Model
Lg OLED48B5***
Rank #75 means 74 of the 172 television models we track cost less to run each year; the 26th efficiency percentile means it uses less energy for its size than 26% of those models.
What does the Lg OLED48B5*** cost to run per year?
Among the 172 television models we track, the Lg OLED48B5***'s $33/yr running cost ranks it #75, close to dead center. Efficiency-wise, once size is accounted for, it trails most of the class, ahead of only 26% of the models we track. Its on-mode draw of 85.1 W is the number ENERGY STAR measures directly and the one this running-cost figure is built from.
Immediately around it on the leaderboard, the Lg 65QNED80AU* at $33/yr runs a little cheaper and the Samsung QN55S85HAE at $33/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 OLED48B5***'s $33/yr adds up to roughly $231 in electricity alone, before purchase price or repairs.
By the numbers
The Lg OLED48B5*** 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 $33/yr, here is what the Lg OLED48B5*** 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 OLED48B5*** costs about $330. That is roughly $20 less than the class median, which would run closer to $350 over the same ten years.
How the Lg OLED48B5*** compares
The television class we track runs from $3 to $117 a year. At $33/yr, it runs about $2 a year cheaper than the class median of $35, and it is about $30 a year more than the cheapest television to run at $3.
What drives its running cost
At 47.5 in, the Lg OLED48B5*** is a small television for its class, which spans 13.23 to 114.4 in with a median of 55 in, and smaller television models generally cost less to run for the same job, all else being equal. 85.1 W is the on-mode draw behind this figure (the class spans 9.3 to 343.5 W); two otherwise similar TVs can differ here mostly on picture-mode defaults rather than panel technology.
- 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.
- Screen size. Screen size is the single strongest predictor of a TV's on-mode wattage, ahead of panel technology or brand.
- 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 OLED48B5*** cheap to run?
Roughly, yes. Its $33/yr figure is close to the class median, ranking #75 of 172, neither a bargain nor a splurge on running cost.
How much does the Lg OLED48B5*** cost per month?
About $2.72 a month, which is the $33 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: 176 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $33 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg OLED48B5*** for its size?
26th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 74 | Lg 65QNED80AU*64.5 in | $33 |
| 73 | Lg 75QNED80AU*74.5 in | $32 |
| 72 | Lg 65QNED85AU*64.5 in | $32 |
| 71 | Lg 65QNED82AU*64.5 in | $32 |
| 70 | Samsung QN50QN90DAF49.5 in | $31 |
Source
ES_1118034_OLED48B5***_010920250348169_7601684View certified television listingsENERGY STAR data as of July 2026Lg and OLED48B5*** 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.