Sub-Zero CL3650F/S/T/R
Not ENERGY STAR certified
Upright freezer · 20.6 cu ft
Inthis freezer costs
about $10 a month
$115 a year
An estimate at your state's average rate — not a guarantee of your bill.
The yellow sticker says $90 a year.
You'll pay $26 more.
Sticker uses 14¢ per kWh. The U.S. average is 18.0¢ per kWh.
Energy use
640 kWh a year
vs similar upright freezer
+40%
Cheaper freezers, same size
ENERGY STAR lists 4 other certified models at the same 640 kWh a year, size and type, so everything on this page applies to them too.
Cheaper to run, same size
- Frigidaire FFUE2024AUpright freezer · 20 cu ft$76
- Frigidaire GRDF1911AUpright freezer · 18.8 cu ft$83
- True Residential TR-36FRZ-R-SS-CUpright freezer · 19.1 cu ft$84
- True Residential TR-36FRZ-L-SS-CUpright freezer · 19.1 cu ft$84
A year at the U.S. average residential rate.
Cost in every state
640 kWh a year × each state's average residential rate (EIA 12-month average through July 2026).
| State | Rate | Per year | Per month |
|---|---|---|---|
| Hawaii | 43.7¢ | $280 | about $23 a month |
| California | 33.1¢ | $212 | about $18 a month |
| Massachusetts | 30.4¢ | $194 | about $16 a month |
| Rhode Island | 29.4¢ | $188 | about $16 a month |
| Maine | 29.3¢ | $187 | about $16 a month |
| New York | 28.4¢ | $182 | about $15 a month |
| Connecticut | 28.2¢ | $180 | about $15 a month |
| Alaska | 27.0¢ | $173 | about $14 a month |
| New Hampshire | 26.8¢ | $171 | about $14 a month |
| District of Columbia | 24.2¢ | $155 | about $13 a month |
Show all 52 statesShow fewer
| Vermont | 23.9¢ | $153 | about $13 a month |
|---|---|---|---|
| New Jersey | 23.6¢ | $151 | about $13 a month |
| Maryland | 22.3¢ | $143 | about $12 a month |
| Michigan | 21.0¢ | $134 | about $11 a month |
| Pennsylvania | 20.8¢ | $133 | about $11 a month |
| Illinois | 19.0¢ | $121 | about $10 a month |
| Wisconsin | 18.8¢ | $120 | about $10 a month |
| Ohio | 18.3¢ | $117 | about $10 a month |
| U.S. average | 18.0¢ | $115 | about $10 a month |
| Delaware | 18.0¢ | $115 | about $10 a month |
| Indiana | 17.1¢ | $109 | about $9 a month |
| Virginia | 16.6¢ | $106 | about $9 a month |
| Colorado | 16.6¢ | $106 | about $9 a month |
| Alabama | 16.5¢ | $106 | about $9 a month |
| Minnesota | 16.2¢ | $104 | about $9 a month |
| Texas | 16.0¢ | $102 | about $9 a month |
| South Carolina | 15.7¢ | $101 | about $8 a month |
| West Virginia | 15.7¢ | $100 | about $8 a month |
| Oregon | 15.6¢ | $100 | about $8 a month |
| Arizona | 15.5¢ | $99 | about $8 a month |
| Florida | 15.4¢ | $99 | about $8 a month |
| New Mexico | 15.2¢ | $98 | about $8 a month |
| Kansas | 15.1¢ | $97 | about $8 a month |
| Georgia | 15.1¢ | $96 | about $8 a month |
| Mississippi | 14.9¢ | $96 | about $8 a month |
| North Carolina | 14.9¢ | $95 | about $8 a month |
| South Dakota | 14.3¢ | $91 | about $8 a month |
| Washington | 14.2¢ | $91 | about $8 a month |
| Wyoming | 14.2¢ | $91 | about $8 a month |
| Iowa | 14.1¢ | $90 | about $8 a month |
| Kentucky | 14.0¢ | $90 | about $7 a month |
| Montana | 13.9¢ | $89 | about $7 a month |
| Missouri | 13.9¢ | $89 | about $7 a month |
| Tennessee | 13.7¢ | $87 | about $7 a month |
| Oklahoma | 13.6¢ | $87 | about $7 a month |
| Nevada | 13.6¢ | $87 | about $7 a month |
| Arkansas | 13.5¢ | $86 | about $7 a month |
| Utah | 13.3¢ | $85 | about $7 a month |
| Louisiana | 13.1¢ | $84 | about $7 a month |
| Nebraska | 12.9¢ | $83 | about $7 a month |
| Idaho | 12.7¢ | $81 | about $7 a month |
| North Dakota | 12.5¢ | $80 | about $7 a month |
What the Sub-Zero CL3650F/S/T/R costs where electricity is expensive
At Hawaii's average residential rate of 43.7¢ per kWh, the Sub-Zero CL3650F/S/T/R costs $280 a year — $190 more a year than the label says. The EnergyGuide label estimates $90 a year, because every label in the country is calculated at 14¢ per kWh. At the U.S. average of 18.0¢ per kWh this freezer costs $115 a year, and in North Dakota, the cheapest state, $80 a year.
