Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
ASUS VP229Q
At the standardized usage ENERGY STAR assumes, the ASUS VP229Q consumes 30 kWh a year — about $5.64 at the U.S. average electricity rate ($0.47 a month). Only a handful of certified computer monitors do better: it ranks 109 of 1482 and undercuts the median by 34%. Where you live moves the bill from $3.70 a year in North Dakota to $14 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$5.64/yr
- Per month
- $0.47
- Per day
- 2¢
- Certified use
- 30 kWh/yr
- Screen size
- 21.5 in
- Panel
- IPS LCD
- On-mode power
- 9.52 W
- Sleep-mode power
- 0.13 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $5.21 | |
| Alaska | 27.4¢ | $8.19 | |
| Arizona | 15.5¢ | $4.63 | |
| Arkansas | 14.2¢ | $4.24 | |
| California | 35.3¢ | $11 | |
| Colorado | 16.5¢ | $4.95 | |
| Connecticut | 32.2¢ | $9.65 | |
| Delaware | 18.8¢ | $5.62 | |
| District of Columbia | 25.4¢ | $7.61 | |
| Florida | 15.4¢ | $4.60 | |
| Georgia | 15.4¢ | $4.60 | |
| Hawaiipriciest | 46.6¢ | $14 | |
| Idaho | 12.7¢ | $3.80 | |
| Illinois | 20.5¢ | $6.13 | |
| Indiana | 17.9¢ | $5.36 | |
| Iowa | 13.9¢ | $4.15 | |
| Kansas | 15.8¢ | $4.72 | |
| Kentucky | 15.0¢ | $4.50 | |
| Louisiana | 14.4¢ | $4.32 | |
| Maine | 28.4¢ | $8.51 | |
| Maryland | 22.1¢ | $6.61 | |
| Massachusetts | 29.4¢ | $8.81 | |
| Michigan | 21.4¢ | $6.40 | |
| Minnesota | 16.4¢ | $4.91 | |
| Mississippi | 16.8¢ | $5.02 | |
| Missouri | 14.0¢ | $4.19 | |
| Montana | 13.9¢ | $4.16 | |
| Nebraska | 13.3¢ | $3.97 | |
| Nevada | 14.3¢ | $4.28 | |
| New Hampshire | 27.2¢ | $8.15 | |
| New Jersey | 23.5¢ | $7.04 | |
| New Mexico | 15.2¢ | $4.53 | |
| New York | 29.4¢ | $8.81 | |
| North Carolina | 16.3¢ | $4.86 | |
| North Dakotacheapest | 12.3¢ | $3.70 | |
| Ohio | 19.5¢ | $5.83 | |
| Oklahoma | 13.3¢ | $3.98 | |
| Oregon | 15.8¢ | $4.72 | |
| Pennsylvania | 21.5¢ | $6.43 | |
| Rhode Island | 28.3¢ | $8.47 | |
| South Carolina | 17.1¢ | $5.11 | |
| South Dakota | 14.5¢ | $4.35 | |
| Tennessee | 14.9¢ | $4.47 | |
| Texas | 17.0¢ | $5.09 | |
| Utah | 13.3¢ | $3.98 | |
| Vermont | 24.6¢ | $7.35 | |
| Virginia | 17.4¢ | $5.20 | |
| Washington | 14.4¢ | $4.30 | |
| West Virginia | 16.1¢ | $4.81 | |
| Wisconsin | 19.2¢ | $5.75 | |
| Wyoming | 14.7¢ | $4.39 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Acer V206HQL | 30 | $5.65 |
| ELO ET1564L | 30 | $5.62 |
| Acer B247Y_vmost efficient | 30 | $5.61 |
| Acer B277_vmost efficient | 30 | $5.66 |
| ViewSonic VS20655most efficient | 30 | $5.61 |
| ASUS PA248QVmost efficient | 30 | $5.59 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.47
- Per year
- $5.65
30 kWh/yr × 18.8¢/kWh = $5.65/yr
Prefilled with this model's certified 30 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 ASUS VP229Q use?
- ENERGY STAR certifies the ASUS VP229Q at 30 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 ASUS VP229Q cost to run per month?
- About $0.47 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $5.64 a year. Your state's rate moves this up or down; see the table above.
- Is the ASUS VP229Q energy efficient?
- It uses 34% less electricity than the median certified computer monitor, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
- What does the ASUS VP229Q cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $3.70 a year in North Dakota (12.3¢/kWh) and $14 in Hawaii (46.6¢/kWh).