ASEAN Region: Comprehensive Roll - out of Rooftop Solar Energy and Frequent Issuance of Green Certification Standards

26-05-06

Vietnam | Prime Minister's Instruction No. 10 Details Energy-saving Targets for Public Institutions

On May 3, 2026, Vietnamese Prime Minister Pham Minh Phuc officially issued Decree No. 10/CT-TTg, setting six specific goals related to electricity demand management, efficient energy conservation and the development of rooftop solar energy. It requires approximately 10% of government agencies and public institutions, as well as 10% of households across the country to install and use rooftop solar energy themselves. The goal is to strive to achieve a 20% increase in total installed capacity during the period from 2026 to 2030. This decree emphasizes that all ministries and departments need to simultaneously improve the supporting mechanisms for financial support, green credit and technical standards. The provincial government of Chien Hoa has quickly formulated and implemented plans, prioritizing the promotion of rooftop solar energy in office buildings. 

Vietnam's 2026 national economic target requires that the total annual electricity consumption of the entire society be reduced by no less than 3%. During the peak electricity consumption period from April to July, government agencies and public institutions must achieve a year-on-year electricity savings of more than 10%. This directive defines 2026 as the starting point for implementing the economic development plan from 2026 to 2030. The uncertainty in the international energy market has further increased the urgency of this policy push. 

At the local level, the People's Committee of Ha Tinh Province announced a more detailed implementation plan on May 5th. The goal is to have 50% of provincial government office buildings and government agencies install rooftop solar systems by 2030, and at the same time, encourage the simultaneous installation of energy storage equipment (BESS) for systems larger than 100 kilowatts to ensure the stability of the power supply from the grid. The province also proposed that by 2028, 100% of urban lighting in all towns should use integrated LED lamps with intelligent control. 

Meanwhile, on January 21, 2026, Vietnam had already issued Decree No. 30/2026/NĐ-CP, which comprehensively updated the implementation details of the "Energy Conservation and Efficient Utilization Law". This 10th directive further strengthened the implementation of this law at the specific operational level. 

Energy experts have stated that the current cost of rooftop solar installations has dropped to 40% to 50% of what it was five years ago. Even in the northern regions of Vietnam, the investment payback period is only about five years, which provides practical feasibility for the implementation of the policy.


Singapore | The overall goal of green buildings continues to be firmly implemented

The Building and Construction Authority of Singapore (BCA) has been continuously promoting the Singapore Green Building Master Plan (SGBMP), setting a quantitative target of 80-80-80: 80% of the total floor area of buildings in the country will be made green, 80% of new development projects will be constructed as ultra-low energy (SLE) buildings, and the energy efficiency of the highest-quality green buildings will increase by 80% compared to the 2005 benchmark. 

To achieve these goals, Singapore has established a full-cycle mandatory regulatory system covering both new buildings and existing buildings undergoing additions or renovations through the "Building Control Act". This system includes provisions such as conducting regular energy audits for cooling systems, applying higher green certification standards to government land sale projects, and mandatorily requiring the public display of the annual energy consumption performance of buildings. 

Furthermore, the Green Retrofit Incentive Scheme (GMIS-EBP 2.0) in Singapore is still valid. Its core objective is to enhance the energy efficiency of existing buildings, in line with the overall strategic goal of achieving 80% building greenification by 2030.


Indonesia | Jakarta's building energy efficiency regulations enter the implementation stage

The Jakarta Provincial Government previously issued Provincial Governor Regulation No. 5/2026, which officially imposed energy-saving and water-saving requirements on buildings as of February 5, 2026. The goal is to reduce greenhouse gas emissions by 31.89% by 2030 and to increase building energy efficiency and water resource efficiency by 30%. 

According to the industry response dynamics tracked from May 1st to 6th, the local council of Jakarta has raised higher expectations for the implementation of this policy, emphasizing the need to combine public awareness campaigns and regular performance monitoring to ensure that building owners fulfill their energy-saving obligations. The construction industry contributes approximately 60% of Jakarta's local carbon emissions, so this policy is regarded as a key measure for achieving a low-carbon city in the capital.


Thailand | Green Building Standards Are Being Implemented Simultaneously

The Thai Industrial Standards Institute (TISI) will officially launch a series of sustainability standards for buildings and civil engineering in the year 2026. These standards cover various categories such as carbon footprint accounting for existing buildings (standard numbers 203 to 204), detachable design and adaptability principles (number 205), sustainability indicator assessment (number 206), and core rules for environmental impact product declarations (number 208). The centralized introduction of these unified standards marks a significant step for Thailand in the green evaluation of construction projects, moving from referring to international systems to fully establishing its own localized national standards. 

Meanwhile, on April 22nd, the Thai real estate company SC Asset collaborated with the Thai Green Building Research Institute to release the SC Green Mark standard. This standard mainly targets single-family residential projects and has established a self-developed evaluation framework covering four dimensions: environmental burden reduction, energy efficiency and water conservation, human settlement health care, and sustainable innovation, based on the LEED, WELL, and local TREES standards. Thailand has gradually formed a differentiated policy framework in the green certification field, with TREES as its local characteristic and in collaboration with LEED through the "TGG-LEED collaborative mechanism". This provides additional policy support for local projects that meet international market standards.


Malaysia | Strengthening of Green Regulations Effectiveness

The construction industry in Malaysia is generally concerned that the 2026 "Energy Efficiency and Energy Conservation Act" is tightening its enforcement after the initial industry adaptation period, marking the full launch of mandatory green buildings. Correspondingly, the green provisions in the building regulations will further transition in the assessment methods to measurable performance-based standards. At the local level, Kuala Lumpur has implemented the Low Carbon Building Checklist (KLLCBC) to support its urban development goal of reducing carbon dioxide emissions by 70% by 2030 through concrete actions. 

The policy review shows that both Thailand and Malaysia currently offer tax subsidy incentives to green building materials enterprises. Additionally, the regional standard synergy effect under the RCEP framework is also continuously being unleashed.