WattCost

Data through June 2026

Cost to run · Illinois · 19.9¢/kWh residential average

How much does it cost to run a computer monitor in Illinois?

$8.95/yr · median certified model

Electricity in Illinois is priced within a few percent of the U.S. average — 19.9¢/kWh — which puts the typical certified computer monitor at about $8.95 annually, essentially the national number.

In the national ranking, Illinois lands at 36 of 51 for what a computer monitor costs to run. At local rates, certified models span $2.21 (Acer PE140WU_z) to $80 (PLANAR 2E0I1) per year — $78 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median computer monitor would cost $5.90 and $24 a year there.

Illinois
$8.95
US average
$8.26
Nevada
$5.90
Hawaii
$24
Median certified computer monitor (45 kWh/yr) per year, at each rate

The cheapest computer monitors to run at Illinois rates

Top 10 by certified kWh, priced at 19.9¢/kWh
#ModelkWh/yr$/yr in IL
1Acer PE140WU_zmost efficient11$2.21
2ELO ET1304LSN13$2.54
3HP HP E14 G4most efficient13$2.54
4DELL P1424Hf13$2.68
5VAIO VJ5VP141XXXXmost efficient14$2.84
6Wacom One DTC14114$2.88
7PLANAR PM16-S14$2.88
8EIZO FlexScan FLTmost efficient15$2.91
9MSI PRO MP161 E2most efficient15$2.99
10ASUS MQ16FCmost efficient15$3.04

Price any model at Illinois rates

Your rate, your numbers

Per day
2¢
Per month
$0.75
Per year
$8.95

45 kWh/yr × 19.9¢/kWh = $8.95/yr

Prefilled with the median certified computer monitor (45 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a computer monitor in Illinois?
About $8.95 a year for the median ENERGY STAR certified computer monitor, at Illinois's average residential rate of 19.9¢/kWh — that's $0.75 a month.
Is electricity expensive in Illinois?
Illinois's residential average of 19.9¢/kWh is 8% above the U.S. average of 18.3¢/kWh, ranking 36 of 51 jurisdictions (1 = cheapest).
What's the cheapest computer monitor to run in Illinois?
Among currently certified models, the Acer PE140WU_z costs the least at about $2.21 a year at Illinois rates (11 kWh/yr).
How does Illinois compare with other states?
The same median computer monitor costs $5.90 a year in Nevada (the cheapest state) and $24 in Hawaii (the priciest). Illinois sits at $8.95.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.