WattCost

Data through April 2026

Cost to run · Connecticut · 32.2¢/kWh residential average

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

$15/yr · median certified model

Electricity in Connecticut is genuinely expensive — 32.2¢/kWh, 71% above the national average — so the median certified computer monitor costs about $15 a year, and efficiency differences between models turn into real money.

Only 2 jurisdictions cost more: Connecticut ranks 49 of 51 for running a computer monitor. At local rates, certified models span $3.58 (Acer PE140WU_z) to $130 (PLANAR 2E0I1) per year — $126 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median computer monitor would cost $5.57 and $21 a year there.

Connecticut
$15
US average
$8.49
North Dakota
$5.57
Hawaii
$21
Median certified computer monitor (45 kWh/yr) per year, at each rate

The cheapest computer monitors to run at Connecticut rates

Top 10 by certified kWh, priced at 32.2¢/kWh
#ModelkWh/yr$/yr in CT
1Acer PE140WU_zmost efficient11$3.58
2HP HP E14 G4most efficient13$4.12
3DELL P1424Hf13$4.34
4VAIO VJ5VP141XXXXmost efficient14$4.60
5Wacom One DTC14114$4.67
6PLANAR PM16-S14$4.67
7EIZO FlexScan FLTmost efficient15$4.71
8MSI PRO MP161 E2most efficient15$4.85
9ASUS MQ16FCmost efficient15$4.92
10ASUS MB14AC15$4.97

Price any model at Connecticut rates

Your rate, your numbers

Per day
Per month
$1.21
Per year
$15

45 kWh/yr × 32.2¢/kWh = $15/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 Connecticut?
About $15 a year for the median ENERGY STAR certified computer monitor, at Connecticut's average residential rate of 32.2¢/kWh — that's $1.21 a month.
Is electricity expensive in Connecticut?
Connecticut's residential average of 32.2¢/kWh is 71% above the U.S. average of 18.8¢/kWh, ranking 49 of 51 jurisdictions (1 = cheapest).
What's the cheapest computer monitor to run in Connecticut?
Among currently certified models, the Acer PE140WU_z costs the least at about $3.58 a year at Connecticut rates (11 kWh/yr).
How does Connecticut compare with other states?
The same median computer monitor costs $5.57 a year in North Dakota (the cheapest state) and $21 in Hawaii (the priciest). Connecticut sits at $15.

Keep digging

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