Samsung QN77S90FAF running cost
$52.46/year
The Samsung QN77S90FAF is rated at 286 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $52.46 a year, or $4.37 a month.
How it compares
Among 39 certified extra-large (75"+) TVs (same size band), it ranks #9 for lowest running cost (class median $57.50/year). Screen size (inches, diagonal): 76.8.
Cheaper-to-run TVs in the same size band
- LG 86QNED80AU* — 234 kWh/yr, $42.85/yr
- LG OLED77C6HU* — 250 kWh/yr, $45.77/yr
- LG 86QNED82AU* — 262 kWh/yr, $47.97/yr
- LG OLED77B4PU* — 263 kWh/yr, $48.16/yr
- LG 86QNED85AU* — 264 kWh/yr, $48.34/yr
Specifications
| Display type | OLED |
|---|---|
| Backlight | OLED |
| Resolution | 4K (UHD) |
| On-mode power (W) | 154.71 |
| Standby, networked (W) | — |
| On market since | 2025-02-10 |
| Annual energy use | 286 kWh |
Source: ENERGY STAR certified TVs dataset, record 3994232. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $36.44 |
| Nevada | 12.8¢ | $36.59 |
| Utah | 13.1¢ | $37.59 |
| North Dakota | 13.4¢ | $38.42 |
| Tennessee | 13.7¢ | $39.28 |
| Idaho | 13.7¢ | $39.34 |
| Nebraska | 13.8¢ | $39.48 |
| Kentucky | 13.8¢ | $39.57 |
| Arkansas | 14.3¢ | $41.06 |
| Oklahoma | 14.3¢ | $41.11 |
| Wyoming | 14.4¢ | $41.14 |
| Mississippi | 14.5¢ | $41.66 |
| Washington | 14.7¢ | $42.14 |
| Montana | 15.0¢ | $42.95 |
| Florida | 15.0¢ | $43.06 |
| North Carolina | 15.2¢ | $43.43 |
| Kansas | 15.3¢ | $43.75 |
| South Dakota | 15.4¢ | $44.04 |
| Arizona | 15.4¢ | $44.06 |
| South Carolina | 15.5¢ | $44.32 |
| West Virginia | 15.8¢ | $45.21 |
| Texas | 15.9¢ | $45.50 |
| Oregon | 16.0¢ | $45.75 |
| Iowa | 16.0¢ | $45.81 |
| Missouri | 16.1¢ | $46.10 |
| New Mexico | 16.1¢ | $46.10 |
| Georgia | 16.3¢ | $46.61 |
| Alabama | 16.4¢ | $46.99 |
| Indiana | 16.7¢ | $47.93 |
| Colorado | 17.0¢ | $48.70 |
| Minnesota | 17.4¢ | $49.99 |
| Virginia | 17.6¢ | $50.28 |
| Delaware | 18.5¢ | $52.95 |
| Wisconsin | 19.1¢ | $54.61 |
| Illinois | 19.2¢ | $55.07 |
| Ohio | 19.4¢ | $55.72 |
| Maryland | 21.4¢ | $61.34 |
| Pennsylvania | 21.7¢ | $62.23 |
| Michigan | 23.1¢ | $66.04 |
| Vermont | 23.8¢ | $68.04 |
| Connecticut | 24.2¢ | $69.22 |
| New Jersey | 25.2¢ | $72.17 |
| District of Columbia | 25.2¢ | $72.23 |
| New Hampshire | 26.6¢ | $76.21 |
| Rhode Island | 28.3¢ | $81.05 |
| Alaska | 28.8¢ | $82.60 |
| New York | 29.9¢ | $85.66 |
| Massachusetts | 30.5¢ | $87.35 |
| Maine | 32.4¢ | $92.85 |
| California | 33.6¢ | $96.29 |
| Hawaii | 48.0¢ | $137.52 |