Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
LG 22MP55PJ
The LG 22MP55PJ's certified consumption is 37 kWh per year, which prices out to about $6.88 at the national average rate — your hours of use scale that directly. Compared with the median certified computer monitor, it uses 17% less electricity — rank 366 out of 1530. Where you live moves the bill from $4.91 a year in Nevada to $20 in Hawaii.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$6.88/yr
- Per month
- $0.57
- Per day
- 2¢
- Certified use
- 37 kWh/yr
- Screen size
- 21.5 in
- Panel
- IPS LCD
- On-mode power
- 11.93 W
- Sleep-mode power
- 0.16 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $6.15 | |
| Alaska | 28.2¢ | $11 | |
| Arizona | 15.2¢ | $5.69 | |
| Arkansas | 14.1¢ | $5.29 | |
| California | 34.7¢ | $13 | |
| Colorado | 17.1¢ | $6.42 | |
| Connecticut | 24.3¢ | $9.12 | |
| Delaware | 19.3¢ | $7.23 | |
| District of Columbia | 24.4¢ | $9.14 | |
| Florida | 15.1¢ | $5.66 | |
| Georgia | 16.4¢ | $6.13 | |
| Hawaiipriciest | 52.7¢ | $20 | |
| Idaho | 14.4¢ | $5.39 | |
| Illinois | 19.9¢ | $7.46 | |
| Indiana | 17.5¢ | $6.56 | |
| Iowa | 15.9¢ | $5.97 | |
| Kansas | 15.7¢ | $5.89 | |
| Kentucky | 14.3¢ | $5.35 | |
| Louisiana | 13.5¢ | $5.06 | |
| Maine | 29.6¢ | $11 | |
| Maryland | 21.8¢ | $8.19 | |
| Massachusetts | 29.6¢ | $11 | |
| Michigan | 23.0¢ | $8.62 | |
| Minnesota | 17.5¢ | $6.57 | |
| Mississippi | 14.9¢ | $5.58 | |
| Missouri | 16.2¢ | $6.08 | |
| Montana | 15.1¢ | $5.68 | |
| Nebraska | 13.3¢ | $4.97 | |
| Nevadacheapest | 13.1¢ | $4.91 | |
| New Hampshire | 27.0¢ | $10 | |
| New Jersey | 24.9¢ | $9.35 | |
| New Mexico | 15.1¢ | $5.65 | |
| New York | 29.5¢ | $11 | |
| North Carolina | 14.7¢ | $5.53 | |
| North Dakota | 14.1¢ | $5.29 | |
| Ohio | 19.2¢ | $7.19 | |
| Oklahoma | 14.3¢ | $5.37 | |
| Oregon | 16.3¢ | $6.12 | |
| Pennsylvania | 21.7¢ | $8.15 | |
| Rhode Island | 29.2¢ | $11 | |
| South Carolina | 15.6¢ | $5.83 | |
| South Dakota | 15.4¢ | $5.76 | |
| Tennessee | 14.1¢ | $5.27 | |
| Texas | 15.9¢ | $5.98 | |
| Utah | 13.4¢ | $5.01 | |
| Vermont | 24.4¢ | $9.16 | |
| Virginia | 17.2¢ | $6.46 | |
| Washington | 14.9¢ | $5.59 | |
| West Virginia | 15.4¢ | $5.79 | |
| Wisconsin | 19.6¢ | $7.33 | |
| Wyoming | 15.2¢ | $5.71 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| LG 22BN550Y | 37 | $6.88 |
| Acer ASV15-1B | 37 | $6.87 |
| LG 24BF440B | 37 | $6.87 |
| DELL E2318HNf | 37 | $6.87 |
| Lenovo F22238F** ( “*” can be A-Z, a-z, 0-9, /, \, hyphen, +, - or blank) | 37 | $6.86 |
| ViewSonic VS18811 | 38 | $6.89 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.57
- Per year
- $6.79
37 kWh/yr × 18.3¢/kWh = $6.79/yr
Prefilled with this model's certified 37 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 LG 22MP55PJ use?
- ENERGY STAR certifies the LG 22MP55PJ at 37 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 LG 22MP55PJ cost to run per month?
- About $0.57 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $6.88 a year. Your state's rate moves this up or down; see the table above.
- Is the LG 22MP55PJ energy efficient?
- It uses 17% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
- What does the LG 22MP55PJ cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $4.91 a year in Nevada (13.1¢/kWh) and $20 in Hawaii (52.7¢/kWh).