Model
Lg OLED65G5***
Rank #123 means 122 of the 172 television models we track cost less to run each year; the 19th efficiency percentile means it uses less energy for its size than 19% of those models.
What does the Lg OLED65G5*** cost to run per year?
At roughly $47 a year to run, ranking #123 of 172, the Lg OLED65G5*** costs more than the typical television model we track. Efficiency-wise, once size is accounted for, it lags most of the class, ahead of only 19% of the models we track. This class has no published efficiency-factor figure beyond annual kWh itself, so at 64.5 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 OLED77C6HU* at $46/yr runs a little cheaper and the Samsung QN65S90DAF at $47/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 OLED65G5***'s $47/yr adds up to roughly $329 in electricity alone, before purchase price or repairs.
Also sold as: Samsung QN65S90DAF.
By the numbers
The Lg OLED65G5*** 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 $47/yr, here is what the Lg OLED65G5*** 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 OLED65G5*** costs about $470. That is roughly $120 more than the class median, which would run closer to $350 over the same ten years.
How the Lg OLED65G5*** compares
The television class we track runs from $3 to $117 a year. At $47/yr, it runs about $12 a year above the class median of $35, and it is about $44 a year more than the cheapest television to run at $3.
What drives its running cost
At 64.5 in, the Lg OLED65G5*** is a mid-size television for its class, which spans 13.23 to 114.4 in with a median of 55 in, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class.
- 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 OLED65G5*** cheap to run?
Its $47/yr running cost, rank #123 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 OLED65G5*** cost per month?
About $3.88 a month, which is the $47 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: 251 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $47 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg OLED65G5*** for its size?
19th 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 |
|---|---|---|
| 122 | Lg OLED77C6HU*76.7 in | $46 |
| 121 | Samsung QN65S90FAF64.5 in | $46 |
| 120 | Samsung QN55S95DAF54.6 in | $46 |
| 119 | Lg OLED65C4PU*64.5 in | $45 |
| 118 | Samsung QN65S95FAF64.5 in | $44 |
Source
ES_1118034_OLED65G5***_112120242314378_5447251View certified television listingsENERGY STAR data as of July 2026Lg and OLED65G5*** 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.