Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
BenQ GW2786-B
At the standardized usage ENERGY STAR assumes, the BenQ GW2786-B consumes 48 kWh a year — about $8.71 at the U.S. average electricity rate ($0.73 a month). That's close to the middle of the certified pack — about 6% above the median computer monitor, ranked 865 of 1530. The same unit costs $6.23 a year in Nevada but $25 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$8.71/yr
- Per month
- $0.73
- Per day
- 2¢
- Certified use
- 48 kWh/yr
- Screen size
- 27 in
- Panel
- IPS LCD
- On-mode power
- 15 W
- Sleep-mode power
- 0.3 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $7.79 | |
| Alaska | 28.2¢ | $13 | |
| Arizona | 15.2¢ | $7.21 | |
| Arkansas | 14.1¢ | $6.71 | |
| California | 34.7¢ | $17 | |
| Colorado | 17.1¢ | $8.14 | |
| Connecticut | 24.3¢ | $12 | |
| Delaware | 19.3¢ | $9.16 | |
| District of Columbia | 24.4¢ | $12 | |
| Florida | 15.1¢ | $7.17 | |
| Georgia | 16.4¢ | $7.77 | |
| Hawaiipriciest | 52.7¢ | $25 | |
| Idaho | 14.4¢ | $6.83 | |
| Illinois | 19.9¢ | $9.45 | |
| Indiana | 17.5¢ | $8.32 | |
| Iowa | 15.9¢ | $7.57 | |
| Kansas | 15.7¢ | $7.46 | |
| Kentucky | 14.3¢ | $6.77 | |
| Louisiana | 13.5¢ | $6.41 | |
| Maine | 29.6¢ | $14 | |
| Maryland | 21.8¢ | $10 | |
| Massachusetts | 29.6¢ | $14 | |
| Michigan | 23.0¢ | $11 | |
| Minnesota | 17.5¢ | $8.32 | |
| Mississippi | 14.9¢ | $7.07 | |
| Missouri | 16.2¢ | $7.70 | |
| Montana | 15.1¢ | $7.19 | |
| Nebraska | 13.3¢ | $6.29 | |
| Nevadacheapest | 13.1¢ | $6.23 | |
| New Hampshire | 27.0¢ | $13 | |
| New Jersey | 24.9¢ | $12 | |
| New Mexico | 15.1¢ | $7.15 | |
| New York | 29.5¢ | $14 | |
| North Carolina | 14.7¢ | $7.00 | |
| North Dakota | 14.1¢ | $6.71 | |
| Ohio | 19.2¢ | $9.12 | |
| Oklahoma | 14.3¢ | $6.81 | |
| Oregon | 16.3¢ | $7.75 | |
| Pennsylvania | 21.7¢ | $10 | |
| Rhode Island | 29.2¢ | $14 | |
| South Carolina | 15.6¢ | $7.39 | |
| South Dakota | 15.4¢ | $7.30 | |
| Tennessee | 14.1¢ | $6.68 | |
| Texas | 15.9¢ | $7.57 | |
| Utah | 13.4¢ | $6.35 | |
| Vermont | 24.4¢ | $12 | |
| Virginia | 17.2¢ | $8.18 | |
| Washington | 14.9¢ | $7.08 | |
| West Virginia | 15.4¢ | $7.34 | |
| Wisconsin | 19.6¢ | $9.29 | |
| Wyoming | 15.2¢ | $7.24 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| DELL P2726HEt | 48 | $8.72 |
| PHILIPS 272E2 | 48 | $8.72 |
| Acer B277 | 47 | $8.70 |
| AOC 22P2T | 48 | $8.72 |
| Samsung S24A40*### (*=0-9, #=A-Z, blank) | 47 | $8.69 |
| HP HP 327pf | 48 | $8.74 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.73
- Per year
- $8.80
48 kWh/yr × 18.3¢/kWh = $8.80/yr
Prefilled with this model's certified 48 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 GW2786-B use?
- ENERGY STAR certifies the BenQ GW2786-B at 48 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 GW2786-B cost to run per month?
- About $0.73 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $8.71 a year. Your state's rate moves this up or down; see the table above.
- Is the BenQ GW2786-B energy efficient?
- It uses 6% more electricity than the median certified computer monitor.
- What does the BenQ GW2786-B cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $6.23 a year in Nevada (13.1¢/kWh) and $25 in Hawaii (52.7¢/kWh).