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RWE’s Kaskasi offshore wind farm will provide green electricity to seven major German industrial customers starting in 2026. In this regard, relevant Power Purchase Agreements (PPAs) have been inked between RWE Supply & Trading and DHL Group, Ensinger, Evonik, Infraserv Höchst, thyssenkrupp Steel Europe and Vodafone. In Spring 2023, Kaskasi already executed the first PPA with the retail divisions of the Schwarz Group (Lidl, Kaufland).
The term of the majority of the PPAs is ten years. Each PPA also has either a direct purchase (“as-produced”), a scheduled profile delivery (“as-nominated”), or a delivery of constant volumes (“baseload delivery”). The commitment under the first contract will be fulfilled in 2026, and the performance of subsequent contracts will follow in 2027 and 2028 to allocate the electricity volume.
Kaskasi wind farm is situated approx 35 kilometers off the coast of Heligoland and consists of 38 wind turbines with a total installed capacity of 342 MW. Kaskasi is capable of supplying green electricity to 400,000 households every year.
3 out of 38 turbines also have the world’s first recyclable rotor blades. These can be recycled at the end of their life. Due to a new type of resin, the materials can be also separated from each other. Other notable innovations include special steel collars for some of the foundations, based on an RWE patent, and a concrete ring that can expand in the seabed. The idea is to secure a stable connection between the seabed and the piles to provision for the usage of shorter piles in the future.
Kaskasi, part of the Heligoland cluster, joins Amrumbank and Nordsee Ost, set for operation by spring 2023. RWE’s portfolio also includes Nordsee One, Alpha Ventus 1 and 2, and Arkona wind farms, totaling 1.2 GW in Germany. Expanding offshore wind energy, RWE is developing a North Sea cluster near Juist, with up to 1.6 GW capacity across four sites, slated for operation by 2027 and 2029.
