Notes: STEPS = Stated Policies Scenario; RE = renewables. BRN = Brunei Darussalam; KHM = Cambodia; IDN = Indonesia; PHL = Philipines; THA = Thailand; VNM = Viet Nam. Source: IEA (2025), Integrating solar and wind in Southeast Asia electricity demand. In the STEPS, total electrical capacity more than doubles over the next 15 years, with renewables accounting for 75% of new capacity additions. of which over 75% are from solar and wind. capacity, mainly from renewables, both point towards a significant increase in grids investment. A cumulative total of about USD 330 billion of new investment