WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Bosch B20CS30SNS

The Bosch B20CS30SNS never switches off, and its certified 593 kWh a year works out to about $112 on a U.S.-average electric bill — roughly $9.31 a month for an average continuous draw of 68 watts. That's 8% less than the median certified side-by-side refrigerator, placing it comfortably in the efficient third of the field (28 of 116). The same unit costs $73 a year in North Dakota but $276 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 10% less energy than the U.S. federal minimum

Dimensions 69.7" H × 35.9" W

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

$112/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$9.31
Per day
31¢
Certified use
593 kWh/yr
Configuration
Side-by-Side
Total capacity
20.2 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
Yes
42 kWh805 kWh
Where the Bosch B20CS30SNS (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Bosch B20CS30SNS: 593 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$103
Alaska27.4¢$162
Arizona15.5¢$92
Arkansas14.2¢$84
California35.3¢$209
Colorado16.5¢$98
Connecticut32.2¢$191
Delaware18.8¢$111
District of Columbia25.4¢$151
Florida15.4¢$91
Georgia15.4¢$91
Hawaiipriciest46.6¢$276
Idaho12.7¢$75
Illinois20.5¢$121
Indiana17.9¢$106
Iowa13.9¢$82
Kansas15.8¢$94
Kentucky15.0¢$89
Louisiana14.4¢$86
Maine28.4¢$169
Maryland22.1¢$131
Massachusetts29.4¢$175
Michigan21.4¢$127
Minnesota16.4¢$97
Mississippi16.8¢$99
Missouri14.0¢$83
Montana13.9¢$82
Nebraska13.3¢$79
Nevada14.3¢$85
New Hampshire27.2¢$162
New Jersey23.5¢$140
New Mexico15.2¢$90
New York29.4¢$175
North Carolina16.3¢$96
North Dakotacheapest12.3¢$73
Ohio19.5¢$116
Oklahoma13.3¢$79
Oregon15.8¢$94
Pennsylvania21.5¢$127
Rhode Island28.3¢$168
South Carolina17.1¢$101
South Dakota14.5¢$86
Tennessee14.9¢$89
Texas17.0¢$101
Utah13.3¢$79
Vermont24.6¢$146
Virginia17.4¢$103
Washington14.4¢$85
West Virginia16.1¢$95
Wisconsin19.2¢$114
Wyoming14.7¢$87

Certified models closest in efficiency

side-by-side refrigerators within reach of 593 kWh/yr
ModelkWh/yr$/yr (US avg)
Beko BFSB3612XSS594$112
KitchenAid KRSC336R600$113
KitchenAid KRSC536R600$113
Samsung RS23CB7600600$113
Whirlpool WRS331FDD*0601$113
Whirlpool WRS331SDH*0602$113

Run your own numbers

Your rate, your numbers

Per day
31¢
Per month
$9.31
Per year
$112

593 kWh/yr × 18.8¢/kWh = $112/yr

Prefilled with this model's certified 593 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 Bosch B20CS30SNS use?
ENERGY STAR certifies the Bosch B20CS30SNS at 593 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 Bosch B20CS30SNS cost to run per month?
About $9.31 a month at the U.S. average residential rate (18.8¢/kWh) — 31¢ a day, or $112 a year. Your state's rate moves this up or down; see the table above.
Is the Bosch B20CS30SNS energy efficient?
It uses 8% less electricity than the median certified side-by-side refrigerator, placing it in the efficient third of certified models.
What does the Bosch B20CS30SNS cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $73 a year in North Dakota (12.3¢/kWh) and $276 in Hawaii (46.6¢/kWh).
How many watts does the Bosch B20CS30SNS draw on average?
Spread over a year of continuous operation, 593 kWh works out to an average draw of about 68 watts — like leaving a 68-watt bulb on 24/7.

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