Data through April 2026
Running cost · Dehumidifiers · ENERGY STAR certified
Keystone KSTAD504G
The Keystone KSTAD504G is certified at 525 kWh per year, roughly $99 at the national average — though seasonal use means your real bill lands in a few months, not twelve. It sits near the bottom of the certified table — using 53% more than the median dehumidifier (rank 414 of 481) — so the state you live in matters more than usual. The same unit costs $65 a year in North Dakota but $245 in Hawaii — electricity rates, not the appliance, make the difference.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$99/yr
- Per month
- $8.24
- Per day
- 27¢
- Certified use
- 525 kWh/yr
- Type
- Portable Dehumidifier
- Capacity
- 49.74 pints/day
- Efficiency (IEF)
- 2.01 L/kWh
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $91 | |
| Alaska | 27.4¢ | $144 | |
| Arizona | 15.5¢ | $81 | |
| Arkansas | 14.2¢ | $74 | |
| California | 35.3¢ | $185 | |
| Colorado | 16.5¢ | $87 | |
| Connecticut | 32.2¢ | $169 | |
| Delaware | 18.8¢ | $99 | |
| District of Columbia | 25.4¢ | $133 | |
| Florida | 15.4¢ | $81 | |
| Georgia | 15.4¢ | $81 | |
| Hawaiipriciest | 46.6¢ | $245 | |
| Idaho | 12.7¢ | $67 | |
| Illinois | 20.5¢ | $107 | |
| Indiana | 17.9¢ | $94 | |
| Iowa | 13.9¢ | $73 | |
| Kansas | 15.8¢ | $83 | |
| Kentucky | 15.0¢ | $79 | |
| Louisiana | 14.4¢ | $76 | |
| Maine | 28.4¢ | $149 | |
| Maryland | 22.1¢ | $116 | |
| Massachusetts | 29.4¢ | $155 | |
| Michigan | 21.4¢ | $112 | |
| Minnesota | 16.4¢ | $86 | |
| Mississippi | 16.8¢ | $88 | |
| Missouri | 14.0¢ | $74 | |
| Montana | 13.9¢ | $73 | |
| Nebraska | 13.3¢ | $70 | |
| Nevada | 14.3¢ | $75 | |
| New Hampshire | 27.2¢ | $143 | |
| New Jersey | 23.5¢ | $124 | |
| New Mexico | 15.2¢ | $80 | |
| New York | 29.4¢ | $155 | |
| North Carolina | 16.3¢ | $85 | |
| North Dakotacheapest | 12.3¢ | $65 | |
| Ohio | 19.5¢ | $102 | |
| Oklahoma | 13.3¢ | $70 | |
| Oregon | 15.8¢ | $83 | |
| Pennsylvania | 21.5¢ | $113 | |
| Rhode Island | 28.3¢ | $149 | |
| South Carolina | 17.1¢ | $90 | |
| South Dakota | 14.5¢ | $76 | |
| Tennessee | 14.9¢ | $78 | |
| Texas | 17.0¢ | $89 | |
| Utah | 13.3¢ | $70 | |
| Vermont | 24.6¢ | $129 | |
| Virginia | 17.4¢ | $91 | |
| Washington | 14.4¢ | $75 | |
| West Virginia | 16.1¢ | $84 | |
| Wisconsin | 19.2¢ | $101 | |
| Wyoming | 14.7¢ | $77 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Amazon Basics B0GR2TN8YX | 525 | $99 |
| Amazon Basics B0GR2TS1X4 | 525 | $99 |
| Brothers 301090 | 525 | $99 |
| Danby DDR050BL3BDB | 525 | $99 |
| DuraComfort DH50PWB | 525 | $99 |
| DuraComfort DH50PWM | 525 | $99 |
Run your own numbers
Your rate, your numbers
- Per day
- 27¢
- Per month
- $8.24
- Per year
- $99
525 kWh/yr × 18.8¢/kWh = $99/yr
Prefilled with this model's certified 525 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE test basis for standardized annual runtime. Damp basements that run a unit year-round will exceed it; seasonal use will come in under.
Questions, answered with the data
- How much electricity does the Keystone KSTAD504G use?
- ENERGY STAR certifies the Keystone KSTAD504G at 525 kWh per year. The certified annual kWh comes from the DOE test basis for standardized annual runtime. Damp basements that run a unit year-round will exceed it; seasonal use will come in under.
- How much does the Keystone KSTAD504G cost to run per month?
- About $8.24 a month at the U.S. average residential rate (18.8¢/kWh) — 27¢ a day, or $99 a year. Your state's rate moves this up or down; see the table above.
- Is the Keystone KSTAD504G energy efficient?
- It uses 53% more electricity than the median certified dehumidifier, which puts it among the least efficient certified models.
- What does the Keystone KSTAD504G cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $65 a year in North Dakota (12.3¢/kWh) and $245 in Hawaii (46.6¢/kWh).