Currently, Thailand has no mandatory form of energy performance certification. However, Thailand has a ministerial regulation regarding the energy-saving standard and determination of the buildings that must comply with the standard, B.E. 2563 (2020), issued under the Energy Conservation Act, B.E. 2535 (1992). It requires certain types of large-scale buildings to comply with the energy-saving standard.

Ministerial regulation regarding the energy-saving standard and determination of the buildings that must comply with the standard, B.E. 2563 (2020)

The ministerial regulation requires that the construction of certain buildings with a total area of 2,000 square meters or more, and the modification of those buildings that results in a renovated area of 2,000 square meters or more, be done in accordance with the energy-saving standard set out in the regulation. The regulation covers the following buildings:

• Theaters under the building control laws
• Hotels under the hotel laws
• Entertainment places under entertainment place laws
• Medical facilities under medical facility laws
• Educational establishments under national education laws
• Offices
• Malls or department stores
• Condominiums under condominium laws
• Assembly buildings

The energy-saving standard for buildings set out in the ministerial regulation concerns the facade system, lighting control system, air-conditioning system, and water heater system.