Indocement Builds Indonesia’s Largest Solar Power Installation in the Cement Sector with 71.9 MW Capacity

Jakarta, 11 May 2026 — PT Indocement Tunggal Prakarsa Tbk. (“Indocement”) has taken a leading step in industrial transformation by developing the largest solar power installation in Indonesia’s cement sector, with a total capacity of 71.9 MW across its three main production complexes: Citeureup, Cirebon, and Tarjun.

This initiative reinforces Indocement’s position as a pioneer of decarbonization in the hard-to-abate sector and sets a benchmark for the industry, demonstrating that the energy transition is no longer merely aspirational, but is already being implemented at industrial scale. The project also represents a tangible contribution to the Indonesian government’s Net Zero Emissions 2060 target and the acceleration of the national renewable energy mix. Amid growing global pressure on the cement industry, this move shows that decarbonization can be pursued without compromising scale, efficiency, or industrial competitiveness.

The solar installation is projected to generate more than 108 million kWh of clean energy annually, reduce carbon emissions by more than 85,000 tons of CO2 per year, and create an environmental impact equivalent to planting 1.4 million trees each year. This level of impact positions the project among the most significant industrial decarbonization initiatives in Indonesia today.

For Indocement, however, this is more than simply an energy project.

The transformation forms part of the company’s long-term strategy to comprehensively reduce its operational carbon footprint through:

• the use of alternative fuels such as refuse-derived fuel (RDF),
• the optimization of alternative raw materials to reduce process emissions,
• the development of a low-carbon energy roadmap, and
• innovation in more environmentally friendly cement products.

As part of the global Heidelberg Materials group, Indocement also brings world-class sustainability standards into its operations in Indonesia, ensuring that this transformation is not only locally relevant, but also globally competitive.

Holger Mørch, Director of Indocement, said, “The cement industry has no choice but to transform. At Indocement, we have chosen to lead that transformation. The development of the largest solar power installation in the sector is proof that decarbonization can be delivered in a real, measurable, large-scale manner, fully integrated with the operational needs of industry.”

To realize this initiative, Indocement partnered with SUN Energy as a strategic partner in delivering a renewable energy solution that functions not only as a source of power, but as part of the industrial operating system of the future.

Through its sustainability-as-a-service approach, SUN provides solutions that ensure:

• reliable energy supply for heavy industrial operations,
• long-term cost efficiency, and
• enhanced energy security amid global energy price volatility.

Jefferson Kuesar, Director of Power, SUN, said, “For us, SUN’s role goes beyond being a solar power provider. We are a decarbonization partner for industry. We ensure that the solutions we deliver are adaptive to operational needs, reliable over the long term, and commercially relevant. Our collaboration with Indocement demonstrates that the energy transition can be implemented without disrupting productivity — and can in fact strengthen industrial competitiveness.”

This collaboration marks an important shift: from sustainability initiatives being viewed as supplementary efforts to becoming a core strategy in industrial operations. With its scale and integrated approach, the project sends a strong signal that industrial decarbonization in Indonesia is already happening today through measurable and sustainable action.

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