Data through June 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 $5.49 at the U.S. average electricity rate ($0.46 a month). Only a handful of certified computer monitors do better: it ranks 113 of 1530 and undercuts the median by 34%. Where you live moves the bill from $3.92 a year in Nevada to $16 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$5.49/yr
- Per month
- $0.46
- 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 | 16.4¢ | $4.91 | |
| Alaska | 28.2¢ | $8.44 | |
| Arizona | 15.2¢ | $4.54 | |
| Arkansas | 14.1¢ | $4.23 | |
| California | 34.7¢ | $10 | |
| Colorado | 17.1¢ | $5.13 | |
| Connecticut | 24.3¢ | $7.28 | |
| Delaware | 19.3¢ | $5.77 | |
| District of Columbia | 24.4¢ | $7.30 | |
| Florida | 15.1¢ | $4.52 | |
| Georgia | 16.4¢ | $4.90 | |
| Hawaiipriciest | 52.7¢ | $16 | |
| Idaho | 14.4¢ | $4.30 | |
| Illinois | 19.9¢ | $5.95 | |
| Indiana | 17.5¢ | $5.24 | |
| Iowa | 15.9¢ | $4.77 | |
| Kansas | 15.7¢ | $4.70 | |
| Kentucky | 14.3¢ | $4.27 | |
| Louisiana | 13.5¢ | $4.04 | |
| Maine | 29.6¢ | $8.86 | |
| Maryland | 21.8¢ | $6.54 | |
| Massachusetts | 29.6¢ | $8.86 | |
| Michigan | 23.0¢ | $6.88 | |
| Minnesota | 17.5¢ | $5.24 | |
| Mississippi | 14.9¢ | $4.45 | |
| Missouri | 16.2¢ | $4.85 | |
| Montana | 15.1¢ | $4.53 | |
| Nebraska | 13.3¢ | $3.97 | |
| Nevadacheapest | 13.1¢ | $3.92 | |
| New Hampshire | 27.0¢ | $8.08 | |
| New Jersey | 24.9¢ | $7.47 | |
| New Mexico | 15.1¢ | $4.51 | |
| New York | 29.5¢ | $8.83 | |
| North Carolina | 14.7¢ | $4.41 | |
| North Dakota | 14.1¢ | $4.23 | |
| Ohio | 19.2¢ | $5.74 | |
| Oklahoma | 14.3¢ | $4.29 | |
| Oregon | 16.3¢ | $4.88 | |
| Pennsylvania | 21.7¢ | $6.50 | |
| Rhode Island | 29.2¢ | $8.75 | |
| South Carolina | 15.6¢ | $4.65 | |
| South Dakota | 15.4¢ | $4.60 | |
| Tennessee | 14.1¢ | $4.21 | |
| Texas | 15.9¢ | $4.77 | |
| Utah | 13.4¢ | $4.00 | |
| Vermont | 24.4¢ | $7.31 | |
| Virginia | 17.2¢ | $5.15 | |
| Washington | 14.9¢ | $4.46 | |
| West Virginia | 15.4¢ | $4.62 | |
| Wisconsin | 19.6¢ | $5.85 | |
| Wyoming | 15.2¢ | $4.56 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ASUS VA249HG2most efficient | 30 | $5.49 |
| Acer V206HQL | 30 | $5.50 |
| ELO ET1564L | 30 | $5.47 |
| Acer B247Y_vmost efficient | 30 | $5.47 |
| Acer B277_vmost efficient | 30 | $5.51 |
| ViewSonic VS20655most efficient | 30 | $5.46 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.46
- Per year
- $5.50
30 kWh/yr × 18.3¢/kWh = $5.50/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 $0.46 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $5.49 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 $3.92 a year in Nevada (13.1¢/kWh) and $16 in Hawaii (52.7¢/kWh).