WattCost

Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

HP E45c G5

The HP E45c G5's certified consumption is 136 kWh per year, which prices out to about $25 at the national average rate — your hours of use scale that directly. Even among certified models it's on the thirsty end: 202% more electricity than the median computer monitor, ranked 1501 of 1530. The same unit costs $18 a year in Nevada but $72 in Hawaii — electricity rates, not the appliance, make the difference.

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

$25/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$2.08
Per day
7¢
Certified use
136 kWh/yr
Screen size
44.5 in
Panel
VA LCD
On-mode power
43.6 W
Sleep-mode power
0.43 W
11 kWh403 kWh
Where the HP E45c G5 (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

HP E45c G5: 136 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$22
Alaska28.2¢$38
Arizona15.2¢$21
Arkansas14.1¢$19
California34.7¢$47
Colorado17.1¢$23
Connecticut24.3¢$33
Delaware19.3¢$26
District of Columbia24.4¢$33
Florida15.1¢$21
Georgia16.4¢$22
Hawaiipriciest52.7¢$72
Idaho14.4¢$20
Illinois19.9¢$27
Indiana17.5¢$24
Iowa15.9¢$22
Kansas15.7¢$21
Kentucky14.3¢$19
Louisiana13.5¢$18
Maine29.6¢$40
Maryland21.8¢$30
Massachusetts29.6¢$40
Michigan23.0¢$31
Minnesota17.5¢$24
Mississippi14.9¢$20
Missouri16.2¢$22
Montana15.1¢$21
Nebraska13.3¢$18
Nevadacheapest13.1¢$18
New Hampshire27.0¢$37
New Jersey24.9¢$34
New Mexico15.1¢$21
New York29.5¢$40
North Carolina14.7¢$20
North Dakota14.1¢$19
Ohio19.2¢$26
Oklahoma14.3¢$20
Oregon16.3¢$22
Pennsylvania21.7¢$30
Rhode Island29.2¢$40
South Carolina15.6¢$21
South Dakota15.4¢$21
Tennessee14.1¢$19
Texas15.9¢$22
Utah13.4¢$18
Vermont24.4¢$33
Virginia17.2¢$23
Washington14.9¢$20
West Virginia15.4¢$21
Wisconsin19.6¢$27
Wyoming15.2¢$21

Certified models closest in efficiency

computer monitors within reach of 136 kWh/yr
ModelkWh/yr$/yr (US avg)
ASUS PA32UCXR137$25
LG 40WT95UF137$25
PHILIPS 45B1U69138$25
LG 38BN95C138$25
ASUS PA32QCV138$25
PHILIPS 498P9134$25

Run your own numbers

Your rate, your numbers

Per day
7¢
Per month
$2.08
Per year
$25

136 kWh/yr × 18.3¢/kWh = $25/yr

Prefilled with this model's certified 136 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 HP E45c G5 use?
ENERGY STAR certifies the HP E45c G5 at 136 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 HP E45c G5 cost to run per month?
About $2.08 a month at the U.S. average residential rate (18.3¢/kWh) — 7¢ a day, or $25 a year. Your state's rate moves this up or down; see the table above.
Is the HP E45c G5 energy efficient?
It uses 202% more electricity than the median certified computer monitor, which puts it among the least efficient certified models.
What does the HP E45c G5 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $18 a year in Nevada (13.1¢/kWh) and $72 in Hawaii (52.7¢/kWh).

Keep digging