Model
Lg OLED55C5***
Rank #111 means 110 of the 172 television models we track cost less to run each year; the 11th efficiency percentile means it uses less energy for its size than 11% of those models.
What does the Lg OLED55C5*** cost to run per year?
Do the math and the Lg OLED55C5***'s $42/yr puts it at rank #111 of 172, on the pricier side of the class. Adjusted for size, it is only more efficient than 11% of television models we track, so its headline cost is mostly a function of its capacity rather than efficiency. At 54.6 in, it is a mid-size television for the class, which runs 13.23 to 114.4 in; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Samsung QN55QN90DAF at $42/yr runs a little cheaper and the Lg OLED65G6WU* at $43/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 OLED55C5***'s $42/yr adds up to roughly $294 in electricity alone, before purchase price or repairs.
By the numbers
The Lg OLED55C5*** 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 $42/yr, here is what the Lg OLED55C5*** 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 OLED55C5*** costs about $420. That is roughly $70 more than the class median, which would run closer to $350 over the same ten years.
How the Lg OLED55C5*** compares
The television class we track runs from $3 to $117 a year. At $42/yr, it runs about $7 a year above the class median of $35, and it is about $39 a year more than the cheapest television to run at $3.
What drives its running cost
At 54.6 in, the Lg OLED55C5*** is a mid-size television for its class, which spans 13.23 to 114.4 in with a median of 55 in, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone.
- Screen size. A bigger panel needs more backlight or more emissive pixels to reach the same brightness, so energy use climbs with diagonal screen size across most panel technologies.
- On-mode brightness. The picture mode you leave a TV on, vivid or eco, moves its real-world wattage more than almost anything else you control directly.
- Hours of use. ENERGY STAR's on-mode wattage figure assumes a standard number of hours per day; a TV left on longer than that, or used as ambient background noise, accumulates more of that hourly cost.
Common questions
Is the Lg OLED55C5*** cheap to run?
Not especially. At $42 a year it ranks #111 of 172 television models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the Lg OLED55C5*** cost per month?
Roughly $3.53/mo, spreading the $42/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 228 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $42 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Lg OLED55C5*** for its size?
11th 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 |
|---|---|---|
| 110 | Samsung QN55QN90DAF54.6 in | $42 |
| 109 | Samsung QN65S90HAE64.5 in | $41 |
| 108 | Samsung QN65S84FAE64.5 in | $41 |
| 107 | Sansui LE-75VH574.3 in | $41 |
| 106 | Lg OLED55G5***54.6 in | $40 |
Source
ES_1118034_OLED55C5***_111520241005286_9270839View certified television listingsENERGY STAR data as of July 2026Lg and OLED55C5*** 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.