Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
Lenovo S22i-30
At the standardized usage ENERGY STAR assumes, the Lenovo S22i-30 consumes 38 kWh a year — about $6.98 at the U.S. average electricity rate ($0.58 a month). Compared with the median certified computer monitor, it uses 15% less electricity — rank 400 out of 1530. Where you live moves the bill from $4.99 a year in Nevada to $20 in Hawaii.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$6.98/yr
- Per month
- $0.58
- Per day
- 2¢
- Certified use
- 38 kWh/yr
- Screen size
- 21.5 in
- Panel
- IPS LCD
- On-mode power
- 12.08 W
- Sleep-mode power
- 0.18 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $6.24 | |
| Alaska | 28.2¢ | $11 | |
| Arizona | 15.2¢ | $5.78 | |
| Arkansas | 14.1¢ | $5.38 | |
| California | 34.7¢ | $13 | |
| Colorado | 17.1¢ | $6.52 | |
| Connecticut | 24.3¢ | $9.26 | |
| Delaware | 19.3¢ | $7.34 | |
| District of Columbia | 24.4¢ | $9.29 | |
| Florida | 15.1¢ | $5.75 | |
| Georgia | 16.4¢ | $6.23 | |
| Hawaiipriciest | 52.7¢ | $20 | |
| Idaho | 14.4¢ | $5.47 | |
| Illinois | 19.9¢ | $7.57 | |
| Indiana | 17.5¢ | $6.67 | |
| Iowa | 15.9¢ | $6.06 | |
| Kansas | 15.7¢ | $5.98 | |
| Kentucky | 14.3¢ | $5.43 | |
| Louisiana | 13.5¢ | $5.14 | |
| Maine | 29.6¢ | $11 | |
| Maryland | 21.8¢ | $8.31 | |
| Massachusetts | 29.6¢ | $11 | |
| Michigan | 23.0¢ | $8.75 | |
| Minnesota | 17.5¢ | $6.67 | |
| Mississippi | 14.9¢ | $5.66 | |
| Missouri | 16.2¢ | $6.17 | |
| Montana | 15.1¢ | $5.76 | |
| Nebraska | 13.3¢ | $5.04 | |
| Nevadacheapest | 13.1¢ | $4.99 | |
| New Hampshire | 27.0¢ | $10 | |
| New Jersey | 24.9¢ | $9.50 | |
| New Mexico | 15.1¢ | $5.73 | |
| New York | 29.5¢ | $11 | |
| North Carolina | 14.7¢ | $5.61 | |
| North Dakota | 14.1¢ | $5.38 | |
| Ohio | 19.2¢ | $7.31 | |
| Oklahoma | 14.3¢ | $5.46 | |
| Oregon | 16.3¢ | $6.21 | |
| Pennsylvania | 21.7¢ | $8.27 | |
| Rhode Island | 29.2¢ | $11 | |
| South Carolina | 15.6¢ | $5.92 | |
| South Dakota | 15.4¢ | $5.85 | |
| Tennessee | 14.1¢ | $5.36 | |
| Texas | 15.9¢ | $6.07 | |
| Utah | 13.4¢ | $5.09 | |
| Vermont | 24.4¢ | $9.30 | |
| Virginia | 17.2¢ | $6.56 | |
| Washington | 14.9¢ | $5.68 | |
| West Virginia | 15.4¢ | $5.88 | |
| Wisconsin | 19.6¢ | $7.45 | |
| Wyoming | 15.2¢ | $5.80 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Sharp DD-EA241W | 38 | $6.98 |
| ASUS MB229 | 38 | $6.99 |
| Lenovo D17238FE1 | 38 | $6.99 |
| PHILIPS 22B2N32 | 38 | $6.99 |
| ASUS VY249HGR | 38 | $6.99 |
| YASHI YZ2748 | 38 | $6.97 |
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 S22i-30 use?
- ENERGY STAR certifies the Lenovo S22i-30 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 S22i-30 cost to run per month?
- About $0.58 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $6.98 a year. Your state's rate moves this up or down; see the table above.
- Is the Lenovo S22i-30 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 S22i-30 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $4.99 a year in Nevada (13.1¢/kWh) and $20 in Hawaii (52.7¢/kWh).