A re-optimised energy mix scenario, with 72% of renewables, could cost R90bn less than either of the IRP 2016’s base case and carbon scenarios.

This is according to research presented by the CSIR’s centre manager for energy, Dr Tobias Bischof-Niemz, who was speaking at a public forum on the Department of Energy’s (DoE) Independent Resource Plan (IRP) held in Boksburg last week.