The CRU has published the RESS 1 Ex-Post Interim Decision. This document is relevant to all RESS suppliers making Ex-post submissions to the CRU for the 2023/24 PSO Period. The RESS 1 Ex-post decision paper presents the CRU’s decisions on the calculation of ex post payments under the Renewable Electricity Support Scheme (RESS 1) for PSO Year 2021/22.