
Solar PV installation in Vietnam. ASEAN stands out in IEA report with one of the most optimistic forecasts among all regions. (Photo: iStock)
The International Energy Agency (IEA) forecasts a 15% upward revision in renewable capacity growth for the ASEAN region over the next five years, while lowering the global outlook by 5% compared with last year’s prediction.
Despite headwinds, global renewable power capacity is still expected to double by 2030, reaching an additional 4,600 GW and about 900 GW less than projected in last year’s report, according to the IEA’s Renewables 2025 report.
Solar dominates growth as geothermal brings stability
Solar PV continues to drive renewable expansion, accounting for more than 60% of the projected increase in generation. Both utility-scale and distributed PV are growing rapidly in Vietnam, Indonesia, the Philippines, and Thailand.




