Northwold and Sundowner power outage: City Power reports cable theft
City Power attributed a trip on the Tourmaline distributor at Northriding 11 kV Substation in Johannesburg to cable theft. Its 09:09 South African Standard Time notice on 10 November said the power outage affected customers in Northwold and Sundowner. The utility gave no estimate for when electricity would return.
Status of this incident
Power outage confirmed
Last known status: confirmed by the source · City Power reported the Tourmaline trip on 10 November at 09:09 SAST. Restoration was unconfirmed.
Source moment: Nov 10, 2026, 07:09 AM UTC (09:09 AM local time)
In 20 seconds
City Power named Northwold and Sundowner in its Tourmaline notice.
An earlier Randburg notice listed four areas without identifying the circuit or cause.
The notice did not establish the exact start, number of customers affected or restoration time.
What City Power said about the Tourmaline trip
The utility identified the equipment that tripped and attributed the trip to cable theft. The notice named the two areas but did not list individual streets or give a customer count. It did not establish when the interruption began or confirm that a repair team had reached the site. The time of the notice is the time City Power posted the update.
What the sources tell us, and what they do not
- Areas named by City Power
- Northwold and Sundowner
- Latest operator update
- City Power attributed the Tourmaline trip to cable theft at 09:09 SAST on 10 November
- Restoration estimate
- City Power gave no estimate in its notice
How this differs from the earlier Randburg notice
City Power had already reported an unplanned interruption in Randpark Ridge, Northwold, Sundowner and Boskruin. That earlier notice did not identify the equipment or cause. Only Northwold and Sundowner were named in the later Tourmaline notice, so the available reports do not establish that the same cable theft caused interruptions in Randpark Ridge or Boskruin.
Where to check for a restoration update
City Power’s updates and fault reporting service are the places to check if an address is still without supply. If you are estimating how long a battery can run essentials, use our runtime calculator. Our internet backup planner can help you identify what your modem and router need to stay on.