Indonesia Accelerates 100 GWp Solar Ambition: Minister Bahlil Announces Tenders for Seven Major PLTS Projects

JAKARTA – In a move that signals a tectonic shift in Southeast Asia’s energy landscape, the Indonesian Government, through the Ministry of Energy and Mineral Resources (ESDM), has officially invited the private sector to spearhead a massive expansion of the nation’s solar capacity. Minister Bahlil Lahadalia announced on Tuesday that seven large-scale Solar Power Plant (Pembangkit Listrik Tenaga Surya or PLTS) projects are now ready for the tendering process, marking the first operational phase of the ambitious 100 Gigawatt-peak (GWp) national solar roadmap.

This announcement, delivered during the official launch of the "100 GWp PLTS Program," underscores Indonesia’s commitment to transitioning away from coal-dependency toward a renewable-heavy energy mix. The initiative is not merely a technical upgrade to the national grid but a strategic economic pivot aimed at attracting billions in foreign direct investment while ensuring energy sovereignty and affordability.

Main Facts: A Hybrid Investment Model for Renewable Energy

The core of Minister Bahlil’s announcement revolves around the involvement of Independent Power Producers (IPPs). The government is positioning the private sector as the primary engine for this 100 GWp journey, provided they can meet the government’s stringent requirements for price efficiency.

The "Competitive or State-Led" Ultimatum

Minister Bahlil introduced a unique "carrot and stick" approach to the tendering process. While the government prefers IPPs to manage these projects to leverage private capital and technical expertise, it has set a clear benchmark for competitiveness.

"If the price is competitive, we give it to the IPPs," Bahlil stated. However, in a significant policy revelation, he noted that if the private sector fails to offer affordable rates or if investor interest wanes, the government will not allow the projects to stall. Instead, the newly formed sovereign investment agency, Danantara, will take over the projects. This ensures that the 100 GWp target remains on track regardless of market volatility, funded by state-aligned financing that prioritizes "efficiency, effectiveness, and affordability" as directed by the President.

Immediate Groundbreaking and Scale

The program is starting with a significant momentum. Alongside the announcement of the seven tender-ready projects, the government has already commenced the groundbreaking of 14 other PLTS projects. These initial sites represent a combined capacity of 5.3 GWp, spread across strategic industrial and residential hubs including West Java, East Java, the Bangka Belitung Islands, and the Riau Islands. Furthermore, Bali is set to become a "Green Province" lighthouse project with a dedicated 1,000 MW (1 GW) solar installation coupled with large-scale battery energy storage systems (BESS).

Chronology: From Vision to Execution (2024–2026)

The 100 GWp program did not emerge in a vacuum. It is the culmination of a multi-year strategic shift in Indonesia’s National General Energy Plan (RUEN).

• Phase 1: The Regulatory Foundation (Late 2024 – Early 2025): Following international climate commitments at COP summits, the Indonesian government began restructuring its energy regulations to allow for larger renewable quotas. The Ministry of ESDM worked closely with the state utility company, PLN, to identify "green corridors" where solar energy could be integrated without destabilizing the national grid.
• Phase 2: The 100 GWp Roadmap Launch (Mid-2025): The President officially declared the 100 GWp target, a bold leap from previous targets which were often criticized as too conservative. This phase involved mapping the vast archipelago for solar potential, focusing heavily on "Floating Solar" (PLTS Terapung) to bypass land-acquisition hurdles.
• Phase 3: The Current Tender Announcement (August 2026): Minister Bahlil’s announcement on August 25, 2026, represents the shift from planning to procurement. By opening tenders for the seven specific sites, the government has moved into the "Massive Acceleration" stage, intended to span the next three years.
• Phase 4: The Three-Year "Fast-Track" (2026–2029): The government intends to complete the construction of the first 5.3 GWp within this window while simultaneously rolling out subsequent tender batches to reach the 100 GWp milestone by the early 2030s.

Supporting Data: The Seven Ready-to-Tender Projects

The seven projects identified by Minister Bahlil represent a mix of land-based and floating solar technologies. Floating solar, in particular, has become Indonesia’s signature renewable strategy, utilizing the surfaces of existing hydroelectric dams to minimize land use and increase panel efficiency through water cooling.

