TotalEnergies and Holcim inaugurate Europe's largest floating solar plant for self-consumption

Type: Development · Technology: Solar · Country: Belgium · Capacity: 31 MW · Announced: 2026-03-20

TotalEnergies and Holcim have inaugurated Europe's largest floating solar plant dedicated to self-consumption, located at Holcim's cement plant in Obourg, Belgium. The 31 MW facility, comprising 55,000 solar panels across 17 hectares of water on a rehabilitated chalk extraction site, produces 30 GWh of renewable electricity annually. This project supports Holcim's decarbonization strategy by providing clean energy for its cement production operations. The plant represents a significant innovation in industrial self-consumption and landscape integration, featuring a 700-meter directional drilling connection to minimize visual impact.

Analysis

TotalEnergies and Holcim have inaugurated a 31 MW floating solar plant in Obourg, Belgium, with 55,000 solar panels across 17 hectares of water. TotalEnergies is a global integrated energy company that produces and markets energies, while Holcim is a global leader in sustainable construction, offering high-value building materials and solutions. The plant, located at Holcim's cement plant, produces 30 GWh of renewable electricity annually. The project was announced on 2026-03-20 and is now operating. The facility features a 700-meter directional drilling connection to minimize visual impact.

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