TotalEnergies & Holcim Launch Europe’s Largest Floating Solar Plant

Europe’s Largest Floating Solar Plant Powers Industrial Self-Consumption

Belgium – In a significant stride towards industrial decarbonization and renewable energy integration, TotalEnergies and Holcim, a global leader in sustainable construction, have officially inaugurated a groundbreaking floating solar power plant. Situated in Obourg, Belgium, on a rehabilitated chalk quarry now transformed into a lake, the facility boasts an impressive 31 MW capacity. This pioneering project stands as the largest floating solar power plant in Europe specifically designed for industrial self-consumption.

The newly operational plant is engineered to generate approximately 30 GWh of renewable electricity annually. This substantial output will be entirely consumed by Holcim’s adjacent industrial facilities, significantly reducing their reliance on fossil fuels and advancing their sustainability objectives. The strategic placement on a former quarry lake not only repurposes industrial land but also leverages a readily available water surface, minimizing land use conflicts.

To ensure seamless integration and optimize the landscape, an extensive network of over 700 meters of horizontal directional drilling was employed. This complex engineering feat was crucial for connecting the solar panels to the existing electrical substation, a testament to the innovative solutions deployed by the project partners.

Olivier Greiner, Managing Director Retail Power & Gas Belgium at TotalEnergies, expressed his enthusiasm during the inauguration. “We are delighted to inaugurate this floating solar power plant,” he stated. “It clearly demonstrates the ability of TotalEnergies’ teams to innovate and meet the specific needs of our partner, Holcim. We are proud to support them, alongside other industrial clients, in their crucial efforts to decarbonize their operations.”

Holcim, with its core mission focused on advancing sustainable cities, smarter infrastructure, and enhanced living standards worldwide, views this project as a pivotal moment. The company is deeply committed to a future where sustainability is intrinsically woven into its strategic fabric. Holcim’s ambitious vision includes becoming a carbon-neutral entity and actively championing circular construction practices that minimize resource consumption.

Globally, Holcim employs a workforce of 45,000 individuals. In Belgium specifically, the company operates with 985 dedicated employees across 26 diverse sites. This extensive network is united by a common purpose: to drive progress for both people and the planet. Holcim’s operations are structured across four key business segments: Cement, Ready Mix Concrete, Aggregates, and Dry Mortars, each contributing to its overarching sustainability goals.

TotalEnergies, meanwhile, is actively constructing a robust and competitive energy portfolio. This strategy involves a synergistic combination of renewable energy sources, including solar, onshore wind, and offshore wind, alongside flexible assets such as gas-fired power plants with carbon capture (CCGT) and energy storage solutions. The ultimate aim is to provide reliable and clean firm power to its diverse customer base. By the beginning of 2026, TotalEnergies anticipates having a gross renewable power generation capacity exceeding 34 GW. The company has set an ambitious target to achieve a net electricity production of over 100 TWh by the year 2030, underscoring its commitment to a significant transition in the global energy landscape.

The Obourg floating solar plant exemplifies the collaborative spirit and technological innovation required to meet the pressing challenges of climate change and industrial transformation. Its success serves as a compelling model for other industrial players seeking to harness renewable energy and reduce their environmental footprint.

Key Features of the Obourg Floating Solar Plant:

• Capacity: 31 MW
• Annual Energy Production: 30 GWh
• Application: Self-consumption by Holcim’s industrial facilities
• Location: Obourg, Belgium, on a former chalk quarry lake
• Key Innovation: Largest floating solar plant in Europe dedicated to self-consumption
• Infrastructure: Over 700 meters of horizontal directional drilling for electrical connection

This development highlights a growing trend where industrial sites are being reimagined to integrate renewable energy solutions, contributing to a more sustainable and resilient future.