Hoffmann Green Cement and green energy developer The Valorem Group have poured the world’s first wind turbine foundation made from 0% clinker decarbonised concrete.
It’s for the Plaine des Moulins wind farm in Jazeneuil, in France’s Nouvelle-Aquitaine region.
According to Hoffman Green, the foundation used 630 cubic metres of its concrete, saving 33 tonnes of CO2.
That was 32% less embodied carbon than traditional concrete could achieve without any change in construction methods, the company said.
The company says its cold manufacturing process makes 0%-clinker cement with a carbon footprint five times smaller than traditional cement.
It uses blast furnace slag from metals production, flash clay, gypsum and desulfogypsum.
The pour was carried out in a single operation, with a high density of reinforcement.
The new wind farm will have five turbines, each 180m high at the blade tip, with a total installed capacity of 18MW.
It will generate around 42GWh of green electricity, equivalent to 18.6% of the electricity consumption of the Haut Poitou community.
It’s scheduled for commissioning in early 2025.
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