WattCost

Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

ViewSonic VS20655

The ViewSonic VS20655's certified consumption is 30 kWh per year, which prices out to about $5.46 at the national average rate — your hours of use scale that directly. Only a handful of certified computer monitors do better: it ranks 109 of 1530 and undercuts the median by 34%. Where you live moves the bill from $3.90 a year in Nevada to $16 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

$5.46/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$0.46
Per day
1¢
Certified use
30 kWh/yr
Screen size
23.8 in
Panel
IPS LCD
On-mode power
9.25 W
Sleep-mode power
0.25 W
11 kWh403 kWh
Where the ViewSonic VS20655 (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

ViewSonic VS20655: 30 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$4.88
Alaska28.2¢$8.40
Arizona15.2¢$4.52
Arkansas14.1¢$4.20
California34.7¢$10
Colorado17.1¢$5.10
Connecticut24.3¢$7.24
Delaware19.3¢$5.74
District of Columbia24.4¢$7.26
Florida15.1¢$4.50
Georgia16.4¢$4.87
Hawaiipriciest52.7¢$16
Idaho14.4¢$4.28
Illinois19.9¢$5.92
Indiana17.5¢$5.21
Iowa15.9¢$4.74
Kansas15.7¢$4.68
Kentucky14.3¢$4.25
Louisiana13.5¢$4.02
Maine29.6¢$8.81
Maryland21.8¢$6.50
Massachusetts29.6¢$8.82
Michigan23.0¢$6.85
Minnesota17.5¢$5.22
Mississippi14.9¢$4.43
Missouri16.2¢$4.83
Montana15.1¢$4.51
Nebraska13.3¢$3.95
Nevadacheapest13.1¢$3.90
New Hampshire27.0¢$8.04
New Jersey24.9¢$7.43
New Mexico15.1¢$4.48
New York29.5¢$8.78
North Carolina14.7¢$4.39
North Dakota14.1¢$4.20
Ohio19.2¢$5.71
Oklahoma14.3¢$4.27
Oregon16.3¢$4.86
Pennsylvania21.7¢$6.47
Rhode Island29.2¢$8.70
South Carolina15.6¢$4.63
South Dakota15.4¢$4.57
Tennessee14.1¢$4.19
Texas15.9¢$4.75
Utah13.4¢$3.98
Vermont24.4¢$7.28
Virginia17.2¢$5.13
Washington14.9¢$4.44
West Virginia15.4¢$4.60
Wisconsin19.6¢$5.82
Wyoming15.2¢$4.54

Certified models closest in efficiency

computer monitors within reach of 30 kWh/yr
ModelkWh/yr$/yr (US avg)
Acer B247Y_vmost efficient30$5.47
ELO ET1564L30$5.47
ASUS PA248QVmost efficient30$5.45
ASUS VA24DQFSmost efficient30$5.44
ASUS VA249HG2most efficient30$5.49
ASUS VP229Qmost efficient30$5.49

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.46
Per year
$5.50

30 kWh/yr × 18.3¢/kWh = $5.50/yr

Prefilled with this model's certified 30 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 ViewSonic VS20655 use?
ENERGY STAR certifies the ViewSonic VS20655 at 30 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 ViewSonic VS20655 cost to run per month?
About $0.46 a month at the U.S. average residential rate (18.3¢/kWh) — 1¢ a day, or $5.46 a year. Your state's rate moves this up or down; see the table above.
Is the ViewSonic VS20655 energy efficient?
It uses 34% less electricity than the median certified computer monitor, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the ViewSonic VS20655 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $3.90 a year in Nevada (13.1¢/kWh) and $16 in Hawaii (52.7¢/kWh).

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