Some of the region's councils are opting to replace street lights with efficient LEDs (light-emitting diode) and enter into new contracts with SA Power Networks (SAPN) after the Local Government Association of South Australia negotiated a better deal with the electricity distributor.
LGA president and Tumby Bay mayor Sam Telfer said the contracts would start in January 2020, covering more than 90 per cent of the state's councils.
"Electricity is a major cost for councils, but working together and aggregating our spend allows us to lock in massive savings for our communities," he said.
"Over the past six months LGA Procurement has negotiated new electricity contracts on behalf of the sector that will deliver around $14 million in savings to participating councils.
"This is an outstanding result that will drive downward pressure on rates."
The Cleve District Council last month moved to add the cost of funding the transition to LED street lighting to the 2019/20 budget, which will be about $100,000.
The council will now arrange the transition at the earliest opportunity.