Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
COMPUMAX MLCX22
At the standardized usage ENERGY STAR assumes, the COMPUMAX MLCX22 consumes 29 kWh a year — about $5.30 at the U.S. average electricity rate ($0.44 a month). That puts it in the most efficient tenth of every certified computer monitor — 36% less electricity than the median, ranked 100 of 1530. Where you live moves the bill from $3.79 a year in Nevada to $15 in Hawaii.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$5.30/yr
- Per month
- $0.44
- Per day
- 1¢
- Certified use
- 29 kWh/yr
- Screen size
- 21.5 in
- Panel
- IPS LCD
- On-mode power
- 9.19 W
- Sleep-mode power
- 0.13 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $4.74 | |
| Alaska | 28.2¢ | $8.16 | |
| Arizona | 15.2¢ | $4.39 | |
| Arkansas | 14.1¢ | $4.08 | |
| California | 34.7¢ | $10 | |
| Colorado | 17.1¢ | $4.95 | |
| Connecticut | 24.3¢ | $7.03 | |
| Delaware | 19.3¢ | $5.58 | |
| District of Columbia | 24.4¢ | $7.05 | |
| Florida | 15.1¢ | $4.37 | |
| Georgia | 16.4¢ | $4.73 | |
| Hawaiipriciest | 52.7¢ | $15 | |
| Idaho | 14.4¢ | $4.15 | |
| Illinois | 19.9¢ | $5.75 | |
| Indiana | 17.5¢ | $5.06 | |
| Iowa | 15.9¢ | $4.61 | |
| Kansas | 15.7¢ | $4.54 | |
| Kentucky | 14.3¢ | $4.12 | |
| Louisiana | 13.5¢ | $3.90 | |
| Maine | 29.6¢ | $8.55 | |
| Maryland | 21.8¢ | $6.31 | |
| Massachusetts | 29.6¢ | $8.56 | |
| Michigan | 23.0¢ | $6.65 | |
| Minnesota | 17.5¢ | $5.07 | |
| Mississippi | 14.9¢ | $4.30 | |
| Missouri | 16.2¢ | $4.69 | |
| Montana | 15.1¢ | $4.38 | |
| Nebraska | 13.3¢ | $3.83 | |
| Nevadacheapest | 13.1¢ | $3.79 | |
| New Hampshire | 27.0¢ | $7.81 | |
| New Jersey | 24.9¢ | $7.21 | |
| New Mexico | 15.1¢ | $4.35 | |
| New York | 29.5¢ | $8.53 | |
| North Carolina | 14.7¢ | $4.26 | |
| North Dakota | 14.1¢ | $4.08 | |
| Ohio | 19.2¢ | $5.55 | |
| Oklahoma | 14.3¢ | $4.14 | |
| Oregon | 16.3¢ | $4.72 | |
| Pennsylvania | 21.7¢ | $6.28 | |
| Rhode Island | 29.2¢ | $8.45 | |
| South Carolina | 15.6¢ | $4.50 | |
| South Dakota | 15.4¢ | $4.44 | |
| Tennessee | 14.1¢ | $4.07 | |
| Texas | 15.9¢ | $4.61 | |
| Utah | 13.4¢ | $3.87 | |
| Vermont | 24.4¢ | $7.07 | |
| Virginia | 17.2¢ | $4.98 | |
| Washington | 14.9¢ | $4.31 | |
| West Virginia | 15.4¢ | $4.47 | |
| Wisconsin | 19.6¢ | $5.65 | |
| Wyoming | 15.2¢ | $4.41 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ViewSonic VS17551most efficient | 29 | $5.31 |
| Acer PE160WU_z | 29 | $5.29 |
| ASUS VU249Hmost efficient | 29 | $5.33 |
| COMPUMAX ML2020CM | 29 | $5.25 |
| PHILIPS 27B2G5200most efficient | 29 | $5.38 |
| PHILIPS 170S9 | 28 | $5.22 |
Run your own numbers
Your rate, your numbers
- Per day
- 1¢
- Per month
- $0.44
- Per year
- $5.32
29 kWh/yr × 18.3¢/kWh = $5.32/yr
Prefilled with this model's certified 29 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 COMPUMAX MLCX22 use?
- ENERGY STAR certifies the COMPUMAX MLCX22 at 29 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 COMPUMAX MLCX22 cost to run per month?
- About $0.44 a month at the U.S. average residential rate (18.3¢/kWh) — 1¢ a day, or $5.30 a year. Your state's rate moves this up or down; see the table above.
- Is the COMPUMAX MLCX22 energy efficient?
- It uses 36% less electricity than the median certified computer monitor, placing it in the top 10% of certified models.
- What does the COMPUMAX MLCX22 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $3.79 a year in Nevada (13.1¢/kWh) and $15 in Hawaii (52.7¢/kWh).