Skip to content
Sirkularium
Back to Insight
Energy & Climate

Indonesia courts Chinese capital for its 100 GW solar program

By Sirkularium Editorial Team, 8 min read

Aerial view of a large-scale solar power installation in Indonesia, panels arranged across open or floating terrain with workers or engineers inspecting equipment

Coordinating Minister Airlangga Hartarto invited Chinese companies to invest in Indonesia's 100 gigawatt solar target during a Shanghai meeting, pointing to the Cirata floating solar plant as proof the partnership already works.

At a glance
100 GW
National solar target by 2029
US$8.1 billion
China's 2025 investment realization in Indonesia
24,000 ha
Java land prepared for solar development
Rp37.1 trillion
Investment value across 30 Two Countries Twin Parks MOUs

A Shanghai meeting advances Indonesia's solar ambition

On the evening of Friday, July 17, 2026, Coordinating Minister for Economic Affairs Airlangga Hartarto sat down with China's Minister of Commerce Wang Wentao in Shanghai and asked for something specific: Chinese corporate capital to help build out Indonesia's 100 gigawatt solar power program. The request was reported the following day across Indonesia's business press, from Kompas and Liputan6 to Suara, Republika, and the national wire service Antara, a spread of coverage that signals how central the solar buildout has become to the government's economic diplomacy.

The 100 GW target, part of President Prabowo Subianto's push to accelerate Indonesia's energy transition and support industrial downstreaming, is scheduled for completion by 2029. Airlangga's pitch in Shanghai was not abstract. He asked Wang Wentao to help translate goodwill into projects, and he urged the formation of joint ventures between Indonesian and Chinese firms to speed up implementation, according to Antara's report of the meeting.

Indonesia and China's Ministry of Energy and Mineral Resources have already worked together on the country's best-known renewable energy showcase: the Cirata Floating Solar Power Plant, a joint effort frequently cited by Indonesian officials as evidence that large-scale cooperation with Chinese developers can deliver working infrastructure rather than paper agreements. Referencing that project, Hartarto said Indonesia appreciated the investment China had already made there and pointed to it as a template for what a scaled-up 100 GW pipeline could look like.

The numbers behind the invitation

The scale of the ask sits inside a broader economic relationship. Bilateral trade between Indonesia and China reached US$154.6 billion in 2025, growing at an average of 7.24 percent annually between 2021 and 2025. China's realized investment in Indonesia in 2025 came to nearly US$8.1 billion, about 13 percent of all foreign direct investment the country recorded that year, spread across manufacturing, trade, energy, property, and transportation and warehousing.

On the ground in Java, Indonesian authorities have prepared roughly 24,000 hectares of land for solar development, according to Antara's English-language report on the meeting, a figure meant to reassure prospective investors that siting is not the bottleneck it might otherwise be for a program of this scale.

A separate but related track of cooperation, the Two Countries Twin Parks framework, has produced 30 memoranda of understanding between Indonesian and Chinese industrial partners, with an estimated combined investment value of Rp37.1 trillion. Airlangga's message in Shanghai was that these commitments now need to move from documents to construction sites. He asked that agreements already signed be converted into active investment as quickly as possible.

"Indonesia appreciates China's investment in the development of the Cirata Floating Solar Power Plant. The project demonstrates the massive potential for Indonesia-China cooperation in supporting the energy transition," Hartarto told Wang Wentao, according to Antara's English service.

Why Chinese capital matters for the 100 GW push

Indonesia's solar target has moved quickly since it was first set. President Prabowo compressed the original build-out timeline from five years to three earlier this year, a response in part to coal-linked blackouts that hit parts of Sumatra and Java and exposed the fragility of a grid still heavily dependent on a single fuel source. Independent analysts have separately estimated Indonesia needs on the order of tens of billions of dollars in cumulative investment to reach 100 GW by the government's own deadline, a financing gap that domestic capital alone is unlikely to close.

China is a natural partner to help close that gap. It is already the source of a meaningful share of Indonesia's foreign direct investment, its manufacturers dominate global solar panel and battery supply chains, and its firms have direct operating experience in Indonesia through Cirata and other energy projects. For a government trying to move from announcement to construction, working with an investor base that already understands local permitting, land, and grid-connection realities carries obvious appeal.

The framing Airlangga used in Shanghai, emphasizing joint ventures rather than pure capital transfers, also matters for how the benefits of this investment reach Indonesian institutions and workers. Joint ventures typically bring technology transfer, local employment, and shared project governance in ways that straight financing arrangements do not, and they align with the government's broader hilirisasi, or downstreaming, agenda, which aims to keep more of the value from Indonesia's resource and energy sectors inside the domestic economy rather than exporting raw inputs and importing finished technology.

Cirata as proof of concept

The repeated reference to Cirata across multiple news reports of the Shanghai meeting is worth dwelling on. The floating solar installation, built on the Cirata reservoir in West Java with Chinese investment participation, has functioned for Indonesian officials as a working example rather than a hypothetical case study. It demonstrates that floating solar is technically viable on Indonesia's reservoirs, that Chinese developers can deliver a large-scale renewable project on Indonesian soil, and that the resulting power can be integrated into the existing grid.

For a 100 GW target that will require dozens or hundreds of individual project sites across a geographically dispersed archipelago, having even one credible reference project changes the conversation with prospective investors and lenders. It gives ministries a concrete answer when asked whether this kind of partnership actually delivers operating infrastructure, and it gives Chinese firms a domestic track record to point to when seeking board or shareholder approval for further Indonesian commitments.

