Data through June 2026
Running cost · Televisions · ENERGY STAR certified
Samsung QN50QN90FAF
At the standardized usage ENERGY STAR assumes, the Samsung QN50QN90FAF consumes 144 kWh a year — about $26 at the U.S. average electricity rate ($2.20 a month). That's 23% less than the median certified television, placing it comfortably in the efficient third of the field (58 of 180). The same unit costs $19 a year in Nevada but $76 in Hawaii — electricity rates, not the appliance, make the difference. Note the certified pool here is small (180 models), so rankings shift more with each data refresh.
Estimated annual running cost · U.S. average rate 18.3¢/kWh
$26/yr
- Per month
- $2.20
- Per day
- 7¢
- Certified use
- 144 kWh/yr
- Screen size
- 49.5 in
- Display type
- QD-LED (QLED)
- Backlight
- Direct-lit LED
- On-mode power
- 75.76 W
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 16.4¢ | $24 | |
| Alaska | 28.2¢ | $41 | |
| Arizona | 15.2¢ | $22 | |
| Arkansas | 14.1¢ | $20 | |
| California | 34.7¢ | $50 | |
| Colorado | 17.1¢ | $25 | |
| Connecticut | 24.3¢ | $35 | |
| Delaware | 19.3¢ | $28 | |
| District of Columbia | 24.4¢ | $35 | |
| Florida | 15.1¢ | $22 | |
| Georgia | 16.4¢ | $24 | |
| Hawaiipriciest | 52.7¢ | $76 | |
| Idaho | 14.4¢ | $21 | |
| Illinois | 19.9¢ | $29 | |
| Indiana | 17.5¢ | $25 | |
| Iowa | 15.9¢ | $23 | |
| Kansas | 15.7¢ | $23 | |
| Kentucky | 14.3¢ | $21 | |
| Louisiana | 13.5¢ | $19 | |
| Maine | 29.6¢ | $43 | |
| Maryland | 21.8¢ | $31 | |
| Massachusetts | 29.6¢ | $43 | |
| Michigan | 23.0¢ | $33 | |
| Minnesota | 17.5¢ | $25 | |
| Mississippi | 14.9¢ | $21 | |
| Missouri | 16.2¢ | $23 | |
| Montana | 15.1¢ | $22 | |
| Nebraska | 13.3¢ | $19 | |
| Nevadacheapest | 13.1¢ | $19 | |
| New Hampshire | 27.0¢ | $39 | |
| New Jersey | 24.9¢ | $36 | |
| New Mexico | 15.1¢ | $22 | |
| New York | 29.5¢ | $42 | |
| North Carolina | 14.7¢ | $21 | |
| North Dakota | 14.1¢ | $20 | |
| Ohio | 19.2¢ | $28 | |
| Oklahoma | 14.3¢ | $21 | |
| Oregon | 16.3¢ | $23 | |
| Pennsylvania | 21.7¢ | $31 | |
| Rhode Island | 29.2¢ | $42 | |
| South Carolina | 15.6¢ | $22 | |
| South Dakota | 15.4¢ | $22 | |
| Tennessee | 14.1¢ | $20 | |
| Texas | 15.9¢ | $23 | |
| Utah | 13.4¢ | $19 | |
| Vermont | 24.4¢ | $35 | |
| Virginia | 17.2¢ | $25 | |
| Washington | 14.9¢ | $21 | |
| West Virginia | 15.4¢ | $22 | |
| Wisconsin | 19.6¢ | $28 | |
| Wyoming | 15.2¢ | $22 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Samsung QN48S90HAE | 144 | $26 |
| Samsung QN43QN90DAF | 144 | $26 |
| LG OLED42C5 | 145 | $27 |
| LG 55QNED85TU | 142 | $26 |
| LG 55QNED85AU | 147 | $27 |
| Sansui LE-55TA1 | 147 | $27 |
Run your own numbers
Your rate, your numbers
- Per day
- 7¢
- Per month
- $2.20
- Per year
- $26
144 kWh/yr × 18.3¢/kWh = $26/yr
Prefilled with this model's certified 144 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh is based on the standardized ENERGY STAR duty cycle of about 5 hours of on-time per day plus standby the rest of the time. Heavy streaming households will use more.
Questions, answered with the data
- How much electricity does the Samsung QN50QN90FAF use?
- ENERGY STAR certifies the Samsung QN50QN90FAF at 144 kWh per year. The certified annual kWh is based on the standardized ENERGY STAR duty cycle of about 5 hours of on-time per day plus standby the rest of the time. Heavy streaming households will use more.
- How much does the Samsung QN50QN90FAF cost to run per month?
- About $2.20 a month at the U.S. average residential rate (18.3¢/kWh) — 7¢ a day, or $26 a year. Your state's rate moves this up or down; see the table above.
- Is the Samsung QN50QN90FAF energy efficient?
- It uses 23% less electricity than the median certified television, placing it in the efficient third of certified models.
- What does the Samsung QN50QN90FAF cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $19 a year in Nevada (13.1¢/kWh) and $76 in Hawaii (52.7¢/kWh).