Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
Lenovo C23238QE0
At the standardized usage ENERGY STAR assumes, the Lenovo C23238QE0 consumes 38 kWh a year — about $7.00 at the U.S. average electricity rate ($0.58 a month). Compared with the median certified computer monitor, it uses 15% less electricity — rank 407 out of 1530. The same unit costs $5.01 a year in Nevada but $20 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$7.00/yr
- Per month
- $0.58
- Per day
- 2¢
- Certified use
- 38 kWh/yr
- Screen size
- 24 in
- Panel
- IPS LCD
- On-mode power
- 12.21 W
- Sleep-mode power
- 0.13 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $6.26 | |
| Alaska | 28.2¢ | $11 | |
| Arizona | 15.2¢ | $5.80 | |
| Arkansas | 14.1¢ | $5.39 | |
| California | 34.7¢ | $13 | |
| Colorado | 17.1¢ | $6.54 | |
| Connecticut | 24.3¢ | $9.29 | |
| Delaware | 19.3¢ | $7.36 | |
| District of Columbia | 24.4¢ | $9.31 | |
| Florida | 15.1¢ | $5.77 | |
| Georgia | 16.4¢ | $6.25 | |
| Hawaiipriciest | 52.7¢ | $20 | |
| Idaho | 14.4¢ | $5.49 | |
| Illinois | 19.9¢ | $7.59 | |
| Indiana | 17.5¢ | $6.69 | |
| Iowa | 15.9¢ | $6.08 | |
| Kansas | 15.7¢ | $6.00 | |
| Kentucky | 14.3¢ | $5.44 | |
| Louisiana | 13.5¢ | $5.15 | |
| Maine | 29.6¢ | $11 | |
| Maryland | 21.8¢ | $8.34 | |
| Massachusetts | 29.6¢ | $11 | |
| Michigan | 23.0¢ | $8.78 | |
| Minnesota | 17.5¢ | $6.69 | |
| Mississippi | 14.9¢ | $5.68 | |
| Missouri | 16.2¢ | $6.19 | |
| Montana | 15.1¢ | $5.78 | |
| Nebraska | 13.3¢ | $5.06 | |
| Nevadacheapest | 13.1¢ | $5.01 | |
| New Hampshire | 27.0¢ | $10 | |
| New Jersey | 24.9¢ | $9.53 | |
| New Mexico | 15.1¢ | $5.75 | |
| New York | 29.5¢ | $11 | |
| North Carolina | 14.7¢ | $5.63 | |
| North Dakota | 14.1¢ | $5.39 | |
| Ohio | 19.2¢ | $7.33 | |
| Oklahoma | 14.3¢ | $5.47 | |
| Oregon | 16.3¢ | $6.23 | |
| Pennsylvania | 21.7¢ | $8.30 | |
| Rhode Island | 29.2¢ | $11 | |
| South Carolina | 15.6¢ | $5.94 | |
| South Dakota | 15.4¢ | $5.86 | |
| Tennessee | 14.1¢ | $5.37 | |
| Texas | 15.9¢ | $6.09 | |
| Utah | 13.4¢ | $5.10 | |
| Vermont | 24.4¢ | $9.33 | |
| Virginia | 17.2¢ | $6.57 | |
| Washington | 14.9¢ | $5.69 | |
| West Virginia | 15.4¢ | $5.90 | |
| Wisconsin | 19.6¢ | $7.47 | |
| Wyoming | 15.2¢ | $5.82 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| PHILIPS 240B7Q | 38 | $7.01 |
| ASUS VY279HG3most efficient | 38 | $6.99 |
| Lenovo D22e-20 | 38 | $7.01 |
| PHILIPS 24B2N32 | 38 | $6.99 |
| ASUS VY249HGR | 38 | $6.99 |
| Lenovo A24245FP0 | 38 | $7.02 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.58
- Per year
- $6.97
38 kWh/yr × 18.3¢/kWh = $6.97/yr
Prefilled with this model's certified 38 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 Lenovo C23238QE0 use?
- ENERGY STAR certifies the Lenovo C23238QE0 at 38 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 Lenovo C23238QE0 cost to run per month?
- About $0.58 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $7.00 a year. Your state's rate moves this up or down; see the table above.
- Is the Lenovo C23238QE0 energy efficient?
- It uses 15% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
- What does the Lenovo C23238QE0 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $5.01 a year in Nevada (13.1¢/kWh) and $20 in Hawaii (52.7¢/kWh).