SA’s renewables production costs minimised at high penetration levels, NREL study shows Preliminary Findings of the South Africa Power System Capacity Expansion and Operational Model Study

A new independent study published by the National Renewable Energy Laboratory (NREL), in the US, concludes that significant production cost savings could be achieved if South Africa added between 60 GW and 100 GW of additional variable renewable energy (VRE) by 2035. The NREL study is a pure production cost analysis that does not interrogate the feasibility or cost of integrating the VRE. In other words, the result offers insight into the amount of money worth investing to integrate each renewable-energy level in order to save on total production cost.