Data through April 2026
Running cost · Computer Monitors · ENERGY STAR certified
HP HP 724pn
At the standardized usage ENERGY STAR assumes, the HP HP 724pn consumes 35 kWh a year — about $6.59 at the U.S. average electricity rate ($0.55 a month). That's 22% less than the median certified computer monitor, placing it comfortably in the efficient third of the field (227 of 1482). Where you live moves the bill from $4.32 a year in North Dakota to $16 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$6.59/yr
- Per month
- $0.55
- Per day
- 2¢
- Certified use
- 35 kWh/yr
- Screen size
- 24 in
- Panel
- IPS LCD
- On-mode power
- 11.05 W
- Sleep-mode power
- 0.2 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $6.10 | |
| Alaska | 27.4¢ | $9.58 | |
| Arizona | 15.5¢ | $5.42 | |
| Arkansas | 14.2¢ | $4.96 | |
| California | 35.3¢ | $12 | |
| Colorado | 16.5¢ | $5.79 | |
| Connecticut | 32.2¢ | $11 | |
| Delaware | 18.8¢ | $6.58 | |
| District of Columbia | 25.4¢ | $8.90 | |
| Florida | 15.4¢ | $5.39 | |
| Georgia | 15.4¢ | $5.38 | |
| Hawaiipriciest | 46.6¢ | $16 | |
| Idaho | 12.7¢ | $4.45 | |
| Illinois | 20.5¢ | $7.17 | |
| Indiana | 17.9¢ | $6.27 | |
| Iowa | 13.9¢ | $4.85 | |
| Kansas | 15.8¢ | $5.53 | |
| Kentucky | 15.0¢ | $5.26 | |
| Louisiana | 14.4¢ | $5.06 | |
| Maine | 28.4¢ | $9.95 | |
| Maryland | 22.1¢ | $7.73 | |
| Massachusetts | 29.4¢ | $10 | |
| Michigan | 21.4¢ | $7.49 | |
| Minnesota | 16.4¢ | $5.74 | |
| Mississippi | 16.8¢ | $5.87 | |
| Missouri | 14.0¢ | $4.91 | |
| Montana | 13.9¢ | $4.87 | |
| Nebraska | 13.3¢ | $4.65 | |
| Nevada | 14.3¢ | $5.00 | |
| New Hampshire | 27.2¢ | $9.54 | |
| New Jersey | 23.5¢ | $8.24 | |
| New Mexico | 15.2¢ | $5.31 | |
| New York | 29.4¢ | $10 | |
| North Carolina | 16.3¢ | $5.69 | |
| North Dakotacheapest | 12.3¢ | $4.32 | |
| Ohio | 19.5¢ | $6.83 | |
| Oklahoma | 13.3¢ | $4.66 | |
| Oregon | 15.8¢ | $5.53 | |
| Pennsylvania | 21.5¢ | $7.52 | |
| Rhode Island | 28.3¢ | $9.91 | |
| South Carolina | 17.1¢ | $5.97 | |
| South Dakota | 14.5¢ | $5.08 | |
| Tennessee | 14.9¢ | $5.23 | |
| Texas | 17.0¢ | $5.95 | |
| Utah | 13.3¢ | $4.65 | |
| Vermont | 24.6¢ | $8.60 | |
| Virginia | 17.4¢ | $6.09 | |
| Washington | 14.4¢ | $5.03 | |
| West Virginia | 16.1¢ | $5.62 | |
| Wisconsin | 19.2¢ | $6.73 | |
| Wyoming | 14.7¢ | $5.14 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| MSI PRO MP225 E12L | 35 | $6.60 |
| ASUS VP228 | 35 | $6.59 |
| PHILIPS 27B2G5500most efficient | 35 | $6.60 |
| MSI PRO MP223 | 35 | $6.59 |
| ViewSonic VS19363 | 35 | $6.59 |
| ViewSonic VS20410 | 35 | $6.59 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.55
- Per year
- $6.59
35 kWh/yr × 18.8¢/kWh = $6.59/yr
Prefilled with this model's certified 35 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 HP HP 724pn use?
- ENERGY STAR certifies the HP HP 724pn at 35 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 HP HP 724pn cost to run per month?
- About $0.55 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $6.59 a year. Your state's rate moves this up or down; see the table above.
- Is the HP HP 724pn energy efficient?
- It uses 22% less electricity than the median certified computer monitor, placing it in the efficient third of certified models.
- What does the HP HP 724pn cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $4.32 a year in North Dakota (12.3¢/kWh) and $16 in Hawaii (46.6¢/kWh).