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Indocement builds the largest solar plant in Indonesia’s cement sector, at 71.9 MW
Indocement is developing 71.9 MW of solar across its Citeureup, Cirebon and Tarjun plants with SUN, projected to generate 108 million kWh and avoid 85,000 t CO₂ a year.
Summarise with AI
What is Indocement’s 71.9 MW solar project?
Indocement, part of the Heidelberg Materials group, is developing a solar power installation with a total capacity of 71.9 MW across its three main production complexes. Announced in Jakarta on 11 May 2026, it is the largest solar installation in Indonesia’s cement sector.
| Owner | PT Indocement Tunggal Prakarsa Tbk (Heidelberg Materials group) |
|---|---|
| Energy partner | SUN |
| Total capacity | 71.9 MW |
| Sites | Citeureup, Cirebon and Tarjun production complexes |
| Projected generation | More than 108 million kWh per year |
| Projected emissions cut | More than 85,000 t CO₂ per year |
| Stated equivalent | 1.4 million trees planted each year |
| Announced | 11 May 2026, Jakarta |
Why does solar matter in a hard‑to‑abate sector like cement?
The project shows that the energy transition in heavy industry is already happening at industrial scale. It contributes to the Indonesian government’s Net Zero Emissions 2060 target and to a higher share of renewables in the national energy mix.
85,000+ t CO₂
projected emissions cut per year from the 71.9 MW installation.
Source: SUN, 25 May 2026 · pending SUN validation
As global pressure on the cement industry grows, Indocement’s position is that decarbonisation can go ahead without giving up scale, efficiency or competitiveness.
How does solar fit Indocement’s decarbonisation strategy?
Solar is one part of a long-term plan to cut the company’s operational carbon footprint. The plan also includes:
- alternative fuels such as refuse-derived fuel (RDF);
- alternative raw materials to reduce process emissions;
- a low-carbon energy roadmap;
- more environmentally friendly cement products.
“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.”
What does SUN deliver as Indocement’s energy partner?
SUN works with Indocement under a sustainability-as-a-service approach: the solar installation is treated as part of the plant’s operating system rather than a stand-alone power source. SUN’s brief covers three outcomes:
- reliable energy supply for heavy industrial operations;
- long-term cost efficiency;
- stronger energy security amid global energy price volatility.
“For us, SUN’s role goes beyond being a solar power provider. We are a decarbonization partner for industry. … Our collaboration with Indocement demonstrates that the energy transition can be implemented without disrupting productivity — and can in fact strengthen industrial competitiveness.”
For other industrial companies, the project marks a shift from sustainability as a side initiative to sustainability as core operating strategy. See how SUN approaches integrated energy solutions or request a consultation.
Frequently asked questions
How big is Indocement’s solar installation?
71.9 MW in total, spread across Indocement’s three main production complexes in Citeureup, Cirebon and Tarjun. It is the largest solar installation in Indonesia’s cement sector.
How much electricity will the Indocement solar plant generate?
It is projected to generate more than 108 million kWh of clean electricity per year.
How much CO₂ will the project avoid?
More than 85,000 tonnes of CO₂ per year, which Indocement and SUN state is equivalent to planting 1.4 million trees each year.
Who is Indocement’s solar partner?
SUN, which delivers the project under a sustainability-as-a-service approach focused on reliable supply, long-term cost efficiency and energy security.
Is solar Indocement’s only decarbonisation measure?
No. It sits alongside alternative fuels such as refuse-derived fuel (RDF), alternative raw materials, a low-carbon energy roadmap and lower-carbon cement products.
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