Renewables hosting capacity of existing Western Cape grid could be doubled with 10% curtailment

A preliminary analysis by two leading European transmission system operators (TSOs) shows that the capacity of the existing Western Cape grid alone to host variable renewable generators could be doubled under a scenario where no more than 10% curtailment is implemented. Curtailment involves the active reduction of output from wind and solar plants in response to system security needs or temporary transmission capacity constraints and is widely used by system operators to facilitate the introduction of renewable generators in a context of grid constraints.