Greenstone power outage: City Power tests for cable fault
City Power said at 15:39 SAST on Monday, 9 November, that its test team was on site helping to locate a cable fault affecting customers in Greenstone, Johannesburg. The utility had identified Greenstone Hill Switching Station in an earlier notice. It gave no restoration time.

Status of this incident
Power outage confirmed
Last known status: confirmed by the source · City Power reported testing at 15:39 SAST on 9 November and gave no restoration time.
Source moment: Nov 9, 2026, 01:39 PM UTC (03:39 PM local time)
In 20 seconds
City Power said the outage was reported on 9 November.
The earlier notice said four load centres would stay off until repairs were completed.
By the afternoon update, the test team was on site looking for the fault.
What City Power reported
City Power’s 12:18 SAST notice identified a cable fault at Greenstone Hill Switching Station. It said four load centres would remain off until repairs were complete. The utility did not give a customer total or an address list, so the number of load centres does not establish how many homes or businesses lost power.
What the sources tell us, and what they do not
- Area named by City Power
- Greenstone, Johannesburg
- Switching station
- Greenstone Hill Switching Station
- Latest reported step
- Test team on site to locate the cable fault
What the afternoon update confirmed
At 15:39 SAST, the utility reported that its test branch was helping to locate the fault. It did not confirm when the cable would be repaired or when supply would return. The notices also leave open when customers first lost power and what caused the cable fault.
Preparing for another power cut
If you rely on a battery during power cuts, list the devices you need first. The runtime calculator can help estimate how long a battery might run those devices. The internet backup planner can help you work out the power needs of a router or modem.