Ministry of Energy, Thailand announced “Ministerial Regulation Prescribing Type or Size of Building and Standard, Criteria and Procedure in Designing Building for Energy Conservation B.E. 2563 (2020)” in the Royal Gazette on 12 November 2020. The regulation, which repeals previous regulation established in 2009, mandates an energy-efficient design for building with a total area in all stories of 2,000 square meters or more.
Target buildings for mandatory energy conservation are;
- Entertainment service buildings
- Services facilities and related buildings for services
- Medical facilities and hospitals
- Educational institutions
- Office buildings
- Shopping malls and department stores
- Meeting halls
Existing buildings are exempted from the regulation.
Requirements for Target Buildings
New buildings and expansion of the existing buildings shall have an energy-efficient design in accordance with the regulation. The building design shall be audited by a qualified engineer. In case the building uses renewable energy, it will be taken into consideration for the calculation of the energy performance of the building. Energy performance standards of insulation, lighting, air conditioning, and hot water producing equipment will be prescribed by subsidiary notification.
The regulation will be effective 120 days after the announcement in the Royal gazette. A grace period of 2 years for building with a total area in all stories of less than 5,000 square meters and 1 year for building with a total area in all stories of less than 10,000 square meters is given.
Download the original text of the Ministerial Regulation at
On 24 December, 2021, Thailand published two notifications to implement the ministerial regulation. See more details about the notifications in the following:
Thailand sets out energy performance standards for buildings