Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
ViewSonic VS18811
The ViewSonic VS18811's certified consumption is 38 kWh per year, which prices out to about $7.08 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 351 out of 1482. Where you live moves the bill from $4.64 a year in North Dakota to $18 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$7.08/yr
- Per month
- $0.59
- Per day
- 2¢
- Certified use
- 38 kWh/yr
- Screen size
- 21.5 in
- Panel
- IPS LCD
- On-mode power
- 12.02 W
- Sleep-mode power
- 0.13 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $6.54 | |
| Alaska | 27.4¢ | $10 | |
| Arizona | 15.5¢ | $5.82 | |
| Arkansas | 14.2¢ | $5.32 | |
| California | 35.3¢ | $13 | |
| Colorado | 16.5¢ | $6.22 | |
| Connecticut | 32.2¢ | $12 | |
| Delaware | 18.8¢ | $7.06 | |
| District of Columbia | 25.4¢ | $9.55 | |
| Florida | 15.4¢ | $5.78 | |
| Georgia | 15.4¢ | $5.78 | |
| Hawaiipriciest | 46.6¢ | $18 | |
| Idaho | 12.7¢ | $4.77 | |
| Illinois | 20.5¢ | $7.69 | |
| Indiana | 17.9¢ | $6.73 | |
| Iowa | 13.9¢ | $5.21 | |
| Kansas | 15.8¢ | $5.93 | |
| Kentucky | 15.0¢ | $5.64 | |
| Louisiana | 14.4¢ | $5.43 | |
| Maine | 28.4¢ | $11 | |
| Maryland | 22.1¢ | $8.29 | |
| Massachusetts | 29.4¢ | $11 | |
| Michigan | 21.4¢ | $8.04 | |
| Minnesota | 16.4¢ | $6.16 | |
| Mississippi | 16.8¢ | $6.30 | |
| Missouri | 14.0¢ | $5.26 | |
| Montana | 13.9¢ | $5.22 | |
| Nebraska | 13.3¢ | $4.99 | |
| Nevada | 14.3¢ | $5.37 | |
| New Hampshire | 27.2¢ | $10 | |
| New Jersey | 23.5¢ | $8.84 | |
| New Mexico | 15.2¢ | $5.69 | |
| New York | 29.4¢ | $11 | |
| North Carolina | 16.3¢ | $6.11 | |
| North Dakotacheapest | 12.3¢ | $4.64 | |
| Ohio | 19.5¢ | $7.32 | |
| Oklahoma | 13.3¢ | $5.00 | |
| Oregon | 15.8¢ | $5.93 | |
| Pennsylvania | 21.5¢ | $8.07 | |
| Rhode Island | 28.3¢ | $11 | |
| South Carolina | 17.1¢ | $6.41 | |
| South Dakota | 14.5¢ | $5.46 | |
| Tennessee | 14.9¢ | $5.61 | |
| Texas | 17.0¢ | $6.38 | |
| Utah | 13.3¢ | $4.99 | |
| Vermont | 24.6¢ | $9.23 | |
| Virginia | 17.4¢ | $6.53 | |
| Washington | 14.4¢ | $5.40 | |
| West Virginia | 16.1¢ | $6.04 | |
| Wisconsin | 19.2¢ | $7.22 | |
| Wyoming | 14.7¢ | $5.52 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ViewSonic VS19150 | 38 | $7.08 |
| Samsung S27HG31*** (* = 0-9, A-Z or blank) | 38 | $7.08 |
| ViewSonic VS20379 | 38 | $7.08 |
| Lenovo A25270FS0most efficient | 38 | $7.08 |
| ASUS VP227HF | 38 | $7.09 |
| MSI PRO MP251 E14A | 38 | $7.09 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.60
- Per year
- $7.16
38 kWh/yr × 18.8¢/kWh = $7.16/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 ViewSonic VS18811 use?
- ENERGY STAR certifies the ViewSonic VS18811 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 ViewSonic VS18811 cost to run per month?
- About $0.59 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $7.08 a year. Your state's rate moves this up or down; see the table above.
- Is the ViewSonic VS18811 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 ViewSonic VS18811 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $4.64 a year in North Dakota (12.3¢/kWh) and $18 in Hawaii (46.6¢/kWh).