
Kansas15.8¢$3.84
Kentucky15.0¢$3.66
Louisiana14.4¢$3.51
Maine28.4¢$6.92
Maryland22.1¢$5.37
Massachusetts29.4¢$7.17
Michigan21.4¢$5.21
Minnesota16.4¢$3.99
Mississippi16.8¢$4.08
Missouri14.0¢$3.41
Montana13.9¢$3.38
Nebraska13.3¢$3.23
Nevada14.3¢$3.48
New Hampshire27.2¢$6.63
New Jersey23.5¢$5.73
New Mexico15.2¢$3.69
New York29.4¢$7.17
North Carolina16.3¢$3.96
North Dakotacheapest12.3¢$3.01
Ohio19.5¢$4.74
Oklahoma13.3¢$3.24
Oregon15.8¢$3.84
Pennsylvania21.5¢$5.23
Rhode Island28.3¢$6.89
South Carolina17.1¢$4.15
South Dakota14.5¢$3.53
Tennessee14.9¢$3.64
Texas17.0¢$4.14
Utah13.3¢$3.23
Vermont24.6¢$5.98
Virginia17.4¢$4.23
Washington14.4¢$3.50
West Virginia16.1¢$3.91
Wisconsin19.2¢$4.68
Wyoming14.7¢$3.57

Certified models closest in efficiency

computer monitors within reach of 24 kWh/yr
ModelkWh/yr$/yr (US avg)
ViewSonic VS2020124$4.57
ELO ET1509L24$4.61
Sharp DD-E224Fmost efficient24$4.55
WACOM DTK16825$4.61
AOC 16T3EA24$4.53
Acer V206HQL24$4.52

Run your own numbers

Your rate, your numbers

Per day
Per month
$0.38
Per year
$4.52

24 kWh/yr × 18.8¢/kWh = $4.52/yr

Prefilled with this model's certified 24 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 ELO ET1504L use?
ENERGY STAR certifies the ELO ET1504L at 24 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 ELO ET1504L cost to run per month?
About $0.38 a month at the U.S. average residential rate (18.8¢/kWh) — 1¢ a day, or $4.58 a year. Your state's rate moves this up or down; see the table above.
Is the ELO ET1504L energy efficient?
It uses 46% less electricity than the median certified computer monitor, placing it in the top 10% of certified models.
What does the ELO ET1504L cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $3.01 a year in North Dakota (12.3¢/kWh) and $11 in Hawaii (46.6¢/kWh).

Keep digging