Data through April 2026
Running cost · Refrigerators · ENERGY STAR certified
Zline RWDO-GS-24
The Zline RWDO-GS-24 never switches off, and its certified 129 kWh a year works out to about $24 on a U.S.-average electric bill — roughly $2.02 a month for an average continuous draw of 15 watts. Compared with the median certified compact-cooler refrigerator, it uses 10% less electricity — rank 27 out of 81. Where you live moves the bill from $16 a year in North Dakota to $60 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$24/yr
- Per month
- $2.02
- Per day
- 7¢
- Certified use
- 129 kWh/yr
- Configuration
- Compact Cooler
- Total capacity
- 4.8 cu ft
- Ice maker
- No
- Through-door dispenser
- No
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $22 | |
| Alaska | 27.4¢ | $35 | |
| Arizona | 15.5¢ | $20 | |
| Arkansas | 14.2¢ | $18 | |
| California | 35.3¢ | $45 | |
| Colorado | 16.5¢ | $21 | |
| Connecticut | 32.2¢ | $42 | |
| Delaware | 18.8¢ | $24 | |
| District of Columbia | 25.4¢ | $33 | |
| Florida | 15.4¢ | $20 | |
| Georgia | 15.4¢ | $20 | |
| Hawaiipriciest | 46.6¢ | $60 | |
| Idaho | 12.7¢ | $16 | |
| Illinois | 20.5¢ | $26 | |
| Indiana | 17.9¢ | $23 | |
| Iowa | 13.9¢ | $18 | |
| Kansas | 15.8¢ | $20 | |
| Kentucky | 15.0¢ | $19 | |
| Louisiana | 14.4¢ | $19 | |
| Maine | 28.4¢ | $37 | |
| Maryland | 22.1¢ | $28 | |
| Massachusetts | 29.4¢ | $38 | |
| Michigan | 21.4¢ | $28 | |
| Minnesota | 16.4¢ | $21 | |
| Mississippi | 16.8¢ | $22 | |
| Missouri | 14.0¢ | $18 | |
| Montana | 13.9¢ | $18 | |
| Nebraska | 13.3¢ | $17 | |
| Nevada | 14.3¢ | $18 | |
| New Hampshire | 27.2¢ | $35 | |
| New Jersey | 23.5¢ | $30 | |
| New Mexico | 15.2¢ | $20 | |
| New York | 29.4¢ | $38 | |
| North Carolina | 16.3¢ | $21 | |
| North Dakotacheapest | 12.3¢ | $16 | |
| Ohio | 19.5¢ | $25 | |
| Oklahoma | 13.3¢ | $17 | |
| Oregon | 15.8¢ | $20 | |
| Pennsylvania | 21.5¢ | $28 | |
| Rhode Island | 28.3¢ | $37 | |
| South Carolina | 17.1¢ | $22 | |
| South Dakota | 14.5¢ | $19 | |
| Tennessee | 14.9¢ | $19 | |
| Texas | 17.0¢ | $22 | |
| Utah | 13.3¢ | $17 | |
| Vermont | 24.6¢ | $32 | |
| Virginia | 17.4¢ | $22 | |
| Washington | 14.4¢ | $19 | |
| West Virginia | 16.1¢ | $21 | |
| Wisconsin | 19.2¢ | $25 | |
| Wyoming | 14.7¢ | $19 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| SAPPHIRE SW243SZSSPRADA | 127 | $24 |
| Comfee CERV113B0A | 135 | $25 |
| Midea MERV113B0A | 135 | $25 |
| SAPPHIRE SW243DZSSPR | 135 | $25 |
| Insignia NS-WC14SS3 | 121 | $23 |
| SMEG Spa CVIU138 | 120 | $23 |
Run your own numbers
Your rate, your numbers
- Per day
- 7¢
- Per month
- $2.02
- Per year
- $24
129 kWh/yr × 18.8¢/kWh = $24/yr
Prefilled with this model's certified 129 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 Zline RWDO-GS-24 use?
- ENERGY STAR certifies the Zline RWDO-GS-24 at 129 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 Zline RWDO-GS-24 cost to run per month?
- About $2.02 a month at the U.S. average residential rate (18.8¢/kWh) — 7¢ a day, or $24 a year. Your state's rate moves this up or down; see the table above.
- Is the Zline RWDO-GS-24 energy efficient?
- It uses 10% less electricity than the median certified compact-cooler refrigerator, placing it in the efficient third of certified models.
- What does the Zline RWDO-GS-24 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $16 a year in North Dakota (12.3¢/kWh) and $60 in Hawaii (46.6¢/kWh).
- How many watts does the Zline RWDO-GS-24 draw on average?
- Spread over a year of continuous operation, 129 kWh works out to an average draw of about 15 watts — like leaving a 15-watt bulb on 24/7.