Technical Highlights

• The Floating Giants: The Jatiluhur and Cirata projects are set to be among the largest floating solar arrays in the world. By expanding the existing Cirata facility (which was previously inaugurated at 192 MWp), the government is scaling proven technology to a gigawatt-scale level.
• The Bali Battery Initiative: The 1,000 MW project in Bali is unique because it includes a "plus battery" component. This is essential for Bali’s tourism-heavy economy, providing "baseload-like" reliability from a variable renewable source.
• Land Bank Utilization: The Purwakarta project utilizes land from the government’s "Bank Tanah," demonstrating inter-ministerial cooperation to solve the perennial problem of land acquisition in infrastructure projects.

Official Responses: Government and Stakeholder Perspectives

Minister Bahlil Lahadalia’s Directives

In his address at the Presidential Secretariat, Minister Bahlil emphasized that the government’s role has shifted from a mere regulator to an active facilitator. "Our direction from the President is clear: we must push the IPPs. This is the first step," Bahlil said. He further clarified that the government is no longer willing to wait for slow-moving private investments. The involvement of Danantara (the Indonesia Investment Authority’s evolved form) serves as a strategic guarantee that the energy transition is a matter of national security and will proceed with or without traditional private financing.

The Role of Danantara

Economic analysts have noted that the mention of Danantara is a significant development. By positioning a state-backed investment body as the "fallback" developer, the government is signaling to the market that these projects are de-risked. If the private sector finds the "competitive price" too low to achieve their desired Internal Rate of Return (IRR), the state will step in, viewing the projects as long-term infrastructure rather than short-term profit centers.

PLN’s Integration Strategy

While not the primary speaker at this specific event, officials from the state electricity giant PLN have previously indicated that the 100 GWp program will require a "Green Enabling Supergrid." This supergrid will connect the solar-rich islands of Java and Sumatra with industrial demand centers, ensuring that the 1,688 MWp from Jatiluhur, for example, can be distributed efficiently without causing local grid instability.

Implications: A New Era for the Indonesian Economy

The launch of the 100 GWp PLTS program carries profound implications for Indonesia’s future, touching on environmental, economic, and geopolitical spheres.

1. Achieving Net Zero and International Commitments

Indonesia has pledged to reach Net Zero Emissions by 2060 or sooner. With coal currently dominating the power sector (approx. 60-70%), the 100 GWp solar program is the single most important lever to decarbonize the grid. This move aligns with the Just Energy Transition Partnership (JETP) agreements, potentially unlocking billions of dollars in climate finance from the G7 and international lenders.

2. Boosting Domestic Manufacturing (TKDN)

A project of this scale necessitates a local supply chain. The Ministry of Industry is expected to enforce Domestic Component Level (TKDN) requirements, which will likely lead to the establishment of more solar cell and module factories within Indonesia. This could transform Indonesia from an importer of solar technology into a regional manufacturing hub, creating hundreds of thousands of "green-collar" jobs.

3. Energy Affordability and Industrial Competitiveness

By insisting on "competitive prices," Minister Bahlil is attempting to ensure that the green transition does not lead to a spike in electricity tariffs. For the industrial sector, access to cheap, green energy is becoming a prerequisite for global trade, especially with the European Union’s Carbon Border Adjustment Mechanism (CBAM). A solar-powered industrial base would make Indonesian exports like nickel, aluminum, and textiles more attractive in carbon-conscious markets.

4. Technical Challenges: Intermittency and Storage

The massive influx of 100 GWp of solar power presents a significant technical challenge: intermittency. Solar only produces power during the day. The government’s focus on Bali’s 1,000 MW "plus battery" project suggests a pilot for a national rollout of storage technology. The success of these initial seven tenders will depend largely on how the government and IPPs manage the cost of battery storage to ensure 24/7 grid stability.

5. Geopolitical Leadership in ASEAN

By aggressively pursuing the 100 GWp target, Indonesia is positioning itself as the leader of the ASEAN Power Grid. The excess energy generated in the Riau Islands, for instance, could potentially be exported to Singapore or Malaysia, turning Indonesia into a "Green Energy Battery" for Southeast Asia.

Conclusion

The announcement by Minister Bahlil Lahadalia marks the end of the "deliberation phase" for Indonesia’s energy transition and the beginning of the "execution phase." With seven major projects heading to tender and a massive 5.3 GWp already under groundbreaking, the 100 GWp goal is no longer a distant dream but a tangible roadmap. Whether through the efficiency of the private sector (IPPs) or the strategic weight of the state (Danantara), Indonesia is firmly committed to a solar-powered future, aiming to balance the scales between environmental necessity and economic growth.