Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
AOC 27E4U
The AOC 27E4U's certified consumption is 46 kWh per year, which prices out to about $8.74 at the national average rate — your hours of use scale that directly. Efficiency-wise it's unremarkable in a good way: within 3% of the median certified computer monitor (rank 799 of 1482). Where you live moves the bill from $5.73 a year in North Dakota to $22 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$8.74/yr
- Per month
- $0.73
- Per day
- 2¢
- Certified use
- 46 kWh/yr
- Screen size
- 27 in
- Panel
- IPS LCD
- On-mode power
- 14.81 W
- Sleep-mode power
- 0.18 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $8.08 | |
| Alaska | 27.4¢ | $13 | |
| Arizona | 15.5¢ | $7.19 | |
| Arkansas | 14.2¢ | $6.57 | |
| California | 35.3¢ | $16 | |
| Colorado | 16.5¢ | $7.68 | |
| Connecticut | 32.2¢ | $15 | |
| Delaware | 18.8¢ | $8.72 | |
| District of Columbia | 25.4¢ | $12 | |
| Florida | 15.4¢ | $7.14 | |
| Georgia | 15.4¢ | $7.13 | |
| Hawaiipriciest | 46.6¢ | $22 | |
| Idaho | 12.7¢ | $5.90 | |
| Illinois | 20.5¢ | $9.50 | |
| Indiana | 17.9¢ | $8.31 | |
| Iowa | 13.9¢ | $6.43 | |
| Kansas | 15.8¢ | $7.33 | |
| Kentucky | 15.0¢ | $6.97 | |
| Louisiana | 14.4¢ | $6.70 | |
| Maine | 28.4¢ | $13 | |
| Maryland | 22.1¢ | $10 | |
| Massachusetts | 29.4¢ | $14 | |
| Michigan | 21.4¢ | $9.93 | |
| Minnesota | 16.4¢ | $7.61 | |
| Mississippi | 16.8¢ | $7.78 | |
| Missouri | 14.0¢ | $6.50 | |
| Montana | 13.9¢ | $6.45 | |
| Nebraska | 13.3¢ | $6.16 | |
| Nevada | 14.3¢ | $6.63 | |
| New Hampshire | 27.2¢ | $13 | |
| New Jersey | 23.5¢ | $11 | |
| New Mexico | 15.2¢ | $7.03 | |
| New York | 29.4¢ | $14 | |
| North Carolina | 16.3¢ | $7.54 | |
| North Dakotacheapest | 12.3¢ | $5.73 | |
| Ohio | 19.5¢ | $9.05 | |
| Oklahoma | 13.3¢ | $6.18 | |
| Oregon | 15.8¢ | $7.33 | |
| Pennsylvania | 21.5¢ | $9.97 | |
| Rhode Island | 28.3¢ | $13 | |
| South Carolina | 17.1¢ | $7.92 | |
| South Dakota | 14.5¢ | $6.74 | |
| Tennessee | 14.9¢ | $6.94 | |
| Texas | 17.0¢ | $7.89 | |
| Utah | 13.3¢ | $6.17 | |
| Vermont | 24.6¢ | $11 | |
| Virginia | 17.4¢ | $8.07 | |
| Washington | 14.4¢ | $6.67 | |
| West Virginia | 16.1¢ | $7.46 | |
| Wisconsin | 19.2¢ | $8.92 | |
| Wyoming | 14.7¢ | $6.81 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ViewSonic VS19630 | 46 | $8.74 |
| PHILIPS 252B9 | 46 | $8.74 |
| DELL S2725Ht | 46 | $8.74 |
| Acer B247Y | 46 | $8.73 |
| V7 L270V0-HAS-E | 46 | $8.73 |
| EIZO FlexScan EV2456 | 46 | $8.75 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.72
- Per year
- $8.66
46 kWh/yr × 18.8¢/kWh = $8.66/yr
Prefilled with this model's certified 46 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 AOC 27E4U use?
- ENERGY STAR certifies the AOC 27E4U at 46 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 AOC 27E4U cost to run per month?
- About $0.73 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $8.74 a year. Your state's rate moves this up or down; see the table above.
- Is the AOC 27E4U energy efficient?
- It uses 3% more electricity than the median certified computer monitor.
- What does the AOC 27E4U cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $5.73 a year in North Dakota (12.3¢/kWh) and $22 in Hawaii (46.6¢/kWh).