Business Unity South Africa (Busa) will approach the Department of Mineral Resources and Energy (DMRE) to secure the technoeconomic information that has been used to inform the assumptions contained in the draft Integrated Resource Plan (IRP), which was released for public comment on January 4 absent an associated data book. The head of Busa’s energy and environment desk, Happy Khambule, tells Engineering News that the document is “thin on detail” and that, without securing the additional data, it will be impossible to assess its credibility, including the significant changes to the generation technology allocations for the period from 2024 to 2030 when compared with the prevailing IRP 2019.