Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
BenQ GW2790Q-J
The BenQ GW2790Q-J's certified consumption is 53 kWh per year, which prices out to about $9.96 at the national average rate — your hours of use scale that directly. That's close to the middle of the certified pack — about 17% above the median computer monitor, ranked 947 of 1482. Where you live moves the bill from $6.53 a year in North Dakota to $25 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$9.96/yr
- Per month
- $0.83
- Per day
- 3¢
- Certified use
- 53 kWh/yr
- Screen size
- 27 in
- Panel
- IPS LCD
- On-mode power
- 16.83 W
- Sleep-mode power
- 0.23 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $9.21 | |
| Alaska | 27.4¢ | $14 | |
| Arizona | 15.5¢ | $8.19 | |
| Arkansas | 14.2¢ | $7.49 | |
| California | 35.3¢ | $19 | |
| Colorado | 16.5¢ | $8.75 | |
| Connecticut | 32.2¢ | $17 | |
| Delaware | 18.8¢ | $9.94 | |
| District of Columbia | 25.4¢ | $13 | |
| Florida | 15.4¢ | $8.14 | |
| Georgia | 15.4¢ | $8.13 | |
| Hawaiipriciest | 46.6¢ | $25 | |
| Idaho | 12.7¢ | $6.72 | |
| Illinois | 20.5¢ | $11 | |
| Indiana | 17.9¢ | $9.47 | |
| Iowa | 13.9¢ | $7.33 | |
| Kansas | 15.8¢ | $8.35 | |
| Kentucky | 15.0¢ | $7.95 | |
| Louisiana | 14.4¢ | $7.64 | |
| Maine | 28.4¢ | $15 | |
| Maryland | 22.1¢ | $12 | |
| Massachusetts | 29.4¢ | $16 | |
| Michigan | 21.4¢ | $11 | |
| Minnesota | 16.4¢ | $8.67 | |
| Mississippi | 16.8¢ | $8.87 | |
| Missouri | 14.0¢ | $7.41 | |
| Montana | 13.9¢ | $7.35 | |
| Nebraska | 13.3¢ | $7.03 | |
| Nevada | 14.3¢ | $7.56 | |
| New Hampshire | 27.2¢ | $14 | |
| New Jersey | 23.5¢ | $12 | |
| New Mexico | 15.2¢ | $8.02 | |
| New York | 29.4¢ | $16 | |
| North Carolina | 16.3¢ | $8.60 | |
| North Dakotacheapest | 12.3¢ | $6.53 | |
| Ohio | 19.5¢ | $10 | |
| Oklahoma | 13.3¢ | $7.04 | |
| Oregon | 15.8¢ | $8.35 | |
| Pennsylvania | 21.5¢ | $11 | |
| Rhode Island | 28.3¢ | $15 | |
| South Carolina | 17.1¢ | $9.03 | |
| South Dakota | 14.5¢ | $7.68 | |
| Tennessee | 14.9¢ | $7.90 | |
| Texas | 17.0¢ | $8.99 | |
| Utah | 13.3¢ | $7.03 | |
| Vermont | 24.6¢ | $13 | |
| Virginia | 17.4¢ | $9.20 | |
| Washington | 14.4¢ | $7.60 | |
| West Virginia | 16.1¢ | $8.50 | |
| Wisconsin | 19.2¢ | $10 | |
| Wyoming | 14.7¢ | $7.77 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Acer V277U | 53 | $9.96 |
| AOC Q27P4U | 53 | $9.96 |
| Acer V277U | 53 | $9.96 |
| PHILIPS 276B1 | 53 | $9.96 |
| LG 27BA750 | 53 | $9.95 |
| LG 27BA850 | 53 | $9.95 |
Run your own numbers
Your rate, your numbers
- Per day
- 3¢
- Per month
- $0.83
- Per year
- $9.98
53 kWh/yr × 18.8¢/kWh = $9.98/yr
Prefilled with this model's certified 53 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 GW2790Q-J use?
- ENERGY STAR certifies the BenQ GW2790Q-J at 53 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 GW2790Q-J cost to run per month?
- About $0.83 a month at the U.S. average residential rate (18.8¢/kWh) — 3¢ a day, or $9.96 a year. Your state's rate moves this up or down; see the table above.
- Is the BenQ GW2790Q-J energy efficient?
- It uses 17% more electricity than the median certified computer monitor.
- What does the BenQ GW2790Q-J cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $6.53 a year in North Dakota (12.3¢/kWh) and $25 in Hawaii (46.6¢/kWh).