Wind power and other renewables
The production of cement requires electricity- and fuel-intensive processing steps, which is why switching to green energy sources is one of the key levers to achieving our net-zero targets. Thanks to their favorable geographic locations, in 2021 our plants in Lägerdorf (Schleswig-Holstein) and Höver (Lower Saxony) covered 10% of their electricity requirements from onshore wind power. As the plant operators are also shareholders of the wind farms, Holcim buys energy directly from the producers.
The wind turbines are Ü20 (Over 20) plants that are no longer subsidized under Germany’s Renewable Energies Act (EEG), which means they can be used for direct green power supply to industrial customers. In total, Holcim consumed 2.2 million GJ of electricity in cement production in Germany in 2021, and the share of green electricity was just under 30%. Electricity from wind power accounted for 12%, resulting in 31,000 tons of saved CO2 emissions. By the end of 2022, it accounted for 50% of electrical energy, saving more than 128,000 tons of CO2 emissions.
Currently, the energy mix in the aggregates and ready-mix concrete business consists of just over 47% renewable energy. Our goal is to significantly expand renewable energy to over 80% by 2030. To achieve this, we are negotiating other Power Purchase Agreements (PPAs) and the construction of renewable electricity generation plants for our own consumption in several locations across Germany.