Holcim Launches Large-Scale Solar Power Installation at Mannersdorf Cement Plant

Thu 13th Nov, 2025

Holcim has expanded its commitment to sustainable energy by commissioning a significant photovoltaic system at its Mannersdorf cement facility. This new solar installation, operational since the summer, is designed to bolster the plant's renewable energy output and reduce its reliance on conventional power sources.

The photovoltaic system at the Mannersdorf site has a capacity of 15.44 megawatts. It is projected to generate approximately 19.3 gigawatt-hours of electricity annually. This output equates to covering around 15 percent of the cement plant's total electricity requirements directly on-site. By integrating solar energy into its operations, Holcim is taking a considerable step toward lowering carbon emissions and supporting Austria's national energy transition goals.

The solar array covers a substantial area within the plant's property, utilizing state-of-the-art photovoltaic panels to capture and convert sunlight into clean electricity. The energy produced is fed directly into the plant's grid, offsetting a significant portion of the electricity that would otherwise be sourced from non-renewable origins. This move is expected to lead to a notable reduction in the facility's carbon footprint over the coming years.

Holcim's investment in solar technology aligns with broader initiatives across the construction and manufacturing sectors to adopt more sustainable practices. The cement industry, known for its high energy demands, has been under increasing pressure to modernize its processes and integrate renewable energy solutions. By implementing large-scale solar generation, Holcim demonstrates a proactive approach to environmental stewardship and operational efficiency.

Experts note that the deployment of renewable energy infrastructure, such as the Mannersdorf photovoltaic plant, not only supports environmental objectives but also enhances energy security and cost stability for industrial operations. The use of on-site renewable generation helps mitigate exposure to fluctuating energy prices and potential supply disruptions.

This development at Mannersdorf is part of Holcim's broader sustainability strategy, which includes investments in energy efficiency, alternative fuels, and innovative building materials. The company's efforts contribute to both its own climate targets and the national agenda for increased renewable energy adoption in Austria.

With the successful implementation of the solar facility, Holcim is expected to explore further opportunities for renewable energy integration at other locations, reinforcing its position as a leader in the transition to more sustainable industrial practices.


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