Live mix › Data › October 2025
South Africa's electricity mix in October 2025
In October 2025 South Africa's grid generated 17 555.6 GWh, of which coal supplied 81.2%. Demand averaged 22 927 MW and peaked at 29 192 MW on 20 October 2025.
Where the electricity came from
| Source | GWh | Share |
|---|---|---|
| Coal | 14 259.2 | 81.2% |
| Wind | 1 051.9 | 6.0% |
| Nuclear | 698.2 | 4.0% |
| Solar PV | 497.4 | 2.8% |
| Pumped storage | 381.5 | 2.2% |
| Imports | 303.6 | 1.7% |
| Concentrated solar | 170.7 | 1.0% |
| Diesel peakers | 93.5 | 0.5% |
| Hydro | 70.9 | 0.4% |
| Other renewables | 28.6 | 0.2% |
| Total supply | 17 555.6 | 100% |
Load shedding in October 2025
There was no load shedding in October 2025. Separately, contracted industrial customers on interruptible supply were curtailed by 6.2 GWh. That is demand management, not load shedding.
How this month compared
Carbon intensity averaged 850 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 9.9% of generation.
Figures are calculated from Eskom's published hourly data. Rooftop solar sits behind the meter and is not included.