Live mix › Data › December 2022
South Africa's electricity mix in December 2022
In December 2022 South Africa's grid generated 16 845.7 GWh, of which coal supplied 72.9%. Demand averaged 24 673 MW and peaked at 30 016 MW on 8 December 2022.
Where the electricity came from
| Source | GWh | Share |
|---|---|---|
| Coal | 12 281.7 | 72.9% |
| Imports | 997.6 | 5.9% |
| Wind | 938.3 | 5.6% |
| Nuclear | 823.6 | 4.9% |
| Solar PV | 497.1 | 3.0% |
| Hydro | 411.7 | 2.4% |
| Diesel peakers | 352.8 | 2.1% |
| Pumped storage | 336.1 | 2.0% |
| Concentrated solar | 186.3 | 1.1% |
| Other renewables | 20.5 | 0.1% |
| Total supply | 16 845.7 | 100% |
Load shedding in December 2022
Eskom shed 1 951 GWh of demand across 698 hours, affecting 31 of the 31 days in the month. The heaviest single day was 8 December 2022, when 112.0 GWh was shed. Separately, contracted industrial customers on interruptible supply were curtailed by 4.9 GWh. That is demand management, not load shedding.
How this month compared
Carbon intensity averaged 775 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 9.6% of generation.
Figures are calculated from Eskom's published hourly data. Rooftop solar sits behind the meter and is not included.