SA Power Networks runs the electricity distribution network of South Australia, over 95,000 km of lines reaching almost the whole state. It carries power but does not sell it: customers pay a retailer. Known as ETSA Utilities until 2012, it is 51% owned by CKI and Power Assets.

Electricity network
- Activities
- Distribution
- Customers
- 950,000+· homes and businesses, 2025-26
- Smart meters
- 56.2%· homes, June 2025, fitted by retailers
- Outage time
- 158.4 min· SAIDI 2025-26, excl. major event days
- Outages
- 1.12· SAIFI per customer, 2025-26
- Network length
- 95,000+ km· route length, 2025-26
- Coverage
- South Australia
- Adelaide
- Adelaide Hills
- Barossa
- Fleurieu Peninsula
- Riverland
- Eyre Peninsula
- Kangaroo Island
- South East
More than 178,000 km² of network area. Reliability figures exclude interruptions that start on major event days.