Data through April 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 $4.03 at the U.S. average electricity rate ($0.34 a month). That puts it in the most efficient tenth of every certified computer monitor — 53% less electricity than the median, ranked 52 of 1482. The same unit costs $2.64 a year in North Dakota but $9.98 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$4.03/yr
- Per month
- $0.34
- 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 | 17.4¢ | $3.73 | |
| Alaska | 27.4¢ | $5.86 | |
| Arizona | 15.5¢ | $3.31 | |
| Arkansas | 14.2¢ | $3.03 | |
| California | 35.3¢ | $7.55 | |
| Colorado | 16.5¢ | $3.54 | |
| Connecticut | 32.2¢ | $6.90 | |
| Delaware | 18.8¢ | $4.02 | |
| District of Columbia | 25.4¢ | $5.44 | |
| Florida | 15.4¢ | $3.29 | |
| Georgia | 15.4¢ | $3.29 | |
| Hawaiipriciest | 46.6¢ | $9.98 | |
| Idaho | 12.7¢ | $2.72 | |
| Illinois | 20.5¢ | $4.38 | |
| Indiana | 17.9¢ | $3.83 | |
| Iowa | 13.9¢ | $2.97 | |
| Kansas | 15.8¢ | $3.38 | |
| Kentucky | 15.0¢ | $3.22 | |
| Louisiana | 14.4¢ | $3.09 | |
| Maine | 28.4¢ | $6.08 | |
| Maryland | 22.1¢ | $4.73 | |
| Massachusetts | 29.4¢ | $6.31 | |
| Michigan | 21.4¢ | $4.58 | |
| Minnesota | 16.4¢ | $3.51 | |
| Mississippi | 16.8¢ | $3.59 | |
| Missouri | 14.0¢ | $3.00 | |
| Montana | 13.9¢ | $2.98 | |
| Nebraska | 13.3¢ | $2.84 | |
| Nevada | 14.3¢ | $3.06 | |
| New Hampshire | 27.2¢ | $5.83 | |
| New Jersey | 23.5¢ | $5.04 | |
| New Mexico | 15.2¢ | $3.24 | |
| New York | 29.4¢ | $6.31 | |
| North Carolina | 16.3¢ | $3.48 | |
| North Dakotacheapest | 12.3¢ | $2.64 | |
| Ohio | 19.5¢ | $4.17 | |
| Oklahoma | 13.3¢ | $2.85 | |
| Oregon | 15.8¢ | $3.38 | |
| Pennsylvania | 21.5¢ | $4.60 | |
| Rhode Island | 28.3¢ | $6.06 | |
| South Carolina | 17.1¢ | $3.65 | |
| South Dakota | 14.5¢ | $3.11 | |
| Tennessee | 14.9¢ | $3.20 | |
| Texas | 17.0¢ | $3.64 | |
| Utah | 13.3¢ | $2.85 | |
| Vermont | 24.6¢ | $5.26 | |
| Virginia | 17.4¢ | $3.72 | |
| Washington | 14.4¢ | $3.07 | |
| West Virginia | 16.1¢ | $3.44 | |
| Wisconsin | 19.2¢ | $4.11 | |
| Wyoming | 14.7¢ | $3.14 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| ASUS MB16NCGmost efficient | 21 | $4.01 |
| Lenovo A21156FX0 | 21 | $4.01 |
| ASUS MB16AHV | 21 | $3.99 |
| ASUS MB16A | 22 | $4.08 |
| ASUS MB16A | 21 | $3.96 |
| MSI PRO MP165 E6 | 21 | $3.95 |
Run your own numbers
Your rate, your numbers
- Per day
- 1¢
- Per month
- $0.33
- Per year
- $3.95
21 kWh/yr × 18.8¢/kWh = $3.95/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 $0.34 a month at the U.S. average residential rate (18.8¢/kWh) — 1¢ a day, or $4.03 a year. Your state's rate moves this up or down; see the table above.
- Is the HP Engage 15t energy efficient?
- It uses 53% 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 $2.64 a year in North Dakota (12.3¢/kWh) and $9.98 in Hawaii (46.6¢/kWh).