Data through April 2026
Running cost · Room Air Conditioners · ENERGY STAR certified
Hykolity ACB-2621
The Hykolity ACB-2621 is certified at 400 kWh per year (based on 750 standardized hours), roughly $75 at the national average — though seasonal use means your real bill lands in a few months, not twelve. Compared with the median certified room air conditioner, it uses 25% less electricity — rank 70 out of 396. Where you live moves the bill from $49 a year in North Dakota to $186 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$75/yr
- Per month
- $6.28
- Per day
- 21¢
- Certified use
- 400 kWh/yr
- Cooling capacity
- 8,000 BTU/hr
- CEER
- 15
- Mounting
- Straddles Window
- Variable-speed compressor
- Yes
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $70 | |
| Alaska | 27.4¢ | $109 | |
| Arizona | 15.5¢ | $62 | |
| Arkansas | 14.2¢ | $57 | |
| California | 35.3¢ | $141 | |
| Colorado | 16.5¢ | $66 | |
| Connecticut | 32.2¢ | $129 | |
| Delaware | 18.8¢ | $75 | |
| District of Columbia | 25.4¢ | $102 | |
| Florida | 15.4¢ | $62 | |
| Georgia | 15.4¢ | $61 | |
| Hawaiipriciest | 46.6¢ | $186 | |
| Idaho | 12.7¢ | $51 | |
| Illinois | 20.5¢ | $82 | |
| Indiana | 17.9¢ | $72 | |
| Iowa | 13.9¢ | $55 | |
| Kansas | 15.8¢ | $63 | |
| Kentucky | 15.0¢ | $60 | |
| Louisiana | 14.4¢ | $58 | |
| Maine | 28.4¢ | $114 | |
| Maryland | 22.1¢ | $88 | |
| Massachusetts | 29.4¢ | $118 | |
| Michigan | 21.4¢ | $86 | |
| Minnesota | 16.4¢ | $66 | |
| Mississippi | 16.8¢ | $67 | |
| Missouri | 14.0¢ | $56 | |
| Montana | 13.9¢ | $56 | |
| Nebraska | 13.3¢ | $53 | |
| Nevada | 14.3¢ | $57 | |
| New Hampshire | 27.2¢ | $109 | |
| New Jersey | 23.5¢ | $94 | |
| New Mexico | 15.2¢ | $61 | |
| New York | 29.4¢ | $118 | |
| North Carolina | 16.3¢ | $65 | |
| North Dakotacheapest | 12.3¢ | $49 | |
| Ohio | 19.5¢ | $78 | |
| Oklahoma | 13.3¢ | $53 | |
| Oregon | 15.8¢ | $63 | |
| Pennsylvania | 21.5¢ | $86 | |
| Rhode Island | 28.3¢ | $113 | |
| South Carolina | 17.1¢ | $68 | |
| South Dakota | 14.5¢ | $58 | |
| Tennessee | 14.9¢ | $60 | |
| Texas | 17.0¢ | $68 | |
| Utah | 13.3¢ | $53 | |
| Vermont | 24.6¢ | $98 | |
| Virginia | 17.4¢ | $70 | |
| Washington | 14.4¢ | $57 | |
| West Virginia | 16.1¢ | $64 | |
| Wisconsin | 19.2¢ | $77 | |
| Wyoming | 14.7¢ | $59 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| BLACK+DECKER BD08NWES | 400 | $75 |
| Century RXTS-81A | 400 | $75 |
| Comfort Aire RXTS-81A | 400 | $75 |
| Danby DAC080B7IWDB-6 | 400 | $75 |
| Danby DAC080B8IWDB-6 | 400 | $75 |
| Danby DAC080EBIBDB | 400 | $75 |
Run your own numbers
Your rate, your numbers
- Per day
- 21¢
- Per month
- $6.28
- Per year
- $75
400 kWh/yr × 18.8¢/kWh = $75/yr
Prefilled with this model's certified 400 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.
Questions, answered with the data
- How much electricity does the Hykolity ACB-2621 use?
- ENERGY STAR certifies the Hykolity ACB-2621 at 400 kWh per year. The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.
- How much does the Hykolity ACB-2621 cost to run per month?
- About $6.28 a month at the U.S. average residential rate (18.8¢/kWh) — 21¢ a day, or $75 a year. Your state's rate moves this up or down; see the table above.
- Is the Hykolity ACB-2621 energy efficient?
- It uses 25% less electricity than the median certified room air conditioner, placing it in the efficient third of certified models.
- What does the Hykolity ACB-2621 cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $49 a year in North Dakota (12.3¢/kWh) and $186 in Hawaii (46.6¢/kWh).