South Africa's electricity mix in July 2022
In July 2022 South Africa's grid generated 19 502.0 GWh, of which coal supplied 82.0%. Demand averaged 26 957 MW and peaked at 33 484 MW on 14 July 2022.
Where the electricity came from
| Source | GWh | Share |
|---|---|---|
| Coal | 15 994.6 | 82.0% |
| Wind | 938.2 | 4.8% |
| Imports | 824.0 | 4.2% |
| Nuclear | 663.3 | 3.4% |
| Pumped storage | 333.7 | 1.7% |
| Solar PV | 329.1 | 1.7% |
| Diesel peakers | 259.1 | 1.3% |
| Concentrated solar | 75.2 | 0.4% |
| Hydro | 71.2 | 0.4% |
| Other renewables | 13.5 | 0.1% |
| Gas | 0.2 | 0.0% |
| Total supply | 19 502.0 | 100% |
Load shedding in July 2022
Eskom shed 1 003 GWh of demand across 412 hours, affecting 22 of the 31 days in the month. The heaviest single day was 4 July 2022, when 84.8 GWh was shed. Separately, contracted industrial customers on interruptible supply were curtailed by 6.9 GWh. That is demand management, not load shedding.
How this month compared
Carbon intensity averaged 864 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 6.9% of generation.
Figures are calculated from Eskom's published hourly data. Rooftop solar sits behind the meter and is not included.