Model
Lg 50QNED80AU*
Rank #25 means 24 of the 172 television models we track cost less to run each year; the 89th efficiency percentile means it uses less energy for its size than 89% of those models.
What does the Lg 50QNED80AU* cost to run per year?
Among the 172 television models we track, the Lg 50QNED80AU*'s $21/yr running cost ranks it #25, comfortably in the cheap-to-run group. Its size-adjusted efficiency percentile of 89 sits well above the class median, a clearly above-average efficiency result. 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 Lg 43QNED82AU* at $20/yr runs a little cheaper and the Philips 50HFL4518U/27 at $21/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 50QNED80AU*'s $21/yr adds up to roughly $147 in electricity alone, before purchase price or repairs.
Also sold as: Philips 50HFL4518U/27.
By the numbers
The Lg 50QNED80AU* 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 $21/yr, here is what the Lg 50QNED80AU* 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 50QNED80AU* costs about $210. That is roughly $140 less than the class median, which would run closer to $350 over the same ten years.
How the Lg 50QNED80AU* compares
The television class we track runs from $3 to $117 a year. At $21/yr, it runs about $14 a year cheaper than the class median of $35, and it is about $18 a year more than the cheapest television to run at $3.
What drives its running cost
At 49.5 in, the Lg 50QNED80AU* 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 50QNED80AU* cheap to run?
Yes. Its $21/yr running cost puts it at rank #25 of 172, below what most television models we track cost to run.
How much does the Lg 50QNED80AU* cost per month?
About $1.76 a month, which is the $21 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: 114 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $21 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg 50QNED80AU* for its size?
89th 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 |
|---|---|---|
| 24 | Lg 43QNED82AU*42.5 in | $20 |
| 23 | Philips 43BFL2214/2742.5 in | $19 |
| 22 | Sansui LE-40TA139.46 in | $19 |
| 21 | Philips 43HFL6214U/2742.5 in | $19 |
| 20 | Lg 43QNED80AU*42.5 in | $18 |
Source
ES_1118034_50QNED80AU*_112020241329630_8448156View certified television listingsENERGY STAR data as of July 2026Lg and 50QNED80AU* 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.