WattCost

Data through June 2026

Running cost · Freezers · ENERGY STAR certified

Thermador T18ID905LP

The Thermador T18ID905LP never switches off, and its certified 428 kWh a year works out to about $78 on a U.S.-average electric bill — roughly $6.54 a month for an average continuous draw of 49 watts. Efficiency-wise it's unremarkable in a good way: within 2% of the median certified upright freezer (rank 168 of 451). Where you live moves the bill from $56 a year in Nevada to $226 in Hawaii.

Uses 13% less energy than the U.S. federal minimum

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

$78/yr

$25 · cheapest certified freezers$119 · priciest
Per month
$6.54
Per day
22¢
Certified use
428 kWh/yr
Configuration
Upright Freezer
Total capacity
7.8 cu ft
Defrost
Automatic
Compact
No
137 kWh649 kWh
Where the Thermador T18ID905LP (▮) sits among all 594 certified freezers, by annual kWh

What it costs in every state

Thermador T18ID905LP: 428 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$70
Alaska28.2¢$121
Arizona15.2¢$65
Arkansas14.1¢$60
California34.7¢$149
Colorado17.1¢$73
Connecticut24.3¢$104
Delaware19.3¢$83
District of Columbia24.4¢$104
Florida15.1¢$65
Georgia16.4¢$70
Hawaiipriciest52.7¢$226
Idaho14.4¢$62
Illinois19.9¢$85
Indiana17.5¢$75
Iowa15.9¢$68
Kansas15.7¢$67
Kentucky14.3¢$61
Louisiana13.5¢$58
Maine29.6¢$127
Maryland21.8¢$93
Massachusetts29.6¢$127
Michigan23.0¢$98
Minnesota17.5¢$75
Mississippi14.9¢$64
Missouri16.2¢$69
Montana15.1¢$65
Nebraska13.3¢$57
Nevadacheapest13.1¢$56
New Hampshire27.0¢$116
New Jersey24.9¢$107
New Mexico15.1¢$64
New York29.5¢$126
North Carolina14.7¢$63
North Dakota14.1¢$60
Ohio19.2¢$82
Oklahoma14.3¢$61
Oregon16.3¢$70
Pennsylvania21.7¢$93
Rhode Island29.2¢$125
South Carolina15.6¢$67
South Dakota15.4¢$66
Tennessee14.1¢$60
Texas15.9¢$68
Utah13.4¢$57
Vermont24.4¢$105
Virginia17.2¢$74
Washington14.9¢$64
West Virginia15.4¢$66
Wisconsin19.6¢$84
Wyoming15.2¢$65

Certified models closest in efficiency

upright freezers within reach of 428 kWh/yr
ModelkWh/yr$/yr (US avg)
Miele F 2461 Vi428$78
Miele F 2471 SF428$78
Miele F 2471 Vi428$78
Miele F 2472 Vi428$78
Thermador T18ID900LP428$78
Thermador T18ID900RP428$78

Run your own numbers

Your rate, your numbers

Per day
22¢
Per month
$6.54
Per year
$78

428 kWh/yr × 18.3¢/kWh = $78/yr

Prefilled with this model's certified 428 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.

Questions, answered with the data

How much electricity does the Thermador T18ID905LP use?
ENERGY STAR certifies the Thermador T18ID905LP at 428 kWh per year. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures.
How much does the Thermador T18ID905LP cost to run per month?
About $6.54 a month at the U.S. average residential rate (18.3¢/kWh) — 22¢ a day, or $78 a year. Your state's rate moves this up or down; see the table above.
Is the Thermador T18ID905LP energy efficient?
It uses 2% less electricity than the median certified upright freezer.
What does the Thermador T18ID905LP cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $56 a year in Nevada (13.1¢/kWh) and $226 in Hawaii (52.7¢/kWh).
How many watts does the Thermador T18ID905LP draw on average?
Spread over a year of continuous operation, 428 kWh works out to an average draw of about 49 watts — like leaving a 49-watt bulb on 24/7.

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