Live mix › Data › September 2022
South Africa's electricity mix in September 2022
In September 2022 South Africa's grid generated 17 685.0 GWh, of which coal supplied 77.7%. Demand averaged 26 039 MW and peaked at 31 983 MW on 14 September 2022.
Where the electricity came from
| Source | GWh | Share |
|---|---|---|
| Coal | 13 736.2 | 77.7% |
| Imports | 853.0 | 4.8% |
| Wind | 830.3 | 4.7% |
| Nuclear | 794.7 | 4.5% |
| Diesel peakers | 488.8 | 2.8% |
| Solar PV | 402.4 | 2.3% |
| Pumped storage | 368.4 | 2.1% |
| Concentrated solar | 121.1 | 0.7% |
| Hydro | 64.2 | 0.4% |
| Other renewables | 25.8 | 0.1% |
| Gas | 0.0 | 0.0% |
| Total supply | 17 685.0 | 100% |
Load shedding in September 2022
Eskom shed 1 543 GWh of demand across 570 hours, affecting 25 of the 30 days in the month. The heaviest single day was 19 September 2022, when 103.2 GWh was shed. Separately, contracted industrial customers on interruptible supply were curtailed by 7.6 GWh. That is demand management, not load shedding.
How this month compared
Carbon intensity averaged 830 grams of CO₂ per kilowatt-hour, against a world average of 458 g/kWh in 2025 and an Africa average of about 530 g/kWh. Renewables (wind, solar PV, CSP and other renewables reporting to Eskom) supplied 7.7% of generation.
Figures are calculated from Eskom's published hourly data. Rooftop solar sits behind the meter and is not included.