Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
HP Engage 15t
At the standardized usage ENERGY STAR assumes, the HP Engage 15t consumes 21 kWh a year — about $3.93 at the U.S. average electricity rate ($0.33 a month). That puts it in the most efficient tenth of every certified computer monitor — 52% less electricity than the median, ranked 53 of 1530. The same unit costs $2.81 a year in Nevada but $11 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$3.93/yr
- Per month
- $0.33
- Per day
- 1¢
- Certified use
- 21 kWh/yr
- Screen size
- 15 in
- Panel
- TFT LCD
- On-mode power
- 6.26 W
- Sleep-mode power
- 0.39 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $3.51 | |
| Alaska | 28.2¢ | $6.04 | |
| Arizona | 15.2¢ | $3.25 | |
| Arkansas | 14.1¢ | $3.02 | |
| California | 34.7¢ | $7.44 | |
| Colorado | 17.1¢ | $3.67 | |
| Connecticut | 24.3¢ | $5.21 | |
| Delaware | 19.3¢ | $4.13 | |
| District of Columbia | 24.4¢ | $5.22 | |
| Florida | 15.1¢ | $3.23 | |
| Georgia | 16.4¢ | $3.50 | |
| Hawaiipriciest | 52.7¢ | $11 | |
| Idaho | 14.4¢ | $3.08 | |
| Illinois | 19.9¢ | $4.26 | |
| Indiana | 17.5¢ | $3.75 | |
| Iowa | 15.9¢ | $3.41 | |
| Kansas | 15.7¢ | $3.36 | |
| Kentucky | 14.3¢ | $3.05 | |
| Louisiana | 13.5¢ | $2.89 | |
| Maine | 29.6¢ | $6.34 | |
| Maryland | 21.8¢ | $4.68 | |
| Massachusetts | 29.6¢ | $6.34 | |
| Michigan | 23.0¢ | $4.92 | |
| Minnesota | 17.5¢ | $3.75 | |
| Mississippi | 14.9¢ | $3.19 | |
| Missouri | 16.2¢ | $3.47 | |
| Montana | 15.1¢ | $3.24 | |
| Nebraska | 13.3¢ | $2.84 | |
| Nevadacheapest | 13.1¢ | $2.81 | |
| New Hampshire | 27.0¢ | $5.78 | |
| New Jersey | 24.9¢ | $5.34 | |
| New Mexico | 15.1¢ | $3.22 | |
| New York | 29.5¢ | $6.31 | |
| North Carolina | 14.7¢ | $3.16 | |
| North Dakota | 14.1¢ | $3.02 | |
| Ohio | 19.2¢ | $4.11 | |
| Oklahoma | 14.3¢ | $3.07 | |
| Oregon | 16.3¢ | $3.49 | |
| Pennsylvania | 21.7¢ | $4.65 | |
| Rhode Island | 29.2¢ | $6.26 | |
| South Carolina | 15.6¢ | $3.33 | |
| South Dakota | 15.4¢ | $3.29 | |
| Tennessee | 14.1¢ | $3.01 | |
| Texas | 15.9¢ | $3.41 | |
| Utah | 13.4¢ | $2.86 | |
| Vermont | 24.4¢ | $5.23 | |
| Virginia | 17.2¢ | $3.69 | |
| Washington | 14.9¢ | $3.19 | |
| West Virginia | 15.4¢ | $3.31 | |
| Wisconsin | 19.6¢ | $4.19 | |
| Wyoming | 15.2¢ | $3.26 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ASUS MB16NCGmost efficient | 21 | $3.91 |
| Lenovo A21156FX0 | 21 | $3.91 |
| ASUS MB16AHV | 21 | $3.88 |
| ASUS MB16A | 22 | $3.97 |
| ASUS MB16A | 21 | $3.86 |
| MSI PRO MP165 E6 | 21 | $3.85 |
Run your own numbers
Your rate, your numbers
- Per day
- 1¢
- Per month
- $0.32
- Per year
- $3.85
21 kWh/yr × 18.3¢/kWh = $3.85/yr
Prefilled with this model's certified 21 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 Engage 15t use?
- ENERGY STAR certifies the HP Engage 15t at 21 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 Engage 15t cost to run per month?
- About $0.33 a month at the U.S. average residential rate (18.3¢/kWh) — 1¢ a day, or $3.93 a year. Your state's rate moves this up or down; see the table above.
- Is the HP Engage 15t energy efficient?
- It uses 52% less electricity than the median certified computer monitor, placing it in the top 10% of certified models.
- What does the HP Engage 15t cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $2.81 a year in Nevada (13.1¢/kWh) and $11 in Hawaii (52.7¢/kWh).