Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
BenQ GW2480-B
The BenQ GW2480-B's certified consumption is 32 kWh per year, which prices out to about $5.95 at the national average rate — your hours of use scale that directly. Only a handful of certified computer monitors do better: it ranks 136 of 1482 and undercuts the median by 30%. The same unit costs $3.90 a year in North Dakota but $15 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$5.95/yr
- Per month
- $0.50
- Per day
- 2¢
- Certified use
- 32 kWh/yr
- Screen size
- 23.8 in
- Panel
- IPS LCD
- On-mode power
- 10 W
- Sleep-mode power
- 0.2 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $5.50 | |
| Alaska | 27.4¢ | $8.64 | |
| Arizona | 15.5¢ | $4.89 | |
| Arkansas | 14.2¢ | $4.47 | |
| California | 35.3¢ | $11 | |
| Colorado | 16.5¢ | $5.23 | |
| Connecticut | 32.2¢ | $10 | |
| Delaware | 18.8¢ | $5.94 | |
| District of Columbia | 25.4¢ | $8.03 | |
| Florida | 15.4¢ | $4.86 | |
| Georgia | 15.4¢ | $4.86 | |
| Hawaiipriciest | 46.6¢ | $15 | |
| Idaho | 12.7¢ | $4.01 | |
| Illinois | 20.5¢ | $6.47 | |
| Indiana | 17.9¢ | $5.66 | |
| Iowa | 13.9¢ | $4.38 | |
| Kansas | 15.8¢ | $4.99 | |
| Kentucky | 15.0¢ | $4.75 | |
| Louisiana | 14.4¢ | $4.56 | |
| Maine | 28.4¢ | $8.98 | |
| Maryland | 22.1¢ | $6.97 | |
| Massachusetts | 29.4¢ | $9.31 | |
| Michigan | 21.4¢ | $6.76 | |
| Minnesota | 16.4¢ | $5.18 | |
| Mississippi | 16.8¢ | $5.30 | |
| Missouri | 14.0¢ | $4.43 | |
| Montana | 13.9¢ | $4.39 | |
| Nebraska | 13.3¢ | $4.20 | |
| Nevada | 14.3¢ | $4.52 | |
| New Hampshire | 27.2¢ | $8.61 | |
| New Jersey | 23.5¢ | $7.44 | |
| New Mexico | 15.2¢ | $4.79 | |
| New York | 29.4¢ | $9.31 | |
| North Carolina | 16.3¢ | $5.13 | |
| North Dakotacheapest | 12.3¢ | $3.90 | |
| Ohio | 19.5¢ | $6.16 | |
| Oklahoma | 13.3¢ | $4.21 | |
| Oregon | 15.8¢ | $4.99 | |
| Pennsylvania | 21.5¢ | $6.78 | |
| Rhode Island | 28.3¢ | $8.94 | |
| South Carolina | 17.1¢ | $5.39 | |
| South Dakota | 14.5¢ | $4.59 | |
| Tennessee | 14.9¢ | $4.72 | |
| Texas | 17.0¢ | $5.37 | |
| Utah | 13.3¢ | $4.20 | |
| Vermont | 24.6¢ | $7.76 | |
| Virginia | 17.4¢ | $5.49 | |
| Washington | 14.4¢ | $4.54 | |
| West Virginia | 16.1¢ | $5.07 | |
| Wisconsin | 19.2¢ | $6.07 | |
| Wyoming | 14.7¢ | $4.64 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| BenQ GW2280-B | 32 | $5.95 |
| ViewSonic VS19279 | 32 | $5.95 |
| Acer V247Wmost efficient | 32 | $5.94 |
| EIZO FlexScan EV2490 | 32 | $5.96 |
| MSI Modern MD2412P | 32 | $5.96 |
| DELL E2026Hf | 32 | $5.99 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.50
- Per year
- $6.03
32 kWh/yr × 18.8¢/kWh = $6.03/yr
Prefilled with this model's certified 32 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 GW2480-B use?
- ENERGY STAR certifies the BenQ GW2480-B at 32 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 GW2480-B cost to run per month?
- About $0.50 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $5.95 a year. Your state's rate moves this up or down; see the table above.
- Is the BenQ GW2480-B energy efficient?
- It uses 30% less electricity than the median certified computer monitor, placing it in the top 10% of certified models.
- What does the BenQ GW2480-B cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $3.90 a year in North Dakota (12.3¢/kWh) and $15 in Hawaii (46.6¢/kWh).