WattCost

Data through April 2026

Running cost · Computer Monitors · ENERGY STAR certified

BenQ RD320U-T

The BenQ RD320U-T's certified consumption is 92 kWh per year, which prices out to about $17 at the national average rate — your hours of use scale that directly. It sits near the bottom of the certified table — using 104% more than the median computer monitor (rank 1340 of 1482) — so the state you live in matters more than usual. The same unit costs $11 a year in North Dakota but $43 in Hawaii — electricity rates, not the appliance, make the difference.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$17/yr

$2.09 · cheapest certified computer monitors$76 · priciest
Per month
$1.44
Per day
Certified use
92 kWh/yr
Screen size
31.5 in
Panel
TFT-LCD
On-mode power
29.47 W
Sleep-mode power
0.25 W
11 kWh403 kWh
Where the BenQ RD320U-T (▮) sits among all 1,482 certified computer monitors, by annual kWh

What it costs in every state

BenQ RD320U-T: 92 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$16
Alaska27.4¢$25
Arizona15.5¢$14
Arkansas14.2¢$13
California35.3¢$32
Colorado16.5¢$15
Connecticut32.2¢$30
Delaware18.8¢$17
District of Columbia25.4¢$23
Florida15.4¢$14
Georgia15.4¢$14
Hawaiipriciest46.6¢$43
Idaho12.7¢$12
Illinois20.5¢$19
Indiana17.9¢$16
Iowa13.9¢$13
Kansas15.8¢$14
Kentucky15.0¢$14
Louisiana14.4¢$13
Maine28.4¢$26
Maryland22.1¢$20
Massachusetts29.4¢$27
Michigan21.4¢$20
Minnesota16.4¢$15
Mississippi16.8¢$15
Missouri14.0¢$13
Montana13.9¢$13
Nebraska13.3¢$12
Nevada14.3¢$13
New Hampshire27.2¢$25
New Jersey23.5¢$22
New Mexico15.2¢$14
New York29.4¢$27
North Carolina16.3¢$15
North Dakotacheapest12.3¢$11
Ohio19.5¢$18
Oklahoma13.3¢$12
Oregon15.8¢$14
Pennsylvania21.5¢$20
Rhode Island28.3¢$26
South Carolina17.1¢$16
South Dakota14.5¢$13
Tennessee14.9¢$14
Texas17.0¢$16
Utah13.3¢$12
Vermont24.6¢$23
Virginia17.4¢$16
Washington14.4¢$13
West Virginia16.1¢$15
Wisconsin19.2¢$18
Wyoming14.7¢$13

Certified models closest in efficiency

computer monitors within reach of 92 kWh/yr
ModelkWh/yr$/yr (US avg)
Acer BL280K92$17
Lenovo F213403P092$17
LG 32BP55U92$17
Acer BM32092$17
Acer CB343CUR91$17
LG 32BN88U91$17

Run your own numbers

Your rate, your numbers

Per day
Per month
$1.44
Per year
$17

92 kWh/yr × 18.8¢/kWh = $17/yr

Prefilled with this model's certified 92 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 BenQ RD320U-T use?
ENERGY STAR certifies the BenQ RD320U-T at 92 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 BenQ RD320U-T cost to run per month?
About $1.44 a month at the U.S. average residential rate (18.8¢/kWh) — 5¢ a day, or $17 a year. Your state's rate moves this up or down; see the table above.
Is the BenQ RD320U-T energy efficient?
It uses 104% more electricity than the median certified computer monitor, which puts it among the least efficient certified models.
What does the BenQ RD320U-T cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $11 a year in North Dakota (12.3¢/kWh) and $43 in Hawaii (46.6¢/kWh).

Keep digging