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- New Energy Efficiency Standards Formulated for Home-use Air Conditioners
New Energy Efficiency Standards Formulated for Home-use Air Conditioners
May 31, 2022
1. Background
Under the Act on the Rational Use of Energy, METI is promoting efforts toward energy efficiency regarding equipment for which it is particularly necessary to improve consumption efficiency. Its approaches include setting energy efficiency standards that relevant manufacturers, etc. are required to ensure that their products satisfy by the target fiscal year.
Heating and cooling accounts for a large percentage of household energy consumption (approx. 30%). In light of this fact, a working group(*1) discussed reviewing the energy efficiency standards for home-use air conditioners and compiled a report(*2) in February 2022 indicating a new target fiscal year, energy efficiency standards, and other matters. In light of this report, on May 31, METI promulgated a Public Notice that stipulates new energy efficiency standards and other rules with FY 2027 or FY2029 as the target years.
2. Public Notice promulgated
Public Notice to Partially Amend the Judgment Standards for Manufacturers, etc. of Energy-Consuming Equipment Concerning the Enhancement of the Energy Consumption Efficiency for Air Conditioners
3. Outline of the new energy efficiency standards
Target equipment
Home-use air conditioners, including those that are non-ducted and wall-hung type, those that are not (cassette-type, through-the-wall, standing, etc.), and those that are multi-type
Target fiscal year
(1) FY2027 (non-ducted wall-hung types)
(2) FY2029 (other non-ducted wall-hung type, multi-types)
Category
10 categories are set based on unit form, cooling capacity, and specifications (non-cold regions/cold regions)
Energy efficiency standard
The next energy efficiency standards for home-use air conditioners are as follows.(*3) The next energy efficiency standards are expected to have an improvement of up to a maximum of 34.7% (4.0 kW for non-ducted and wall-hung type) compared to current energy efficiency standards.
| Unit form | Cooling capacity | Current energy efficiency standard (APF) |
Next energy efficiency standard (APF) |
Improvement rate (*4) (%) |
|---|---|---|---|---|
| Non-ducted wall-hung type | 2.2 kW | 5.8 | 6.6 | 13.8% |
| 2.5 kW | 5.8 | 6.6 | 13.8% | |
| 2.8 kW | 5.8 | 6.6 | 13.8% | |
| 3.2 kW | 5.8 | 6.6 | 13.8% | |
| 4.0 kW | 4.9 | 6.6 | 34.7% | |
| 4.5 kW | 5.5 | 6.5 | 18.2% | |
| 5.0 kW | 5.5 | 6.4 | 16.4% | |
| 5.6 kW | 5.0 | 6.3 | 26.0% | |
| 6.3 kW | 5.0 | 6.1 | 22.0% | |
| 7.1 kW | 4.5 | 5.9 | 31.1% | |
| 8.0 kW | 4.5 | 5.7 | 26.7% | |
| 9.0 kW | 4.5 | 5.5 | 22.2% | |
| 10.0 kW | 4.5 | 5.3 | 17.8% |
4. Promulgation and enforcement
Promulgated on:
May 31, 2022
Enforced on:
June 1, 2022