WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Thermador T30IB905SP

Running around the clock, the Thermador T30IB905SP uses a certified 470 kWh per year — about $89 at the U.S. average rate, or $7.38 a month, the equivalent of a steady 54-watt draw. Compared with the median certified bottom-freezer refrigerator, it uses 16% less electricity — rank 393 out of 1458. The same unit costs $58 a year in North Dakota but $219 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 26% less energy than the U.S. federal minimum

Dimensions 83.7" H × 30" W

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

$89/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$7.38
Per day
24¢
Certified use
470 kWh/yr
Configuration
Bottom Freezer
Total capacity
16 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Thermador T30IB905SP (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Thermador T30IB905SP: 470 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$82
Alaska27.4¢$129
Arizona15.5¢$73
Arkansas14.2¢$67
California35.3¢$166
Colorado16.5¢$78
Connecticut32.2¢$152
Delaware18.8¢$88
District of Columbia25.4¢$119
Florida15.4¢$72
Georgia15.4¢$72
Hawaiipriciest46.6¢$219
Idaho12.7¢$60
Illinois20.5¢$96
Indiana17.9¢$84
Iowa13.9¢$65
Kansas15.8¢$74
Kentucky15.0¢$71
Louisiana14.4¢$68
Maine28.4¢$134
Maryland22.1¢$104
Massachusetts29.4¢$138
Michigan21.4¢$101
Minnesota16.4¢$77
Mississippi16.8¢$79
Missouri14.0¢$66
Montana13.9¢$65
Nebraska13.3¢$62
Nevada14.3¢$67
New Hampshire27.2¢$128
New Jersey23.5¢$111
New Mexico15.2¢$71
New York29.4¢$138
North Carolina16.3¢$76
North Dakotacheapest12.3¢$58
Ohio19.5¢$92
Oklahoma13.3¢$63
Oregon15.8¢$74
Pennsylvania21.5¢$101
Rhode Island28.3¢$133
South Carolina17.1¢$80
South Dakota14.5¢$68
Tennessee14.9¢$70
Texas17.0¢$80
Utah13.3¢$62
Vermont24.6¢$115
Virginia17.4¢$82
Washington14.4¢$67
West Virginia16.1¢$75
Wisconsin19.2¢$90
Wyoming14.7¢$69

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 470 kWh/yr
ModelkWh/yr$/yr (US avg)
Bosch B30IB905SP470$89
Gaggenau RB472705470$89
Miele KF 2802 Vi470$89
Ikea IX3HHGXSS469$88
Kenmore 6935469$88
Kenmore 6936469$88

Run your own numbers

Your rate, your numbers

Per day
24¢
Per month
$7.38
Per year
$89

470 kWh/yr × 18.8¢/kWh = $89/yr

Prefilled with this model's certified 470 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 Thermador T30IB905SP use?
ENERGY STAR certifies the Thermador T30IB905SP at 470 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 Thermador T30IB905SP cost to run per month?
About $7.38 a month at the U.S. average residential rate (18.8¢/kWh) — 24¢ a day, or $89 a year. Your state's rate moves this up or down; see the table above.
Is the Thermador T30IB905SP energy efficient?
It uses 16% less electricity than the median certified bottom-freezer refrigerator, placing it in the efficient third of certified models.
What does the Thermador T30IB905SP cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $58 a year in North Dakota (12.3¢/kWh) and $219 in Hawaii (46.6¢/kWh).
How many watts does the Thermador T30IB905SP draw on average?
Spread over a year of continuous operation, 470 kWh works out to an average draw of about 54 watts — like leaving a 54-watt bulb on 24/7.

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