Southeast Asia’s (SEA) green economy which is valued at approximately $290 billion today, is projected to reach $430 billion by 2030, a report said Monday.
Demand across power, transport and industrial sectors is accelerating as investment flows towards commercially viable projects linked to electrification, artificial intelligence, electric vehicles (EVs) and digital infrastructure. the report by Bain & Company and Standard Chartered said.
However, it noted that the challenge facing Southeast Asia is no longer capital mobilization but the ability of systems and infrastructure to convert available funding into operational projects.
Capital follows demand, bankability and speed to delivery — not mandates, the report said, adding that geopolitical tensions, fragmented policy environments and rising energy security concerns are reshaping investment decisions globally.
Patrick Lee, the Chief Executive Officer for Singapore as well as ASEAN and South Asia at Standard Chartered, said ASEAN’s green economy has already reached significant scale, but roughly 35 percent of announced green capital expenditure across the region has yet to be realized — a wider shortfall than in many other global markets.
According to the report, more than 100 terawatt-hours of new electricity demand is expected by 2030, driven mainly by data centers, EV infrastructure and industrial clusters as ASEAN moves towards becoming the world’s fourth-largest economy with a population exceeding 700 million.
Yet while demand from these sectors is expected to materialize within one to three years, power grid infrastructure typically requires between five and 15 years to develop.
The report warned that this mismatch is turning grid infrastructure into a critical bottleneck that increasingly determines where investment capital flows.
Lee said more than 70 percent of ASEAN’s data center demand is concentrated in Singapore and Johor, placing significant pressure on transmission networks that were not designed for such rapid and concentrated growth.
Citing Bain & Company’s Southeast Asia Data Center Operator and Hyperscaler Survey conducted in February 2026, the report said limited transmission capacity and delays in grid connections could constrain future data center investment in the region.
It added that cross-border electricity trade and regional grid interconnections could unlock an additional $70 billion in clean energy and grid-related investments by 2030 by connecting renewable energy supply to major demand centers.
The report also highlighted challenges facing ASEAN’s EV ecosystem despite the region emerging as one of the world’s fastest-growing EV markets.
Although EV demand is rising sharply, around 70 percent of EV value creation continues to flow outside Southeast Asia, while the region currently accounts for only about 2 percent of global EV production.
The report warned that without coordinated investments in manufacturing, supply chains and supporting infrastructure, ASEAN risks remaining primarily an EV consumption market rather than becoming a production hub.
It estimated that up to $50 billion in value could shift to more advanced EV markets by 2030 if ASEAN fails to strengthen its EV manufacturing capabilities within the next 24 to 36 months.
At the same time, deeper regional integration across the EV value chain could unlock an additional $130 billion to $160 billion by 2035.
Lee said stronger coordination across infrastructure, policy and execution would be crucial to narrowing the widening gap between announced investments and completed projects.
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