WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Bosch B36CD51SN

The Bosch B36CD51SN never switches off, and its certified 656 kWh a year works out to about $124 on a U.S.-average electric bill — roughly $10.29 a month for an average continuous draw of 75 watts. It sits near the bottom of the certified table — using 17% more than the median bottom-freezer refrigerator (rank 1128 of 1458) — so the state you live in matters more than usual. Where you live moves the bill from $81 a year in North Dakota to $306 in Hawaii.

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

Dimensions 70" H × 36" W

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

$124/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$10.29
Per day
34¢
Certified use
656 kWh/yr
Configuration
Bottom Freezer
Total capacity
21.6 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
Yes
42 kWh805 kWh
Where the Bosch B36CD51SN (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Bosch B36CD51SN: 656 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$114
Alaska27.4¢$179
Arizona15.5¢$102
Arkansas14.2¢$93
California35.3¢$231
Colorado16.5¢$109
Connecticut32.2¢$211
Delaware18.8¢$123
District of Columbia25.4¢$167
Florida15.4¢$101
Georgia15.4¢$101
Hawaiipriciest46.6¢$306
Idaho12.7¢$83
Illinois20.5¢$134
Indiana17.9¢$117
Iowa13.9¢$91
Kansas15.8¢$104
Kentucky15.0¢$99
Louisiana14.4¢$95
Maine28.4¢$186
Maryland22.1¢$145
Massachusetts29.4¢$193
Michigan21.4¢$140
Minnesota16.4¢$108
Mississippi16.8¢$110
Missouri14.0¢$92
Montana13.9¢$91
Nebraska13.3¢$87
Nevada14.3¢$94
New Hampshire27.2¢$179
New Jersey23.5¢$154
New Mexico15.2¢$99
New York29.4¢$193
North Carolina16.3¢$107
North Dakotacheapest12.3¢$81
Ohio19.5¢$128
Oklahoma13.3¢$87
Oregon15.8¢$104
Pennsylvania21.5¢$141
Rhode Island28.3¢$186
South Carolina17.1¢$112
South Dakota14.5¢$95
Tennessee14.9¢$98
Texas17.0¢$111
Utah13.3¢$87
Vermont24.6¢$161
Virginia17.4¢$114
Washington14.4¢$94
West Virginia16.1¢$105
Wisconsin19.2¢$126
Wyoming14.7¢$96

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 656 kWh/yr
ModelkWh/yr$/yr (US avg)
Bosch B36CD50SN656$124
Samsung RF27CG5010656$124
Samsung RF27CG5100656$124
Samsung RF90F29BE656$124
Bertazzoni REF36FDFZXNT658$124
Bosch B36CD10EN654$123

Run your own numbers

Your rate, your numbers

Per day
34¢
Per month
$10.29
Per year
$124

656 kWh/yr × 18.8¢/kWh = $124/yr

Prefilled with this model's certified 656 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 B36CD51SN use?
ENERGY STAR certifies the Bosch B36CD51SN at 656 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 B36CD51SN cost to run per month?
About $10.29 a month at the U.S. average residential rate (18.8¢/kWh) — 34¢ a day, or $124 a year. Your state's rate moves this up or down; see the table above.
Is the Bosch B36CD51SN energy efficient?
It uses 17% more electricity than the median certified bottom-freezer refrigerator, which puts it among the least efficient certified models.
What does the Bosch B36CD51SN cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $81 a year in North Dakota (12.3¢/kWh) and $306 in Hawaii (46.6¢/kWh).
How many watts does the Bosch B36CD51SN draw on average?
Spread over a year of continuous operation, 656 kWh works out to an average draw of about 75 watts — like leaving a 75-watt bulb on 24/7.

Keep digging