Data through April 2026
Running cost · Room Air Conditioners · ENERGY STAR certified
TCL H12W4KWH-CA
The TCL H12W4KWH-CA is certified at 592 kWh per year (based on 750 standardized hours), roughly $111 at the national average — though seasonal use means your real bill lands in a few months, not twelve. Efficiency-wise it's unremarkable in a good way: within 11% of the median certified room air conditioner (rank 222 of 396). Where you live moves the bill from $73 a year in North Dakota to $276 in Hawaii.
Estimated annual running cost · U.S. average rate 18.8¢/kWh
$111/yr
- Per month
- $9.29
- Per day
- 31¢
- Certified use
- 592 kWh/yr
- Cooling capacity
- 12,000 BTU/hr
- CEER
- 15.2
- Mounting
- Straddles Window
- Variable-speed compressor
- Yes
What it costs in every state
| State | Rate ¢/kWh | This model $/yr | Relative cost |
|---|---|---|---|
| Alabama | 17.4¢ | $103 | |
| Alaska | 27.4¢ | $162 | |
| Arizona | 15.5¢ | $92 | |
| Arkansas | 14.2¢ | $84 | |
| California | 35.3¢ | $209 | |
| Colorado | 16.5¢ | $98 | |
| Connecticut | 32.2¢ | $191 | |
| Delaware | 18.8¢ | $111 | |
| District of Columbia | 25.4¢ | $150 | |
| Florida | 15.4¢ | $91 | |
| Georgia | 15.4¢ | $91 | |
| Hawaiipriciest | 46.6¢ | $276 | |
| Idaho | 12.7¢ | $75 | |
| Illinois | 20.5¢ | $121 | |
| Indiana | 17.9¢ | $106 | |
| Iowa | 13.9¢ | $82 | |
| Kansas | 15.8¢ | $93 | |
| Kentucky | 15.0¢ | $89 | |
| Louisiana | 14.4¢ | $85 | |
| Maine | 28.4¢ | $168 | |
| Maryland | 22.1¢ | $131 | |
| Massachusetts | 29.4¢ | $174 | |
| Michigan | 21.4¢ | $127 | |
| Minnesota | 16.4¢ | $97 | |
| Mississippi | 16.8¢ | $99 | |
| Missouri | 14.0¢ | $83 | |
| Montana | 13.9¢ | $82 | |
| Nebraska | 13.3¢ | $79 | |
| Nevada | 14.3¢ | $85 | |
| New Hampshire | 27.2¢ | $161 | |
| New Jersey | 23.5¢ | $139 | |
| New Mexico | 15.2¢ | $90 | |
| New York | 29.4¢ | $174 | |
| North Carolina | 16.3¢ | $96 | |
| North Dakotacheapest | 12.3¢ | $73 | |
| Ohio | 19.5¢ | $115 | |
| Oklahoma | 13.3¢ | $79 | |
| Oregon | 15.8¢ | $93 | |
| Pennsylvania | 21.5¢ | $127 | |
| Rhode Island | 28.3¢ | $168 | |
| South Carolina | 17.1¢ | $101 | |
| South Dakota | 14.5¢ | $86 | |
| Tennessee | 14.9¢ | $88 | |
| Texas | 17.0¢ | $101 | |
| Utah | 13.3¢ | $79 | |
| Vermont | 24.6¢ | $145 | |
| Virginia | 17.4¢ | $103 | |
| Washington | 14.4¢ | $85 | |
| West Virginia | 16.1¢ | $95 | |
| Wisconsin | 19.2¢ | $114 | |
| Wyoming | 14.7¢ | $87 |
Certified models closest in efficiency
| Model | kWh/yr | $/yr (US avg) |
|---|---|---|
| Midea 1010451379 | 592 | $111 |
| Midea 1014278205 | 592 | $111 |
| Midea MAW12U1QWT | 592 | $111 |
| Midea MAW12U2QWT | 592 | $111 |
| Midea MWAUQB-12CRFN8-BCN12 | 592 | $111 |
| TCL H12W4KWH | 592 | $111 |
Run your own numbers
Your rate, your numbers
- Per day
- 31¢
- Per month
- $9.29
- Per year
- $111
592 kWh/yr × 18.8¢/kWh = $111/yr
Prefilled with this model's certified 592 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 TCL H12W4KWH-CA use?
- ENERGY STAR certifies the TCL H12W4KWH-CA at 592 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 TCL H12W4KWH-CA cost to run per month?
- About $9.29 a month at the U.S. average residential rate (18.8¢/kWh) — 31¢ a day, or $111 a year. Your state's rate moves this up or down; see the table above.
- Is the TCL H12W4KWH-CA energy efficient?
- It uses 11% more electricity than the median certified room air conditioner.
- What does the TCL H12W4KWH-CA cost to run in the cheapest vs. priciest state?
- At current residential rates it costs about $73 a year in North Dakota (12.3¢/kWh) and $276 in Hawaii (46.6¢/kWh).