Indonesia’s 100 GW solar push faces land, tariff, and procurement challenges

IESR says Indonesia needs faster and more transparent procurement systems to make large solar and hybrid projects investable. PLN’s 2025-2034 plan aims to cut diesel-generated supply by 80% by 2030 across thousands of remote generators, creating a major opportunity for solar-plus-storage if tariff rules are practical. The policy risk is that land constraints and delayed tariff approvals could slow one of Southeast Asia’s largest planned solar expansions.