Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
BenQ GW2280-T
The BenQ GW2280-T's certified consumption is 42 kWh per year, which prices out to about $7.72 at the national average rate — your hours of use scale that directly. That's close to the middle of the certified pack — about 6% under the median computer monitor, ranked 617 of 1530. Where you live moves the bill from $5.52 a year in Nevada to $22 in Hawaii.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$7.72/yr
- Per month
- $0.64
- Per day
- 2¢
- Certified use
- 42 kWh/yr
- Screen size
- 21.5 in
- Panel
- TFT LCD
- On-mode power
- 12.99 W
- Sleep-mode power
- 0.29 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $6.91 | |
| Alaska | 28.2¢ | $12 | |
| Arizona | 15.2¢ | $6.39 | |
| Arkansas | 14.1¢ | $5.95 | |
| California | 34.7¢ | $15 | |
| Colorado | 17.1¢ | $7.22 | |
| Connecticut | 24.3¢ | $10 | |
| Delaware | 19.3¢ | $8.12 | |
| District of Columbia | 24.4¢ | $10 | |
| Florida | 15.1¢ | $6.36 | |
| Georgia | 16.4¢ | $6.89 | |
| Hawaiipriciest | 52.7¢ | $22 | |
| Idaho | 14.4¢ | $6.05 | |
| Illinois | 19.9¢ | $8.38 | |
| Indiana | 17.5¢ | $7.38 | |
| Iowa | 15.9¢ | $6.71 | |
| Kansas | 15.7¢ | $6.62 | |
| Kentucky | 14.3¢ | $6.01 | |
| Louisiana | 13.5¢ | $5.68 | |
| Maine | 29.6¢ | $12 | |
| Maryland | 21.8¢ | $9.20 | |
| Massachusetts | 29.6¢ | $12 | |
| Michigan | 23.0¢ | $9.68 | |
| Minnesota | 17.5¢ | $7.38 | |
| Mississippi | 14.9¢ | $6.27 | |
| Missouri | 16.2¢ | $6.83 | |
| Montana | 15.1¢ | $6.38 | |
| Nebraska | 13.3¢ | $5.58 | |
| Nevadacheapest | 13.1¢ | $5.52 | |
| New Hampshire | 27.0¢ | $11 | |
| New Jersey | 24.9¢ | $11 | |
| New Mexico | 15.1¢ | $6.34 | |
| New York | 29.5¢ | $12 | |
| North Carolina | 14.7¢ | $6.21 | |
| North Dakota | 14.1¢ | $5.95 | |
| Ohio | 19.2¢ | $8.08 | |
| Oklahoma | 14.3¢ | $6.04 | |
| Oregon | 16.3¢ | $6.87 | |
| Pennsylvania | 21.7¢ | $9.15 | |
| Rhode Island | 29.2¢ | $12 | |
| South Carolina | 15.6¢ | $6.55 | |
| South Dakota | 15.4¢ | $6.47 | |
| Tennessee | 14.1¢ | $5.93 | |
| Texas | 15.9¢ | $6.71 | |
| Utah | 13.4¢ | $5.63 | |
| Vermont | 24.4¢ | $10 | |
| Virginia | 17.2¢ | $7.25 | |
| Washington | 14.9¢ | $6.28 | |
| West Virginia | 15.4¢ | $6.51 | |
| Wisconsin | 19.6¢ | $8.24 | |
| Wyoming | 15.2¢ | $6.42 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| PHILIPS 22B2U2300E | 42 | $7.72 |
| Acer CB242Y | 42 | $7.73 |
| AOC 24B2XD | 42 | $7.73 |
| PHILIPS 221B8L | 42 | $7.72 |
| ASRock PG25FFT | 42 | $7.73 |
| ASUS VY229 | 42 | $7.73 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.64
- Per year
- $7.70
42 kWh/yr × 18.3¢/kWh = $7.70/yr
Prefilled with this model's certified 42 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 GW2280-T use?
- ENERGY STAR certifies the BenQ GW2280-T at 42 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 GW2280-T cost to run per month?
- About $0.64 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $7.72 a year. Your state's rate moves this up or down; see the table above.
- Is the BenQ GW2280-T energy efficient?
- It uses 6% less electricity than the median certified computer monitor.
- What does the BenQ GW2280-T cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $5.52 a year in Nevada (13.1¢/kWh) and $22 in Hawaii (52.7¢/kWh).