Model
Samsung QN77S90HAE
Rank #142 means 141 of the 172 television models we track cost less to run each year; the 20th efficiency percentile means it uses less energy for its size than 20% of those models.
What does the Samsung QN77S90HAE cost to run per year?
At $54 a year to run, the Samsung QN77S90HAE is among the more expensive television models we track to run, ranking #142 of 172. Once capacity is factored in, its efficiency percentile of 20 is below the class median, worth weighing alongside the raw dollar figure. At 76.6 in, it is a large 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 Lg OLED77G6WU* at $53/yr runs a little cheaper and the Samsung QN77S90DAF at $55/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 QN77S90HAE's $54/yr adds up to roughly $378 in electricity alone, before purchase price or repairs.
By the numbers
The Samsung QN77S90HAE 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 $54/yr, here is what the Samsung QN77S90HAE 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 QN77S90HAE costs about $540. That is roughly $190 more than the class median, which would run closer to $350 over the same ten years.
How the Samsung QN77S90HAE compares
The television class we track runs from $3 to $117 a year. At $54/yr, it runs about $19 a year above the class median of $35, and it is about $51 a year more than the cheapest television to run at $3.
What drives its running cost
At 76.6 in, the Samsung QN77S90HAE is a large television for its class, which spans 13.23 to 114.4 in with a median of 55 in, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up.
- 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 Samsung QN77S90HAE cheap to run?
Not especially. At $54 a year it ranks #142 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 Samsung QN77S90HAE cost per month?
Roughly $4.53/mo, spreading the $54/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 293 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $54 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Samsung QN77S90HAE for its size?
20th 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 |
|---|---|---|
| 141 | Lg OLED77G6WU*76.7 in | $53 |
| 140 | Samsung QN77S90FAF76.8 in | $53 |
| 139 | Samsung QN77S85DAE76.6 in | $53 |
| 138 | Samsung QN65S95DAF64.5 in | $51 |
| 137 | Samsung QN65QN95DAF64.5 in | $51 |
Source
ES_1023593_QN77S90HAE_010220260052166_5978887View certified television listingsENERGY STAR data as of July 2026Samsung and QN77S90HAE 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.