Data through April 2026
Running cost · Televisions · ENERGY STAR certified
LG OLED77C5
At the standardized usage ENERGY STAR assumes, the LG OLED77C5 consumes 344 kWh a year — about $65 at the U.S. average electricity rate ($5.40 a month). Even among certified models it's on the thirsty end: 83% more electricity than the median television, ranked 158 of 172. Where you live moves the bill from $42 a year in North Dakota to $160 in Hawaii. Note the certified pool here is small (172 models), so rankings shift more with each data refresh.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$65/yr
- Per month
- $5.40
- Per day
- 18¢
- Certified use
- 344 kWh/yr
- Screen size
- 76.7 in
- Display type
- OLED
- Backlight
- OLED
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $60 | |
| Alaska | 27.4¢ | $94 | |
| Arizona | 15.5¢ | $53 | |
| Arkansas | 14.2¢ | $49 | |
| California | 35.3¢ | $121 | |
| Colorado | 16.5¢ | $57 | |
| Connecticut | 32.2¢ | $111 | |
| Delaware | 18.8¢ | $65 | |
| District of Columbia | 25.4¢ | $87 | |
| Florida | 15.4¢ | $53 | |
| Georgia | 15.4¢ | $53 | |
| Hawaiipriciest | 46.6¢ | $160 | |
| Idaho | 12.7¢ | $44 | |
| Illinois | 20.5¢ | $70 | |
| Indiana | 17.9¢ | $62 | |
| Iowa | 13.9¢ | $48 | |
| Kansas | 15.8¢ | $54 | |
| Kentucky | 15.0¢ | $52 | |
| Louisiana | 14.4¢ | $50 | |
| Maine | 28.4¢ | $98 | |
| Maryland | 22.1¢ | $76 | |
| Massachusetts | 29.4¢ | $101 | |
| Michigan | 21.4¢ | $74 | |
| Minnesota | 16.4¢ | $56 | |
| Mississippi | 16.8¢ | $58 | |
| Missouri | 14.0¢ | $48 | |
| Montana | 13.9¢ | $48 | |
| Nebraska | 13.3¢ | $46 | |
| Nevada | 14.3¢ | $49 | |
| New Hampshire | 27.2¢ | $94 | |
| New Jersey | 23.5¢ | $81 | |
| New Mexico | 15.2¢ | $52 | |
| New York | 29.4¢ | $101 | |
| North Carolina | 16.3¢ | $56 | |
| North Dakotacheapest | 12.3¢ | $42 | |
| Ohio | 19.5¢ | $67 | |
| Oklahoma | 13.3¢ | $46 | |
| Oregon | 15.8¢ | $54 | |
| Pennsylvania | 21.5¢ | $74 | |
| Rhode Island | 28.3¢ | $97 | |
| South Carolina | 17.1¢ | $59 | |
| South Dakota | 14.5¢ | $50 | |
| Tennessee | 14.9¢ | $51 | |
| Texas | 17.0¢ | $58 | |
| Utah | 13.3¢ | $46 | |
| Vermont | 24.6¢ | $84 | |
| Virginia | 17.4¢ | $60 | |
| Washington | 14.4¢ | $49 | |
| West Virginia | 16.1¢ | $55 | |
| Wisconsin | 19.2¢ | $66 | |
| Wyoming | 14.7¢ | $50 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| LG OLED77B5 | 344 | $65 |
| Samsung QN85QN90FAF | 345 | $65 |
| SANSUI. LE-85TE1 | 347 | $65 |
| LG 86QNED90TU | 340 | $64 |
| LG OLED77G5 | 348 | $66 |
| Samsung QN98QN90FAF | 357 | $67 |
Run your own numbers
Your rate, your numbers
- Per day
- 18¢
- Per month
- $5.40
- Per year
- $65
344 kWh/yr × 18.8¢/kWh = $65/yr
Prefilled with this model's certified 344 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 LG OLED77C5 use?
- ENERGY STAR certifies the LG OLED77C5 at 344 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 LG OLED77C5 cost to run per month?
- About $5.40 a month at the U.S. average residential rate (18.8¢/kWh) — 18¢ a day, or $65 a year. Your state's rate moves this up or down; see the table above.
- Is the LG OLED77C5 energy efficient?
- It uses 83% more electricity than the median certified television, which puts it among the least efficient certified models.
- What does the LG OLED77C5 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $42 a year in North Dakota (12.3¢/kWh) and $160 in Hawaii (46.6¢/kWh).