The project SpannEnD II (2022-2026) has been supported by the Bundesgesellschaft für Endlagerung (BGE; Federal Company for Radioactive Waste Disposal).

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The project SpannEnD (2018-2022) was supported by the Federal Ministry for Economic Affairs and Energy (BMWi) (grant no. 02E11637A, 02E11637B and 02E11637C). The project support was carried out by the Projekträger Karlsruhe (PTKA).