Ministerial Regulation prescribing type or size of building and standard, rule and procedure for designing of energy conservation building B.E. 2552 (2009)

Ministerial Regulation Prescribing Type or Size of Building and Standard, Rule and Procedure for Designing of Energy Conservation Building, B.E. 2552 (2009) Translation By virtue of Section 6 paragraph two and Section 19 of the Promotion of Energy Conservation Act, B.E. 2535 (1992) as amended by the Promotion of Energy Conservation Act (No. 2), B.E. 2550 (2007) which contains certain provisions in relation to the restriction of right and liberty of a person, in respect of which Section 29 in conjunction with Section 33, Section 41 and Section 43 of the Constitution of the Kingdom of Thailand, so permit by virtue of law, the Minister of Energy, with the advice of the National Energy Policy Council, hereby issues the Ministerial Regulation as follows: Clause 1 This Ministerial Regulation shall come into force after the expiration of one hundred and twenty days as from the date of its publication in the Government Gazette. Chapter 1 Type and Size of Building Clause 2 In the case where the total areas of all stories for the construction or modification of any of the following buildings equal to 2,000 square meters or more, that building is required to have energy conservation design under this Ministerial Regulation: (1) Infirmary under the law on infirmary; (2) Education institution; (3) Office; (4) Condominium under the law on condominium; (5) Assembly building under the law on building control; (6) Theatre under the law on building control; (7) Hotel under the law on hotel; (8) Entertainment establishment under the law on entertainment establishment; (9) Department stores or shopping center. Chapter 2 Standard and Rule for Building Design --------------------------------- Part 1 Building Envelope System Clause 3 The overall thermal transfer value of the building. www.ThaiLaws.com 1 (1) The overall thermal transfer value of external wall of air-conditioned area of each type of building shall not exceed the following values: The overall thermal transfer value of external wall of air-conditioned area of the building shall be calculated upon a weighted mean of the total overall thermal transfer value of all external walls. (2) The overall roof thermal transfer value of air-conditioned area of each type of building shall not exceed the following values: (3) In case of building with different types of work space, each work space shall comply with the rule for building envelope system depending on the purpose of use of that work space. Part 2 Electric Lighting System Clause 4 Electric lighting inside the building excludes car parking areas. (1) Electric lighting inside building shall provide sufficient level of luminance for each type of work and shall be in accordance with the law on building control or the law on such matter. (2) The energy consumption of electric lighting equipment inside each type of the following buildings shall not exceed the following loads: (3) In case of building with different types of work space, the loads specified in the above mentioned table shall be applied to each work space depending on the purpose of use of that work space. www.ThaiLaws.com 2

Part 3 Air Conditioning System Clause 5 The air conditioning system and type and size of air conditioning system to be installed to the building shall have the minimum coefficient of performance, energy efficiency ratio and electric power demand per ton refrigeration as notified by the Minister. Part 4 Water Heating Appliance Clause 6 Water heating appliance to be installed to the building shall have the minimum energy efficiency and coefficient of performance as follows: (1) Steam boiler and hot water boiler. (2) Air-source heat pump water heater. Part 5 Overall Energy Consumption of Building Clause 7 The application for construction or modification of building under clause 2 which does not fall within the provisions of Chapter 2, Part 1, Part 2 or Part 3 shall comply with the rule on overall energy consumption of building. The overall energy consumption value of the building under paragraph one shall lower than that of the reference building that having similar work space, direction and building envelope with the building to be constructed or modified and such building is required to have building envelope system, electric lighting system and air conditioning system as prescribed. Part 6 Renewable Energy Deployment in any System of Building Clause 8 If there is renewable energy deployment in the building, electricity consumption of such building shall not include electricity consumption caused by electric lighting system which is designed for exposure to natural light luminance along the building envelope. In this www.ThaiLaws.com 3 case, it shall be deemed as if no electric lighting equipment installed on that building envelope. Such design shall notwithstanding be in accordance with the following conditions: (1) the on-off switch of electric lighting equipment for luminance in the area of building envelope has been explicitly shown in the design and that electric lighting equipment shall not far from the building envelope exceeding 1.5 times of the height of the window in that area; and (2) The window glass along the building envelope under (1) shall have effective shading coefficient of not less than 0.3 with light to solar gain ratio of more than 1.0 and the area of window glass along the building envelope under (1) shall not less than opaque wall area. Clause 9 The building which is capable to generate electricity from solar energy for use therein may deduct the value of such generated electricity from overall energy consumption of the building. Chapter 3 Rule and Procedure for Building Design Calculation Clause 10 Rule and procedure for building design calculation under Chapter 2 shall be notified by the Minister. Transitory Provision Clause 11 Building plan that having been applied together with the application or notification for permission for construction or modification under, or for changing the purpose of use under, the law on building control, or that having been permitted under the law on such matter prior to the date this Ministerial Regulation comes into force, shall be exempted from the execution under this Ministerial Regulation. Given on the 5th Day of February B.E. 2552 (2009) Wannanrat Channukul Minister of Energy Published in the Government Gazette, Vol. 126, Part 12 Kor, dated 20th February B.E. 2552 (2009) Disclaimer This translation is intended to help Thais or foreigners to understand Thailand laws and regulations only, not to use as references, because it is only the original Thai version of legislation that carries legal effect. www.ThaiLaws.com, therefore, shall not be held responsible in any way for any damage or otherwise the user may incur as a result of or in connection with any use of this publication for any purposes. It’s the responsibility of the user to obtain the correct meaning or interpretation of this publication or any part thereof from Thai version or by making a formal request to the appropriate or related authorities.

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