ASEAN’s Energy Transition Needs Bankable Projects and Clearer Rules
Southeast Asia needs to make its energy transition projects more attractive to lenders and investors, according to discussions at the Sustainability Impact Dialogue in Bangkok on September 30. The event, jointly organized by The Business Times and UOB Thailand, highlighted how regulatory uncertainty, infrastructure constraints, and commercial risks can prevent investment from reaching projects.
Participants identified electricity networks as a priority and emphasized that transition costs should be shared according to the capacity of businesses, governments, and consumers to bear them. Their discussion underscored a practical challenge: environmental benefits alone do not guarantee that a project can obtain financing.
Investment Needs Remain Substantial
The International Energy Agency’s Southeast Asia Energy Outlook 2026 shows why project development and capital mobilization must advance together. Total energy investment in the region exceeded $100 billion in 2025, while clean energy investment had increased by 60% since 2015. Nevertheless, Southeast Asia accounted for approximately 3% of global energy investment, compared with 9% of the world’s population.
Under today’s policy settings, the region represents nearly 20% of global energy demand growth through 2035. Electricity demand is already expanding twice as quickly as overall energy use, increasing the need for generation, networks and flexibility.
Financing conditions remain a significant obstacle. The IEA reports that the cost of capital in much of Southeast Asia can be around twice that in advanced economies and China. This weakens returns for capital-intensive projects, including renewables and grid infrastructure.
These findings qualify the idea that capital availability is no longer a problem. Investor interest may be substantial, but affordable financing and sufficient investment remain necessary alongside a stronger pipeline of viable projects.
Cross-Border Power Trade Needs Commercial Certainty
The ASEAN Power Grid illustrates how technical ambitions depend on workable investment conditions. The initiative targets fully integrated regional electricity grid operations by 2045, but developers must navigate different national standards, licensing requirements and commercial arrangements.
A September 2026 analysis published by the Asian Development Bank’s Southeast Asia Development Solutions platform identifies construction and completion risks, political approvals and revenue certainty as major financing concerns. Investors need confidence that infrastructure can be completed and that its income will support repayment.
Cross-border trading also requires clarity over ownership, operating responsibilities, transmission charges and access to network capacity. Agreements negotiated separately for individual transactions become harder to manage as more countries and market participants join.
The analysis reports that the ASEAN Centre for Energy is preparing an implementation strategy for multilateral power trading. Its scope includes technical standards, grid codes, licensing and cost recovery.
For developers and electricity buyers, these arrangements matter because a physical connection does not automatically create an accessible market. Predictable trading rules are essential to establish how electricity moves, who pays for transmission, and how disputes are resolved.
Project Preparation Receives Dedicated Funding
Development finance institutions are directing resources toward the work required before large infrastructure projects can attract investment.
On April 7, 2026, ADB launched the Regional Connectivity Fund for Energy in Southeast Asia. The fund supports preparation of cross-border energy and transmission infrastructure associated with the ASEAN Power Grid.
Initial contributions totaled approximately $25 million, provided by Australia, Canada, the European Union, Germany and the United Kingdom. The fund operates under the ASEAN Infrastructure Fund and is managed by ADB in collaboration with regional stakeholders.
Its support includes feasibility studies, engineering design, financial structuring and environmental and social safeguards assessments. It also finances policy advice, regulatory improvements and capacity building.
Separately, ADB has pledged up to $10 billion over ten years for the ASEAN Power Grid and related investments. This covers cross-border connections, domestic networks and renewable energy initiatives supporting power trade.
The distinction between preparation funding and infrastructure financing is significant. Preparation grants help establish whether projects are technically, commercially, and environmentally viable, while larger financing commitments support their subsequent development. Neither commitment should be treated as evidence that all proposed infrastructure has reached construction.
Environmental Classifications Can Support Investment Decisions
Clear definitions of sustainable activities provide another part of the investment framework. Thailand expanded its national taxonomy in May 2025, adding agriculture, construction and real estate, manufacturing, and waste management to the energy and transport sectors covered previously.
The Thailand Taxonomy is a reference tool for classifying environmentally sustainable economic activities. Its objectives cover climate mitigation and adaptation, water resources, circularity, pollution prevention and biodiversity.
For companies, this creates a common basis for describing proposed investments and assessing their environmental characteristics. Financial institutions can use the framework when considering financing opportunities and managing climate-related risks.
A taxonomy does not establish a project’s commercial viability. Its role is to improve environmental classification, while lenders must still assess revenues, implementation risks, and repayment capacity. Applying both assessments helps distinguish a credible environmental proposal from a fully financeable investment.
For businesses planning transition investments, the practical implication is to develop the commercial case alongside the emissions case. Project proposals need realistic schedules, documented regulatory requirements, reliable revenue assumptions, and a clear allocation of risks. Governments and development institutions can support that process through infrastructure planning and preparation funding. The pace of ASEAN’s transition will depend on how consistently these elements translate investment interest into operating assets.
Sources:
https://www.iea.org/reports/southeast-asia-energy-outlook-2026/executive-summary
https://seads.adb.org/articles/asean-power-grid-search-bankable-projects
https://www.adb.org/news/adb-launches-new-trust-fund-accelerate-progress-asean-power-grid
https://www.bot.or.th/en/news-and-media/news/news-20250527.html
Cut through the green tape
We don't push agendas. At Net Zero Compare, we cut through the hype and fear to deliver the straightforward facts you need for making informed decisions on green products and services. Whether motivated by compliance, customer demands, or a real passion for the environment, you’re welcome here. We provide reliable information. Why you seek it is not our concern.