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Data through June 2026

Running cost · Computer Monitors · ENERGY STAR certified

PHILIPS 288B9

At the standardized usage ENERGY STAR assumes, the PHILIPS 288B9 consumes 70 kWh a year — about $13 at the U.S. average electricity rate ($1.07 a month). Even among certified models it's on the thirsty end: 55% more electricity than the median computer monitor, ranked 1190 of 1530. Where you live moves the bill from $9.17 a year in Nevada to $37 in Hawaii.

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

$13/yr

$2.04 · cheapest certified computer monitors$74 · priciest
Per month
$1.07
Per day
4¢
Certified use
70 kWh/yr
Screen size
28 in
Panel
TFT LCD
On-mode power
22.48 W
Sleep-mode power
0.18 W
11 kWh403 kWh
Where the PHILIPS 288B9 (▮) sits among all 1,530 certified computer monitors, by annual kWh

What it costs in every state

PHILIPS 288B9: 70 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$11
Alaska28.2¢$20
Arizona15.2¢$11
Arkansas14.1¢$9.88
California34.7¢$24
Colorado17.1¢$12
Connecticut24.3¢$17
Delaware19.3¢$13
District of Columbia24.4¢$17
Florida15.1¢$11
Georgia16.4¢$11
Hawaiipriciest52.7¢$37
Idaho14.4¢$10
Illinois19.9¢$14
Indiana17.5¢$12
Iowa15.9¢$11
Kansas15.7¢$11
Kentucky14.3¢$9.97
Louisiana13.5¢$9.44
Maine29.6¢$21
Maryland21.8¢$15
Massachusetts29.6¢$21
Michigan23.0¢$16
Minnesota17.5¢$12
Mississippi14.9¢$10
Missouri16.2¢$11
Montana15.1¢$11
Nebraska13.3¢$9.27
Nevadacheapest13.1¢$9.17
New Hampshire27.0¢$19
New Jersey24.9¢$17
New Mexico15.1¢$11
New York29.5¢$21
North Carolina14.7¢$10
North Dakota14.1¢$9.88
Ohio19.2¢$13
Oklahoma14.3¢$10
Oregon16.3¢$11
Pennsylvania21.7¢$15
Rhode Island29.2¢$20
South Carolina15.6¢$11
South Dakota15.4¢$11
Tennessee14.1¢$9.84
Texas15.9¢$11
Utah13.4¢$9.35
Vermont24.4¢$17
Virginia17.2¢$12
Washington14.9¢$10
West Virginia15.4¢$11
Wisconsin19.6¢$14
Wyoming15.2¢$11

Certified models closest in efficiency

computer monitors within reach of 70 kWh/yr
ModelkWh/yr$/yr (US avg)
Lenovo A18TIO27i70$13
LG 27BP55U70$13
MSI Modern MD272UPHW70$13
PHILIPS 272P7V70$13
PHILIPS 27B2U3670$13
BLOOMBERG BFP200-2770$13

Run your own numbers

Your rate, your numbers

Per day
4¢
Per month
$1.07
Per year
$13

70 kWh/yr × 18.3¢/kWh = $13/yr

Prefilled with this model's certified 70 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 PHILIPS 288B9 use?
ENERGY STAR certifies the PHILIPS 288B9 at 70 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 PHILIPS 288B9 cost to run per month?
About $1.07 a month at the U.S. average residential rate (18.3¢/kWh) — 4¢ a day, or $13 a year. Your state's rate moves this up or down; see the table above.
Is the PHILIPS 288B9 energy efficient?
It uses 55% more electricity than the median certified computer monitor, which puts it among the least efficient certified models.
What does the PHILIPS 288B9 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $9.17 a year in Nevada (13.1¢/kWh) and $37 in Hawaii (52.7¢/kWh).

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