Jakarta, INTI - PT Indocement Tunggal Prakarsa Tbk is building the largest solar power plant (PLTS) in the Indonesian cement sector, with a total capacity of 71.9 megawatts (MW) across three main factory complexes in Citeureup, Cirebon, and Tarjun.
This step is part of the company's industrial transformation to strengthen decarbonization efforts in the hard-to-abate heavy industry sector, while also supporting the government's target of achieving net-zero emissions by 2060 and accelerating the renewable energy mix.
The PLTS installation is projected to generate more than 108 million kWh of clean energy per year and reduce carbon emissions by more than 85,000 tons of CO2 per year. The environmental impact of this project is also said to be equivalent to planting 1.4 million trees per year.
Amid global pressure on the cement industry, Indocement believes decarbonization can be implemented without sacrificing operational scale, efficiency, or competitiveness.
Indocement’s Long-Term Strategy
Indocement Director, Holger Mørch, stated that the PLTS construction is part of the company's long-term strategy to reduce its overall operational carbon footprint.
"The cement industry has no choice but to transform. At Indocement, we have chosen to lead the way. The construction of the largest solar power plant in the sector is proof that decarbonization can be achieved effectively, on a large scale, measurably, and integrated with the industry's operational needs," said Holger in an official statement on Monday, May 25, 2026.
In addition to solar power plant development, this transformation is also being carried out through the use of alternative fuels such as Refuse-Derived Fuel (RDF), optimization of alternative raw materials to reduce process emissions, development of a low-carbon energy roadmap, and innovation of more environmentally friendly cement products.
As part of the Heidelberg Materials Group, Indocement also applies global sustainability standards to its operations in Indonesia.
Indocement Works Together with SUN Energy
To realize this project, Indocement has partnered with SUN Energy as a strategic partner to provide renewable energy solutions through a sustainability-as-a-service approach.
SUN's Director of Power, Jefferson Kuesar, stated that SUN's role is not only as a solar power plant provider, but also as a decarbonization partner for the industry.
"We ensure the solutions we offer are adaptive to operational needs, remain reliable in the long term, and are business-relevant. This collaboration with Indocement demonstrates that the energy transition can be implemented without disrupting productivity and can even strengthen industrial competitiveness," said Jefferson.
This collaboration is seen as marking a shift in sustainability initiatives from being merely an add-on program to becoming a core strategy within industrial operations.
Conclusion
Indocement is building the largest solar power plant (PLTS) in the Indonesian cement sector with a total capacity of 71.9 MW at its Citeureup, Cirebon, and Tarjun complexes as part of its industrial decarbonization strategy. This project is expected to produce more than 108 million kWh of clean energy per year and reduce carbon emissions by more than 85 thousand tons of CO2 per year, equivalent to planting 1.4 million trees. Indocement partners with SUN Energy, acting as a strategic partner providing renewable energy solutions and industrial decarbonization.
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