Data through June 2026
Running cost · Computer Monitors · ENERGY STAR certified
PHILIPS 243B9
At the standardized usage ENERGY STAR assumes, the PHILIPS 243B9 consumes 47 kWh a year — about $8.68 at the U.S. average electricity rate ($0.72 a month). Efficiency-wise it's unremarkable in a good way: within 5% of the median certified computer monitor (rank 862 of 1530). Where you live moves the bill from $6.21 a year in Nevada to $25 in Hawaii.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$8.68/yr
- Per month
- $0.72
- Per day
- 2¢
- Certified use
- 47 kWh/yr
- Screen size
- 23.8 in
- Panel
- IPS LCD
- On-mode power
- 14.99 W
- Sleep-mode power
- 0.24 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $7.76 | |
| Alaska | 28.2¢ | $13 | |
| Arizona | 15.2¢ | $7.19 | |
| Arkansas | 14.1¢ | $6.68 | |
| California | 34.7¢ | $16 | |
| Colorado | 17.1¢ | $8.11 | |
| Connecticut | 24.3¢ | $12 | |
| Delaware | 19.3¢ | $9.13 | |
| District of Columbia | 24.4¢ | $12 | |
| Florida | 15.1¢ | $7.15 | |
| Georgia | 16.4¢ | $7.74 | |
| Hawaiipriciest | 52.7¢ | $25 | |
| Idaho | 14.4¢ | $6.80 | |
| Illinois | 19.9¢ | $9.42 | |
| Indiana | 17.5¢ | $8.29 | |
| Iowa | 15.9¢ | $7.54 | |
| Kansas | 15.7¢ | $7.44 | |
| Kentucky | 14.3¢ | $6.75 | |
| Louisiana | 13.5¢ | $6.39 | |
| Maine | 29.6¢ | $14 | |
| Maryland | 21.8¢ | $10 | |
| Massachusetts | 29.6¢ | $14 | |
| Michigan | 23.0¢ | $11 | |
| Minnesota | 17.5¢ | $8.29 | |
| Mississippi | 14.9¢ | $7.04 | |
| Missouri | 16.2¢ | $7.68 | |
| Montana | 15.1¢ | $7.17 | |
| Nebraska | 13.3¢ | $6.27 | |
| Nevadacheapest | 13.1¢ | $6.21 | |
| New Hampshire | 27.0¢ | $13 | |
| New Jersey | 24.9¢ | $12 | |
| New Mexico | 15.1¢ | $7.13 | |
| New York | 29.5¢ | $14 | |
| North Carolina | 14.7¢ | $6.98 | |
| North Dakota | 14.1¢ | $6.68 | |
| Ohio | 19.2¢ | $9.08 | |
| Oklahoma | 14.3¢ | $6.78 | |
| Oregon | 16.3¢ | $7.73 | |
| Pennsylvania | 21.7¢ | $10 | |
| Rhode Island | 29.2¢ | $14 | |
| South Carolina | 15.6¢ | $7.36 | |
| South Dakota | 15.4¢ | $7.27 | |
| Tennessee | 14.1¢ | $6.66 | |
| Texas | 15.9¢ | $7.55 | |
| Utah | 13.4¢ | $6.33 | |
| Vermont | 24.4¢ | $12 | |
| Virginia | 17.2¢ | $8.15 | |
| Washington | 14.9¢ | $7.06 | |
| West Virginia | 15.4¢ | $7.31 | |
| Wisconsin | 19.6¢ | $9.26 | |
| Wyoming | 15.2¢ | $7.21 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| PHILIPS 24E1N1100A | 47 | $8.68 |
| ViewSonic VS18086 | 47 | $8.68 |
| Samsung S24A40*### (*=0-9, #=A-Z, blank) | 47 | $8.69 |
| ASUS VA27E | 47 | $8.67 |
| Acer B277 | 47 | $8.70 |
| MSI 3PC3 | 47 | $8.66 |
Run your own numbers
Your rate, your numbers
- Per day
- 2¢
- Per month
- $0.72
- Per year
- $8.62
47 kWh/yr × 18.3¢/kWh = $8.62/yr
Prefilled with this model's certified 47 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 PHILIPS 243B9 use?
- ENERGY STAR certifies the PHILIPS 243B9 at 47 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 PHILIPS 243B9 cost to run per month?
- About $0.72 a month at the U.S. average residential rate (18.3¢/kWh) — 2¢ a day, or $8.68 a year. Your state's rate moves this up or down; see the table above.
- Is the PHILIPS 243B9 energy efficient?
- It uses 5% more electricity than the median certified computer monitor.
- What does the PHILIPS 243B9 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $6.21 a year in Nevada (13.1¢/kWh) and $25 in Hawaii (52.7¢/kWh).