What comes next

The Shanghai meeting produced an invitation and a set of figures, not yet a signed project pipeline specific to the 100 GW target. The next markers to watch will be whether the 30 Two Countries Twin Parks memoranda convert into groundbreakings, whether new joint ventures are announced between named Indonesian and Chinese firms, and whether the Ministry of Energy and Mineral Resources publishes updated figures on installed and contracted solar capacity against the 2029 deadline. Indonesia's own reporting shows the country crossed roughly 1.5 GW of total installed solar capacity in 2025, with rooftop solar alone climbing from about 146 megawatts in 2024 to roughly 1.3 GW by 2026, a pace of growth that will need to accelerate substantially to reach 100 GW within the compressed three-year timeline.

Indonesia's participation in APEC 2026, hosted by China, offers a further venue in the coming months for both governments to formalize any commitments that emerge from this bilateral track, alongside existing frameworks such as the Regional Comprehensive Economic Partnership.

Sirkularium's view

For government and public institutions tracking Indonesia's energy transition, this meeting is best read as a financing signal rather than a finished deal. The 100 GW target has real momentum behind it, evidenced by the compressed timeline, the land already prepared in Java, and the willingness of senior ministers to court capital directly rather than wait for it to arrive. What will determine whether that momentum holds is execution discipline: converting memoranda into permitted projects, ensuring joint ventures deliver genuine technology transfer and local capacity building rather than turnkey imports, and keeping the grid infrastructure and storage investments moving in step with new generation capacity so that new solar assets can actually be dispatched.

For institutions responsible for permitting, land allocation, or grid planning, the practical takeaway is to treat the next several months as a period when Chinese project proposals tied to this invitation are likely to arrive for review. Building the institutional capacity now to evaluate these proposals quickly and consistently, with clear standards for local content, workforce development, and grid integration, will do more than any single ministerial meeting to determine whether Indonesia's 100 GW ambition becomes installed capacity on schedule.

ShareLinkedInWhatsAppFacebookEmail
Sirkularium

Sirkularium is a thought-leadership and advisory institution accelerating the circular transition across solid waste, water, and energy, working with government and public institutions.

In energy and climate, Sirkularium supports emissions baselines, renewable and storage planning, and carbon and policy frameworks that hold up in practice.

Related articles

A sorghum field in Lampung beside a pilot scale bioethanol processing unit, with technicians in safety gear inspecting fermentation and distillation equipment
Energy & Climate

Pertamina New & Renewable Energy launched a Bioethanol Development Center in Tegineneng, Pesawaran Regency, Lampung on 14 September 2026, paired with a provincial cooperation agreement and an international research memorandum. The pilot plant is deliberately small at 60 kilolitres a year, built to prove feedstock, process and yield before capital commits at scale.

By Sirkularium Editorial Team, 9 min read

PLN technicians repairing a damaged electrical substation and transmission poles in a rural East Nusa Tenggara landscape shortly after an earthquake, with a national flag visible in the background ahead of Independence Day
Energy & Climate

A magnitude 7.0 to 7.7 earthquake struck the Flores Sea on 15 August 2026, knocking out two gas plants and damaging eleven substations in East Nusa Tenggara. PLN restored all eleven within 12 hours, then used the same province as its command post for the national grid's 81st Independence Day watch on 17 August, which closed with a 9 gigawatt, 21.1 percent reserve margin and no reported disruption.

By Sirkularium Editorial Team, 9 min read

Refinery workers and an operations manager reviewing a digital energy monitoring dashboard on a control room screen inside an Indonesian oil refinery
Energy & Climate

On 13 August 2026, PT Kilang Pertamina Internasional kicked off Bulan Energy & Loss 2026 simultaneously across all its refinery units, urging workers toward energy efficiency and loss reduction under a digitalization theme. The campaign follows a 2025 in which the refining unit cut more than 450,000 tonnes of CO2 equivalent against a 370,000 tonne target.

By Sirkularium Editorial Team, 8 min read

Interior of an Indonesian cement plant showing a rotary kiln and alternative fuel feed conveyor, with an operator in safety gear checking instrumentation
Energy & Climate

SIG reported on 13 August that alternative fuel use rose 24 percent to 681 thousand tonnes in 2025, displacing 467 thousand tonnes of coal and lifting its thermal substitution rate to 9.77 percent. Scope 1 emission intensity now sits 21 percent below the 2010 baseline, against a company target of 27 percent by 2030.

By Sirkularium Editorial Team, 8 min read

Provincial officials and community forestry group members signing documents at a table in a Jakarta meeting room, with Indonesian forest landscape imagery on a screen behind them
Energy & Climate

On 12 August the Environmental Fund Management Agency signed cooperation agreements with ten more provinces under the Results-Based Payment REDD+ Green Climate Fund programme, taking provincial coverage to 34 of 38. Total commitments to provincial programmes now stand at Rp761.02 billion, and the money traces back to 20.25 million tonnes of verified emission reductions.

By Sirkularium Editorial Team, 8 min read

Engineers and officials reviewing solar project plans on a table with laptops in a bright Jakarta meeting room, with a rooftop solar array visible through the window
Energy & Climate

At a media briefing in Jakarta on 11 August, Bappenas, GIZ and the Indonesian Solar Energy Association set out how ISEW 2026 will connect prepared projects with investors. The emphasis has shifted from headline capacity to bankability, grid readiness and a phased build sequence.

By Sirkularium Editorial Team, 8 min read