LG OLED77C5*** running cost
$62.99/year
The LG OLED77C5*** is rated at 344 kWh per year (ENERGY STAR test conditions). At the US average residential price of 18.3¢/kWh (July 2026), that is about $62.99 a year, or $5.25 a month.
How it compares
Among 39 certified extra-large (75"+) TVs (same size band), it ranks #24 for lowest running cost (class median $57.50/year). Screen size (inches, diagonal): 76.7.
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) | — |
| Standby, networked (W) | — |
| On market since | 2025-04-04 |
| Annual energy use | 344 kWh |
Source: ENERGY STAR certified TVs dataset, record 3798867. Real-world use depends on hours of operation, settings and climate.
Cost to run in every state
| State | Price | Per year |
|---|---|---|
| Louisiana | 12.7¢ | $43.76 |
| Nevada | 12.8¢ | $43.93 |
| Utah | 13.1¢ | $45.13 |
| North Dakota | 13.4¢ | $46.13 |
| Tennessee | 13.7¢ | $47.16 |
| Idaho | 13.7¢ | $47.23 |
| Nebraska | 13.8¢ | $47.40 |
| Kentucky | 13.8¢ | $47.51 |
| Arkansas | 14.3¢ | $49.30 |
| Oklahoma | 14.3¢ | $49.36 |
| Wyoming | 14.4¢ | $49.40 |
| Mississippi | 14.5¢ | $50.02 |
| Washington | 14.7¢ | $50.60 |
| Montana | 15.0¢ | $51.57 |
| Florida | 15.0¢ | $51.70 |
| North Carolina | 15.2¢ | $52.15 |
| Kansas | 15.3¢ | $52.53 |
| South Dakota | 15.4¢ | $52.87 |
| Arizona | 15.4¢ | $52.91 |
| South Carolina | 15.5¢ | $53.22 |
| West Virginia | 15.8¢ | $54.28 |
| Texas | 15.9¢ | $54.63 |
| Oregon | 16.0¢ | $54.94 |
| Iowa | 16.0¢ | $55.01 |
| Missouri | 16.1¢ | $55.35 |
| New Mexico | 16.1¢ | $55.35 |
| Georgia | 16.3¢ | $55.97 |
| Alabama | 16.4¢ | $56.42 |
| Indiana | 16.7¢ | $57.55 |
| Colorado | 17.0¢ | $58.48 |
| Minnesota | 17.4¢ | $60.03 |
| Virginia | 17.6¢ | $60.37 |
| Delaware | 18.5¢ | $63.57 |
| Wisconsin | 19.1¢ | $65.57 |
| Illinois | 19.2¢ | $66.12 |
| Ohio | 19.4¢ | $66.91 |
| Maryland | 21.4¢ | $73.65 |
| Pennsylvania | 21.7¢ | $74.72 |
| Michigan | 23.1¢ | $79.29 |
| Vermont | 23.8¢ | $81.70 |
| Connecticut | 24.2¢ | $83.11 |
| New Jersey | 25.2¢ | $86.65 |
| District of Columbia | 25.2¢ | $86.72 |
| New Hampshire | 26.6¢ | $91.50 |
| Rhode Island | 28.3¢ | $97.32 |
| Alaska | 28.8¢ | $99.18 |
| New York | 29.9¢ | $102.86 |
| Massachusetts | 30.5¢ | $104.89 |
| Maine | 32.4¢ | $111.49 |
| California | 33.6¢ | $115.62 |
| Hawaii | 48.0¢ | $165.12 |