Asia's $217 Billion Infrastructure Gap Widens as 31 GW of New Coal Advances
An OECD report finds the cost of climate-aligned infrastructure is a fraction of the base shortfall, yet coal capacity keeps moving through permitting across six key economies.
An OECD assessment of Kazakhstan, Mongolia, Uzbekistan, Indonesia, the Philippines, and Vietnam puts the region's annual infrastructure financing shortfall at more than $217 billion — a figure that dwarfs the incremental cost of building that infrastructure to climate standards, which the report estimates at roughly 1% of GDP.4
Annual infrastructure investment needs across these six economies run at 5 to 7% of GDP, the OECD calculates. Adding climate alignment costs Indonesia only an extra 0.4% of GDP. Mongolia's transition costs, given a far more carbon-intensive energy system, are estimated at around 1.1% of GDP through 2050. On those numbers, the green premium looks manageable.4
But the building pipeline tells a different story. The OECD report identifies approximately 31 GW of new coal-fired power capacity under development across the six countries, alongside major expansions in gas infrastructure. Coal accounts for around 86% of Mongolia's electricity generation and 58% of Kazakhstan's. These are not theoretical future commitments; they are projects working through permitting and financing now.4
JKM Asian LNG settled at $22.61 per MMBtu on Friday (2026-08-21). That is high enough to keep gas competitive against new coal in markets with import infrastructure in place, but several of the economies in the OECD report lack that infrastructure — which means the gas price offers little near-term relief from coal build. Newcastle thermal coal physical settled at $123.75 per tonne on Friday (2026-08-21), still well above any level that would accelerate early retirement of existing plant across price-sensitive markets in the region.4
The Asian Development Bank announced in May (2026-05-06) a $70 billion plan targeting new energy and digital infrastructure across Asia, with Southeast Asia as the primary beneficiary. The programme includes a pan-Asia power grid initiative designed to connect national and subregional systems. In theory, binding commitments to transmission and clean generation could substitute for some of the coal capacity currently in the pipeline, but the ADB has not quantified that offset.1
Global issuance of green, social, sustainability, and sustainability-linked bonds has exceeded $1 trillion annually, the OECD notes. Investor appetite is not the constraint. The constraint is bankable deal flow — projects structured to attract that capital in markets where regulatory frameworks are thin and currency risk is significant. Closing that gap requires something the headline figures do not supply: a clear accounting of how the $217 billion shortfall is distributed across the six countries, and where sustainable investment is most competitive on a project-by-project basis.4
Nature-based solutions sit at the edge of these financing discussions. Carbon Pulse's analysis published in June (2026-06-12) of the revised Science Based Targets initiative corporate climate standard found the SBTi framework opens a path for scaling nature-based carbon finance, while placing primary emphasis on technology-based removals. That distinction matters for how corporates account for offsets tied to forestry or wetland protection across the APAC region, where voluntary carbon markets are still building credibility.3
India illustrates the legal friction. A Bar and Bench piece published in May (2026-05-24) described the risks facing nature-based projects under India's new Carbon Credit Trading Scheme — including unresolved questions on verification standards, land tenure, and credit volumes that directly shape whether institutional buyers engage or stay out. Those same questions extend across Southeast Asia. Until verification gaps close, nature-based instruments are unlikely to attract the institutional capital needed to offset any meaningful share of the region's infrastructure financing shortfall.2
The 31 GW of coal in the pipeline does not reduce to a financing problem. It reflects utility planning decisions, baseload security calculations, and political economy in economies where coal is cheap, domestic, and deeply embedded in grid operations. The ADB and OECD are pushing complementary arguments — that the incremental cost of sustainable infrastructure is low, that capital is available, and that nature-based solutions can unlock additional credit flows. Those arguments are not wrong. They are also insufficient on their own to redirect capacity decisions already in motion.4,1
The more concrete near-term signal is whether the ADB's $70 billion programme produces binding commitments to transmission and clean generation in Indonesia and the Philippines before additional coal capacity clears financial close. That sequencing will shape the actual carbon trajectory for the region's power sector through the 2030s far more than the gap numbers in any report.1,4