| Where | Rate | Cost a year | vs the label |
|---|---|---|---|
| Hawaii | 43.7¢ per kWh | $280 | +$190 |
| California | 33.1¢ per kWh | $212 | +$122 |
| Massachusetts | 30.4¢ per kWh | $194 | +$105 |
| Rhode Island | 29.4¢ per kWh | $188 | +$98 |
| Maine | 29.3¢ per kWh | $187 | +$98 |
| North Dakota | 12.5¢ per kWh | $80 | −$9 |
Electricity prices: EIA 12-month average through July 2026, residential sector, average revenue per kWh. Label figure calculated at 14¢ per kWh, the rate the FTC requires on labels.
Full specs
At the U.S. average residential rate this one costs $115 a year — about 40% more expensive to run than the average upright freezer ($83 a year across 621 certified models).
Every model on this scale is ENERGY STAR certified. Range across 621 upright freezers, priced a year at the U.S. average residential rate.
- Brand
- Sub-Zero
- Model number
- CL3650F/S/T/R
- Type
- Upright freezer
- Capacity
- 20.6 cu ft
- Annual energy use
- 640 kWh a year
- ENERGY STAR Most Efficient
- No
- Product class
- (9I-BI.) Built-in upright freezers with automatic defrost with an automatic icemaker
- Adjusted volume (cu ft)
- 36.2
- EnergyGuide label
- https://haven.subzero.com/AssetLink/0xsbhxnl47016616l50ex4o4trffyi82.pdf
Where to buy
We do not sell appliances. These open a search on the retailer's own site.
Common questions
+How much does the Sub-Zero CL3650F/S/T/R cost to run per month?
about $10 a month at the U.S. average residential rate of 18.0¢ per kWh, or $115 a year. Your cost depends on your state's rate — see the table above.
+How many kWh does the Sub-Zero CL3650F/S/T/R use?
640 kWh a year, as the manufacturer filed it with the U.S. Department of Energy, in its compliance certification database.
+Is the Sub-Zero CL3650F/S/T/R energy efficient?
It is not ENERGY STAR certified — it is filed with the U.S. Department of Energy, which every model on sale must be. It uses about 40% more electricity than the average upright freezer (average: 457 kWh a year).
+How does the Sub-Zero CL3650F/S/T/R compare to the average freezer?
The average upright freezer in our database uses 457 kWh a year, costing $83 a year at the U.S. average residential rate. The Sub-Zero CL3650F/S/T/R uses 640 kWh a year, costing $115 a year.
How we calculate this
Annual energy use (640 kWh a year) is the figure the manufacturer filed for this model with the U.S. Department of Energy, in the compliance certification database. Running cost is that figure multiplied by a state's average residential electricity price from the U.S. Energy Information Administration (12-month average through July 2026, average revenue per kWh).
Sources: U.S. DOE compliance certification data, updated fortnightly · U.S. EIA electricity prices, 12-month average through July 2026.