WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

LG LS23C4000

The LG LS23C4000 never switches off, and its certified 518 kWh a year works out to about $95 on a U.S.-average electric bill — roughly $7.92 a month for an average continuous draw of 59 watts. Compared with the median certified side-by-side refrigerator, it uses 19% less electricity — rank 15 out of 119. The same unit costs $68 a year in Nevada but $273 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 6% less energy than the U.S. federal minimum

Dimensions 70.5" H × 36" W

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

$95/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$7.92
Per day
26¢
Certified use
518 kWh/yr
Configuration
Side-by-Side
Total capacity
23.1 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the LG LS23C4000 (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

LG LS23C4000: 518 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$85
Alaska28.2¢$146
Arizona15.2¢$79
Arkansas14.1¢$73
California34.7¢$180
Colorado17.1¢$89
Connecticut24.3¢$126
Delaware19.3¢$100
District of Columbia24.4¢$126
Florida15.1¢$78
Georgia16.4¢$85
Hawaiipriciest52.7¢$273
Idaho14.4¢$74
Illinois19.9¢$103
Indiana17.5¢$91
Iowa15.9¢$83
Kansas15.7¢$81
Kentucky14.3¢$74
Louisiana13.5¢$70
Maine29.6¢$153
Maryland21.8¢$113
Massachusetts29.6¢$153
Michigan23.0¢$119
Minnesota17.5¢$91
Mississippi14.9¢$77
Missouri16.2¢$84
Montana15.1¢$78
Nebraska13.3¢$69
Nevadacheapest13.1¢$68
New Hampshire27.0¢$140
New Jersey24.9¢$129
New Mexico15.1¢$78
New York29.5¢$153
North Carolina14.7¢$76
North Dakota14.1¢$73
Ohio19.2¢$99
Oklahoma14.3¢$74
Oregon16.3¢$85
Pennsylvania21.7¢$113
Rhode Island29.2¢$151
South Carolina15.6¢$81
South Dakota15.4¢$80
Tennessee14.1¢$73
Texas15.9¢$83
Utah13.4¢$69
Vermont24.4¢$127
Virginia17.2¢$89
Washington14.9¢$77
West Virginia15.4¢$80
Wisconsin19.6¢$101
Wyoming15.2¢$79

Certified models closest in efficiency

side-by-side refrigerators within reach of 518 kWh/yr
ModelkWh/yr$/yr (US avg)
Frigidaire FRSN2610A524$96
LG LS23NCP20495$91
Samsung RS27T5202most efficient546$100
Forno FFRBI1844-36560$103
Forno FFRBI1844-36BLK560$103
Forno FFRBI1844-36WHT560$103

Run your own numbers

Your rate, your numbers

Per day
26¢
Per month
$7.92
Per year
$95

518 kWh/yr × 18.3¢/kWh = $95/yr

Prefilled with this model's certified 518 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.

Questions, answered with the data

How much electricity does the LG LS23C4000 use?
ENERGY STAR certifies the LG LS23C4000 at 518 kWh per year. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.
How much does the LG LS23C4000 cost to run per month?
About $7.92 a month at the U.S. average residential rate (18.3¢/kWh) — 26¢ a day, or $95 a year. Your state's rate moves this up or down; see the table above.
Is the LG LS23C4000 energy efficient?
It uses 19% less electricity than the median certified side-by-side refrigerator, placing it in the efficient third of certified models.
What does the LG LS23C4000 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $68 a year in Nevada (13.1¢/kWh) and $273 in Hawaii (52.7¢/kWh).
How many watts does the LG LS23C4000 draw on average?
Spread over a year of continuous operation, 518 kWh works out to an average draw of about 59 watts — like leaving a 59-watt bulb on 24/7.

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