In 2020, rolling outages in South Africa contributed to 2.3% of the decline in GDP; a loss of R75bn, and 450,000 jobs. In 2021 infrastructural uncertainty meant that the country could only produce 65% of its maximum energy generation capability; causing severe disruptions to the national power supply. This resulted in 560 hours of “load-shedding” in the first half of 2021.
Sources: one, two