Indonesia's 100 GW Solar Target Faces Major Investment And Regulatory Challenges

Indonesia's plan to develop 100 GW of solar capacity within three years faces major challenges, with analysts pointing to regulatory uncertainty, an underdeveloped solar industry and significant investment requirements.

According to Bisnis Indonesia, the country's installed solar capacity stood at just 1.5 GW by mid-2026, highlighting the scale of deployment needed to achieve President Prabowo Subianto's ambitious target.

Industry experts say building a strong solar ecosystem will be essential. This requires closer coordination among state utility PLN, investors, project developers, manufacturers, contractors and financial institutions. Clear regulations and consistent government policies are also needed to encourage private-sector participation.

Solar power is already a key component of PLN's 2025–2034 electricity supply plan, with development opportunities covering rooftop, ground-mounted and floating solar projects. Independent power producers (IPPs) are expected to contribute to project development across residential, commercial, industrial and utility-scale markets.

However, financing remains a critical barrier. While international green finance could provide substantial capital, investors also need reliable market conditions, regulatory certainty and public support to ensure projects are financially viable.

To improve transparency and attract investment, the Climate Policy Initiative (CPI) Indonesia has introduced a power sector financing dashboard to track funding flows and identify investment opportunities.

Indonesia's 100 GW solar target reflects its strong renewable energy ambitions, but achieving it will require more than capacity expansion. Effective policy implementation, industry coordination and access to long-term financing will be crucial.