Cost to Run a Whole House Fan
A large fan that cools by pulling air through the house
Wattage
300W
Daily Usage
6h
Monthly Cost*
$9.30
Annual Cost*
$113.14
* At national average rate of 17.22¢/kWh
Cost to Run Whole House Fan by State
From cheapest (Idaho: $6.02/mo) to most expensive (Hawaii: $23.32/mo).
| # | State | Rate | Monthly | Annual |
|---|---|---|---|---|
| 1 | Idaho | 11.15¢ | $6.02 | $73.26 |
| 2 | Washington | 11.26¢ | $6.08 | $73.98 |
| 3 | Utah | 11.41¢ | $6.16 | $74.96 |
| 4 | Wyoming | 11.72¢ | $6.33 | $77.00 |
| 5 | North Dakota | 12.43¢ | $6.71 | $81.67 |
| 6 | Louisiana | 12.52¢ | $6.76 | $82.26 |
| 7 | Oregon | 12.55¢ | $6.78 | $82.45 |
| 8 | Montana | 12.81¢ | $6.92 | $84.16 |
| 9 | Oklahoma | 12.82¢ | $6.92 | $84.23 |
| 10 | Tennessee | 12.91¢ | $6.97 | $84.82 |
| 11 | Arkansas | 13.04¢ | $7.04 | $85.67 |
| 12 | Nebraska | 13.08¢ | $7.06 | $85.94 |
| 13 | Kentucky | 13.19¢ | $7.12 | $86.66 |
| 14 | West Virginia | 13.44¢ | $7.26 | $88.30 |
| 15 | Mississippi | 13.54¢ | $7.31 | $88.96 |
| 16 | South Dakota | 13.74¢ | $7.42 | $90.27 |
| 17 | Missouri | 13.78¢ | $7.44 | $90.53 |
| 18 | North Carolina | 14.09¢ | $7.61 | $92.57 |
| 19 | Georgia | 14.27¢ | $7.71 | $93.75 |
| 20 | South Carolina | 14.43¢ | $7.79 | $94.81 |
| 21 | Virginia | 14.64¢ | $7.91 | $96.18 |
| 22 | Arizona | 14.78¢ | $7.98 | $97.10 |
| 23 | Alabama | 14.87¢ | $8.03 | $97.70 |
| 24 | Nevada | 14.92¢ | $8.06 | $98.02 |
| 25 | Delaware | 14.94¢ | $8.07 | $98.16 |
| 26 | Texas | 15.06¢ | $8.13 | $98.94 |
| 27 | Iowa | 15.14¢ | $8.18 | $99.47 |
| 28 | Ohio | 15.21¢ | $8.21 | $99.93 |
| 29 | Kansas | 15.28¢ | $8.25 | $100.39 |
| 30 | New Mexico | 15.34¢ | $8.28 | $100.78 |
| 31 | Indiana | 15.42¢ | $8.33 | $101.31 |
| 32 | Colorado | 15.56¢ | $8.40 | $102.23 |
| 33 | Minnesota | 15.63¢ | $8.44 | $102.69 |
| 34 | Florida | 16.22¢ | $8.76 | $106.57 |
| 35 | Illinois | 16.27¢ | $8.79 | $106.89 |
| 36 | Maryland | 16.57¢ | $8.95 | $108.86 |
| 37 | Wisconsin | 17.38¢ | $9.39 | $114.19 |
| 38 | Pennsylvania | 18.36¢ | $9.91 | $120.63 |
| 39 | New Jersey | 18.48¢ | $9.98 | $121.41 |
| 40 | Michigan | 19.34¢ | $10.44 | $127.06 |
| 41 | Vermont | 21.43¢ | $11.57 | $140.80 |
| 42 | Alaska | 24.21¢ | $13.07 | $159.06 |
| 43 | New York | 24.33¢ | $13.14 | $159.85 |
| 44 | New Hampshire | 25.78¢ | $13.92 | $169.37 |
| 45 | Maine | 26.37¢ | $14.24 | $173.25 |
| 46 | Rhode Island | 28.08¢ | $15.16 | $184.49 |
| 47 | Massachusetts | 28.58¢ | $15.43 | $187.77 |
| 48 | Connecticut | 29.98¢ | $16.19 | $196.97 |
| 49 | California | 31.22¢ | $16.86 | $205.12 |
| 50 | Hawaii | 43.18¢ | $23.32 | $283.69 |
Energy Saving Tips for Whole House Fan
- Set your thermostat to 78F when home and higher when away to reduce cooling costs by 10-15%.
- Use ceiling fans to create a wind-chill effect, allowing you to raise the thermostat by 4F.
- Keep blinds and curtains closed during peak sun hours.
- Ensure proper insulation and seal air leaks around windows and doors.
- Schedule regular maintenance to keep your cooling system running efficiently.
- Consider upgrading to an Energy Star rated model for 15-20% energy savings.
Related Cooling Appliances
Frequently Asked Questions
How much electricity does a Whole House Fan use?
A typical Whole House Fan uses 300 watts and runs about 6 hours per day, consuming 1.80 kWh daily.
How much does it cost to run a Whole House Fan per month?
At the national average electricity rate of 17.22¢/kWh, running a Whole House Fan costs approximately $9.30 per month.
Where is it cheapest to run a Whole House Fan?
Idaho has the lowest cost at $6.02/month, while Hawaii is the most expensive at $23.32/month.
Was this data helpful?
Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)