Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
Acer PE140WU_z
The Acer PE140WU_z's certified consumption is 11 kWh per year, which prices out to about $2.04 at the national average rate — your hours of use scale that directly. That puts it in the most efficient tenth of every certified computer monitor — 75% less electricity than the median, ranked 1 of 1530. Where you live moves the bill from $1.46 a year in Nevada to $5.86 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$2.04/yr
- Per month
- $0.17
- Per day
- 1¢
- Certified use
- 11 kWh/yr
- Screen size
- 14 in
- Panel
- TFT-LCD
- On-mode power
- 3.01 W
- Sleep-mode power
- 0.33 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $1.82 | |
| Alaska | 28.2¢ | $3.13 | |
| Arizona | 15.2¢ | $1.69 | |
| Arkansas | 14.1¢ | $1.57 | |
| California | 34.7¢ | $3.86 | |
| Colorado | 17.1¢ | $1.90 | |
| Connecticut | 24.3¢ | $2.70 | |
| Delaware | 19.3¢ | $2.14 | |
| District of Columbia | 24.4¢ | $2.71 | |
| Florida | 15.1¢ | $1.68 | |
| Georgia | 16.4¢ | $1.82 | |
| Hawaiipriciest | 52.7¢ | $5.86 | |
| Idaho | 14.4¢ | $1.60 | |
| Illinois | 19.9¢ | $2.21 | |
| Indiana | 17.5¢ | $1.95 | |
| Iowa | 15.9¢ | $1.77 | |
| Kansas | 15.7¢ | $1.75 | |
| Kentucky | 14.3¢ | $1.58 | |
| Louisiana | 13.5¢ | $1.50 | |
| Maine | 29.6¢ | $3.29 | |
| Maryland | 21.8¢ | $2.43 | |
| Massachusetts | 29.6¢ | $3.29 | |
| Michigan | 23.0¢ | $2.55 | |
| Minnesota | 17.5¢ | $1.95 | |
| Mississippi | 14.9¢ | $1.65 | |
| Missouri | 16.2¢ | $1.80 | |
| Montana | 15.1¢ | $1.68 | |
| Nebraska | 13.3¢ | $1.47 | |
| Nevadacheapest | 13.1¢ | $1.46 | |
| New Hampshire | 27.0¢ | $3.00 | |
| New Jersey | 24.9¢ | $2.77 | |
| New Mexico | 15.1¢ | $1.67 | |
| New York | 29.5¢ | $3.28 | |
| North Carolina | 14.7¢ | $1.64 | |
| North Dakota | 14.1¢ | $1.57 | |
| Ohio | 19.2¢ | $2.13 | |
| Oklahoma | 14.3¢ | $1.59 | |
| Oregon | 16.3¢ | $1.81 | |
| Pennsylvania | 21.7¢ | $2.41 | |
| Rhode Island | 29.2¢ | $3.25 | |
| South Carolina | 15.6¢ | $1.73 | |
| South Dakota | 15.4¢ | $1.71 | |
| Tennessee | 14.1¢ | $1.56 | |
| Texas | 15.9¢ | $1.77 | |
| Utah | 13.4¢ | $1.49 | |
| Vermont | 24.4¢ | $2.72 | |
| Virginia | 17.2¢ | $1.91 | |
| Washington | 14.9¢ | $1.66 | |
| West Virginia | 15.4¢ | $1.72 | |
| Wisconsin | 19.6¢ | $2.17 | |
| Wyoming | 15.2¢ | $1.69 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ELO ET1304LSN | 13 | $2.34 |
| HP HP E14 G4most efficient | 13 | $2.35 |
| DELL P1424Hf | 13 | $2.47 |
| VAIO VJ5VP141XXXXmost efficient | 14 | $2.62 |
| Wacom One DTC141 | 14 | $2.65 |
| PLANAR PM16-S | 14 | $2.66 |
Run your own numbers
Your rate, your numbers
- Per day
- 1¢
- Per month
- $0.17
- Per year
- $2.02
11 kWh/yr × 18.3¢/kWh = $2.02/yr
Prefilled with this model's certified 11 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 Acer PE140WU_z use?
- ENERGY STAR certifies the Acer PE140WU_z at 11 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 Acer PE140WU_z cost to run per month?
- About $0.17 a month at the U.S. average residential rate (18.3¢/kWh) — 1¢ a day, or $2.04 a year. Your state's rate moves this up or down; see the table above.
- Is the Acer PE140WU_z energy efficient?
- It uses 75% less electricity than the median certified computer monitor, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
- What does the Acer PE140WU_z cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $1.46 a year in Nevada (13.1¢/kWh) and $5.86 in Hawaii (52.7¢/kWh).