Model
Samsung QN43QN90FAF
Rank #31 means 30 of the 172 television models we track cost less to run each year; the 66th efficiency percentile means it uses less energy for its size than 66% of those models.
What does the Samsung QN43QN90FAF cost to run per year?
Few television models we track cost less to run than the Samsung QN43QN90FAF: about $22 a year, rank #31 of 172. Adjusted for size, it is more efficient than 66% of television models we track, a solidly above-average result. At 62.8 W in on-mode, its power draw is a direct input into that running-cost figure.
Immediately around it on the leaderboard, the Lg 50QNED85AU* at $22/yr runs a little cheaper and the Philips 50HFL5214U/27 at $23/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 QN43QN90FAF's $22/yr adds up to roughly $154 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung QN43QN90FAF 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 $22/yr, here is what the Samsung QN43QN90FAF 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 QN43QN90FAF costs about $220. That is roughly $130 less than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN43QN90FAF compares
The television class we track runs from $3 to $117 a year. At $22/yr, it runs about $13 a year cheaper than the class median of $35, and it is about $19 a year more than the cheapest television to run at $3.
What drives its running cost
At 42.5 in, the Samsung QN43QN90FAF 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. 62.8 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. The picture mode you leave a TV on, vivid or eco, moves its real-world wattage more than almost anything else you control directly.
- 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.
- 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 Samsung QN43QN90FAF cheap to run?
Yes, relatively. At $22 a year it ranks #31 of 172 television models we track, in the cheaper part of its class to run.
How much does the Samsung QN43QN90FAF cost per month?
Roughly $1.84/mo, spreading the $22/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 119 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $22 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Samsung QN43QN90FAF for its size?
66th 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 |
|---|---|---|
| 30 | Lg 50QNED85AU*49.5 in | $22 |
| 29 | Lg 50QNED82AU*49.5 in | $22 |
| 28 | Sansui LE-43V142.45 in | $22 |
| 27 | Lg OLED42C6PU*41.5 in | $22 |
| 26 | Philips 50HFL4518U/2749.5 in | $21 |
Source
ES_1023593_QN43QN90FAF_012020250041560_1195068View certified television listingsENERGY STAR data as of July 2026Samsung and QN43QN90FAF 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.