WattCost

Data through June 2026

Running cost · Televisions · ENERGY STAR certified

LG OLED77B5

At the standardized usage ENERGY STAR assumes, the LG OLED77B5 consumes 344 kWh a year — about $63 at the U.S. average electricity rate ($5.26 a month). Even among certified models it's on the thirsty end: 85% more electricity than the median television, ranked 165 of 180. Where you live moves the bill from $45 a year in Nevada to $181 in Hawaii. Note the certified pool here is small (180 models), so rankings shift more with each data refresh.

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$63/yr

$3.37 · cheapest certified televisions$116 · priciest
Per month
$5.26
Per day
17¢
Certified use
344 kWh/yr
Screen size
76.7 in
Display type
OLED
Backlight
OLED
On-mode power
176.4 W
18 kWh631 kWh
Where the LG OLED77B5 (▮) sits among all 180 certified televisions, by annual kWh

What it costs in every state

LG OLED77B5: 344 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$56
Alaska28.2¢$97
Arizona15.2¢$52
Arkansas14.1¢$49
California34.7¢$120
Colorado17.1¢$59
Connecticut24.3¢$84
Delaware19.3¢$66
District of Columbia24.4¢$84
Florida15.1¢$52
Georgia16.4¢$56
Hawaiipriciest52.7¢$181
Idaho14.4¢$49
Illinois19.9¢$68
Indiana17.5¢$60
Iowa15.9¢$55
Kansas15.7¢$54
Kentucky14.3¢$49
Louisiana13.5¢$46
Maine29.6¢$102
Maryland21.8¢$75
Massachusetts29.6¢$102
Michigan23.0¢$79
Minnesota17.5¢$60
Mississippi14.9¢$51
Missouri16.2¢$56
Montana15.1¢$52
Nebraska13.3¢$46
Nevadacheapest13.1¢$45
New Hampshire27.0¢$93
New Jersey24.9¢$86
New Mexico15.1¢$52
New York29.5¢$101
North Carolina14.7¢$51
North Dakota14.1¢$49
Ohio19.2¢$66
Oklahoma14.3¢$49
Oregon16.3¢$56
Pennsylvania21.7¢$75
Rhode Island29.2¢$101
South Carolina15.6¢$53
South Dakota15.4¢$53
Tennessee14.1¢$48
Texas15.9¢$55
Utah13.4¢$46
Vermont24.4¢$84
Virginia17.2¢$59
Washington14.9¢$51
West Virginia15.4¢$53
Wisconsin19.6¢$67
Wyoming15.2¢$52

Certified models closest in efficiency

televisions within reach of 344 kWh/yr
ModelkWh/yr$/yr (US avg)
LG OLED77C5344$63
Samsung QN85QN90FAF345$63
SANSUI. LE-85TE1347$64
LG 86QNED90TU340$62
LG OLED77G5348$64
Samsung QN98QN90FAF357$66

Run your own numbers

Your rate, your numbers

Per day
17¢
Per month
$5.26
Per year
$63

344 kWh/yr × 18.3¢/kWh = $63/yr

Prefilled with this model's certified 344 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 LG OLED77B5 use?
ENERGY STAR certifies the LG OLED77B5 at 344 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 LG OLED77B5 cost to run per month?
About $5.26 a month at the U.S. average residential rate (18.3¢/kWh) — 17¢ a day, or $63 a year. Your state's rate moves this up or down; see the table above.
Is the LG OLED77B5 energy efficient?
It uses 85% more electricity than the median certified television, which puts it among the least efficient certified models.
What does the LG OLED77B5 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $45 a year in Nevada (13.1¢/kWh) and $181 in Hawaii (52.7¢/kWh).

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