Samsung QN115QN90FF running cost
$115.55/year
The Samsung QN115QN90FF is rated at 631 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $115.55 a year, or $9.63 a month.
How it compares
Among 39 certified extra-large (75"+) TVs (same size band), it ranks #39 for lowest running cost (class median $57.50/year). Screen size (inches, diagonal): 114.4.
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 | QD-LED (QLED) |
|---|---|
| Backlight | Direct-lit LED |
| Resolution | 4K (UHD) |
| On-mode power (W) | 343.5 |
| Standby, networked (W) | — |
| On market since | 2025-06-09 |
| Annual energy use | 631 kWh |
Source: ENERGY STAR certified TVs dataset, record 4430171. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $80.27 |
| Nevada | 12.8¢ | $80.59 |
| Utah | 13.1¢ | $82.79 |
| North Dakota | 13.4¢ | $84.62 |
| Tennessee | 13.7¢ | $86.52 |
| Idaho | 13.7¢ | $86.64 |
| Nebraska | 13.8¢ | $86.96 |
| Kentucky | 13.8¢ | $87.15 |
| Arkansas | 14.3¢ | $90.43 |
| Oklahoma | 14.3¢ | $90.56 |
| Wyoming | 14.4¢ | $90.62 |
| Mississippi | 14.5¢ | $91.75 |
| Washington | 14.7¢ | $92.83 |
| Montana | 15.0¢ | $94.59 |
| Florida | 15.0¢ | $94.85 |
| North Carolina | 15.2¢ | $95.67 |
| Kansas | 15.3¢ | $96.36 |
| South Dakota | 15.4¢ | $96.99 |
| Arizona | 15.4¢ | $97.06 |
| South Carolina | 15.5¢ | $97.62 |
| West Virginia | 15.8¢ | $99.58 |
| Texas | 15.9¢ | $100.21 |
| Oregon | 16.0¢ | $100.78 |
| Iowa | 16.0¢ | $100.90 |
| Missouri | 16.1¢ | $101.54 |
| New Mexico | 16.1¢ | $101.54 |
| Georgia | 16.3¢ | $102.67 |
| Alabama | 16.4¢ | $103.49 |
| Indiana | 16.7¢ | $105.57 |
| Colorado | 17.0¢ | $107.28 |
| Minnesota | 17.4¢ | $110.12 |
| Virginia | 17.6¢ | $110.75 |
| Delaware | 18.5¢ | $116.62 |
| Wisconsin | 19.1¢ | $120.28 |
| Illinois | 19.2¢ | $121.29 |
| Ohio | 19.4¢ | $122.74 |
| Maryland | 21.4¢ | $135.11 |
| Pennsylvania | 21.7¢ | $137.06 |
| Michigan | 23.1¢ | $145.46 |
| Vermont | 23.8¢ | $149.87 |
| Connecticut | 24.2¢ | $152.46 |
| New Jersey | 25.2¢ | $158.96 |
| District of Columbia | 25.2¢ | $159.09 |
| New Hampshire | 26.6¢ | $167.86 |
| Rhode Island | 28.3¢ | $178.52 |
| Alaska | 28.8¢ | $181.93 |
| New York | 29.9¢ | $188.68 |
| Massachusetts | 30.5¢ | $192.41 |
| Maine | 32.4¢ | $204.52 |
| California | 33.6¢ | $212.10 |
| Hawaii | 48.0¢ | $302.90 |