Model
Samsung QN55S90FAF
Rank #83 means 82 of the 172 television models we track cost less to run each year; the 43rd efficiency percentile means it uses less energy for its size than 43% of those models.
What does the Samsung QN55S90FAF cost to run per year?
The Samsung QN55S90FAF costs about $35 a year to run, a fairly typical figure for the class; it ranks #83 of 172. Capacity-normalized, it ranks ahead of 43% of television models we track, right in the class's middle band. Its on-mode draw of 98.73 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 Samsung QN75QN90CAF at $34/yr runs a little cheaper and the Philips 75HFL6214U/27 at $35/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 Samsung QN55S90FAF's $35/yr adds up to roughly $245 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung QN55S90FAF 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 $35/yr, here is what the Samsung QN55S90FAF adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Samsung QN55S90FAF costs about $350. That is roughly $0 less than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN55S90FAF compares
The television class we track runs from $3 to $117 a year. At $35/yr, it sits right on the class median of $35, and it is about $32 a year more than the cheapest television to run at $3.
What drives its running cost
At 54.6 in, the Samsung QN55S90FAF 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. At 98.73 W on-mode (the class spans 9.3 to 343.5 W), its power draw is what ENERGY STAR actually measured to produce this running-cost figure; brightness settings move that wattage more than screen size alone.
- 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 Samsung QN55S90FAF cheap to run?
Roughly, yes. Its $35/yr figure is close to the class median, ranking #83 of 172, neither a bargain nor a splurge on running cost.
How much does the Samsung QN55S90FAF cost per month?
About $2.88 a month, which is the $35 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: 186 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $35 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Samsung QN55S90FAF for its size?
43rd percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 82 | Samsung QN75QN90CAF74.5 in | $34 |
| 81 | Samsung QN55S90DAF54.6 in | $34 |
| 80 | Samsung QN55S84FAF54.6 in | $34 |
| 79 | Samsung QN55S85FAF54.6 in | $33 |
| 78 | Lg OLED55B4PU*54.6 in | $33 |
Source
ES_1023593_QN55S90FAF_013120250758713_6981381View certified television listingsENERGY STAR data as of July 2026Samsung and QN55S90FAF 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.