Model
Lg OLED77G6WU*
Rank #141 means 140 of the 172 television models we track cost less to run each year; the 23rd efficiency percentile means it uses less energy for its size than 23% of those models.
What does the Lg OLED77G6WU* cost to run per year?
The Lg OLED77G6WU* costs about $53 a year to run, well up the cost table for its class at rank #141 of 172. Its size-adjusted efficiency percentile of 23 suggests its capacity is doing more work than its efficiency to keep the headline cost down. This class has no published efficiency-factor figure beyond annual kWh itself, so at 76.7 in (the class spans 13.23 to 114.4), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Samsung QN77S90FAF at $53/yr runs a little cheaper and the Samsung QN77S90HAE at $54/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A television typically stays in service for somewhere around 7 years; over that span, the Lg OLED77G6WU*'s $53/yr adds up to roughly $371 in electricity alone, before purchase price or repairs.
By the numbers
The Lg OLED77G6WU* normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $53/yr, here is what the Lg OLED77G6WU* adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Lg OLED77G6WU* costs about $530. That is roughly $180 more than the class median, which would run closer to $350 over the same ten years.
How the Lg OLED77G6WU* compares
The television class we track runs from $3 to $117 a year. At $53/yr, it runs about $18 a year above the class median of $35, and it is about $50 a year more than the cheapest television to run at $3.
What drives its running cost
At 76.7 in, the Lg OLED77G6WU* is a large television for its class, which spans 13.23 to 114.4 in with a median of 55 in, among television models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal.
- Screen size. Screen size is the single strongest predictor of a TV's on-mode wattage, ahead of panel technology or brand.
- On-mode brightness. On-mode watts, the figure ENERGY STAR measures at the factory picture setting, can differ a lot from what a TV actually draws once you change the picture mode.
- Hours of use. Running cost compounds with hours of use, so this figure is really a per-hour rate multiplied by a standard viewing assumption, not a fixed annual bill.
Common questions
Is the Lg OLED77G6WU* cheap to run?
Its $53/yr running cost, rank #141 of 172, is above what most television models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Lg OLED77G6WU* cost per month?
About $4.45 a month, which is the $53 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 288 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $53 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg OLED77G6WU* for its size?
23rd percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 140 | Samsung QN77S90FAF76.8 in | $53 |
| 139 | Samsung QN77S85DAE76.6 in | $53 |
| 138 | Samsung QN65S95DAF64.5 in | $51 |
| 137 | Samsung QN65QN95DAF64.5 in | $51 |
| 136 | Lg OLED65C5***64.5 in | $51 |
Source
ES_1118034_OLED77G6WU*_120420250422720_9200016View certified television listingsENERGY STAR data as of July 2026Lg and OLED77G6WU* are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.