WattCost

Data through April 2026

Running cost · Televisions · ENERGY STAR certified

Samsung QN42S90FAE

The Samsung QN42S90FAE's certified consumption is 138 kWh per year, which prices out to about $26 at the national average rate — your hours of use scale that directly. Compared with the median certified television, it uses 27% less electricity — rank 49 out of 172. Where you live moves the bill from $17 a year in North Dakota to $64 in Hawaii. Note the certified pool here is small (172 models), so rankings shift more with each data refresh.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$26/yr

$3.46 · cheapest certified televisions$119 · priciest
Per month
$2.16
Per day
Certified use
138 kWh/yr
Screen size
41.5 in
Display type
OLED
Backlight
OLED
On-mode power
71.93 W
18 kWh631 kWh
Where the Samsung QN42S90FAE (▮) sits among all 172 certified televisions, by annual kWh

What it costs in every state

Samsung QN42S90FAE: 138 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$24
Alaska27.4¢$38
Arizona15.5¢$21
Arkansas14.2¢$19
California35.3¢$48
Colorado16.5¢$23
Connecticut32.2¢$44
Delaware18.8¢$26
District of Columbia25.4¢$35
Florida15.4¢$21
Georgia15.4¢$21
Hawaiipriciest46.6¢$64
Idaho12.7¢$17
Illinois20.5¢$28
Indiana17.9¢$25
Iowa13.9¢$19
Kansas15.8¢$22
Kentucky15.0¢$21
Louisiana14.4¢$20
Maine28.4¢$39
Maryland22.1¢$30
Massachusetts29.4¢$40
Michigan21.4¢$29
Minnesota16.4¢$23
Mississippi16.8¢$23
Missouri14.0¢$19
Montana13.9¢$19
Nebraska13.3¢$18
Nevada14.3¢$20
New Hampshire27.2¢$37
New Jersey23.5¢$32
New Mexico15.2¢$21
New York29.4¢$40
North Carolina16.3¢$22
North Dakotacheapest12.3¢$17
Ohio19.5¢$27
Oklahoma13.3¢$18
Oregon15.8¢$22
Pennsylvania21.5¢$30
Rhode Island28.3¢$39
South Carolina17.1¢$23
South Dakota14.5¢$20
Tennessee14.9¢$21
Texas17.0¢$23
Utah13.3¢$18
Vermont24.6¢$34
Virginia17.4¢$24
Washington14.4¢$20
West Virginia16.1¢$22
Wisconsin19.2¢$26
Wyoming14.7¢$20

Certified models closest in efficiency

televisions within reach of 138 kWh/yr
ModelkWh/yr$/yr (US avg)
LG OLED48G5SU137$26
LG 50QNED85TU136$26
LG OLED42C4PU136$26
Sansui LE-50V1135$25
Sansui LE-55V4135$25
LG 55QNED82AU133$25

Run your own numbers

Your rate, your numbers

Per day
Per month
$2.17
Per year
$26

138 kWh/yr × 18.8¢/kWh = $26/yr

Prefilled with this model's certified 138 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh is based on the standardized ENERGY STAR duty cycle of about 5 hours of on-time per day plus standby the rest of the time. Heavy streaming households will use more.

Questions, answered with the data

How much electricity does the Samsung QN42S90FAE use?
ENERGY STAR certifies the Samsung QN42S90FAE at 138 kWh per year. The certified annual kWh is based on the standardized ENERGY STAR duty cycle of about 5 hours of on-time per day plus standby the rest of the time. Heavy streaming households will use more.
How much does the Samsung QN42S90FAE cost to run per month?
About $2.16 a month at the U.S. average residential rate (18.8¢/kWh) — 7¢ a day, or $26 a year. Your state's rate moves this up or down; see the table above.
Is the Samsung QN42S90FAE energy efficient?
It uses 27% less electricity than the median certified television, placing it in the efficient third of certified models.
What does the Samsung QN42S90FAE cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $17 a year in North Dakota (12.3¢/kWh) and $64 in Hawaii (46.6¢/kWh).

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