Model
Lg 50QNED82AU*
Rank #29 means 28 of the 172 television models we track cost less to run each year; the 85th efficiency percentile means it uses less energy for its size than 85% of those models.
What does the Lg 50QNED82AU* cost to run per year?
Rank #29 of 172 puts the Lg 50QNED82AU* among the cheapest television models we track to keep running, at roughly $22 a year. Few television models we track beat it on size-adjusted efficiency; it edges out 85% of the class once capacity is normalized. This class has no published efficiency-factor figure beyond annual kWh itself, so at 49.5 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 Sansui LE-43V1 at $22/yr runs a little cheaper and the Lg 50QNED85AU* at $22/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 50QNED82AU*'s $22/yr adds up to roughly $154 in electricity alone, before purchase price or repairs.
Also sold as: Lg 50QNED85AU*.
By the numbers
The Lg 50QNED82AU* 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 $22/yr, here is what the Lg 50QNED82AU* 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 50QNED82AU* costs about $220. That is roughly $130 less than the class median, which would run closer to $350 over the same ten years.
How the Lg 50QNED82AU* compares
The television class we track runs from $3 to $117 a year. At $22/yr, it runs about $13 a year cheaper than the class median of $35, and it is about $19 a year more than the cheapest television to run at $3.
What drives its running cost
At 49.5 in, the Lg 50QNED82AU* is a small television for its class, which spans 13.23 to 114.4 in with a median of 55 in, at the small end of the class, capacity itself is doing a lot of the work to keep that figure down, separate from how efficient the unit actually is.
- 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 50QNED82AU* cheap to run?
Yes. Its $22/yr running cost puts it at rank #29 of 172, below what most television models we track cost to run.
How much does the Lg 50QNED82AU* cost per month?
About $1.84 a month, which is the $22 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: 119 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $22 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg 50QNED82AU* for its size?
85th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 28 | Sansui LE-43V142.45 in | $22 |
| 27 | Lg OLED42C6PU*41.5 in | $22 |
| 26 | Philips 50HFL4518U/2749.5 in | $21 |
| 25 | Lg 50QNED80AU*49.5 in | $21 |
| 24 | Lg 43QNED82AU*42.5 in | $20 |
Source
ES_1118034_50QNED82AU*_120220240145699_2108475View certified television listingsENERGY STAR data as of July 2026Lg and 50QNED82AU* 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.