Minister for Energy Dan van Holst Pellekaan has welcomed an announcement from Nexif Energy.
The renewable energy company is on track to deliver an additional 240 MW of generation capacity into South Australia's electricity market.
This follows the beginning of construction of 86 MV of wind turbines at Lincoln Gap and the relocation of 154 MV of fast start generators to Snapper Point at Outer Harbor.
The projects will support 110 jobs expanding the wind farm at Lincoln Gap and up to 70 jobs in Adelaide for the relocation of the generators.
Minister van Holst Pellekaan said the announcement of the projects are "further good news for South Australian electricity consumers".
"The Marshall Liberal government's energy plan is delivering great results for South Australian households and business, and providing jobs and investment to help our economic recovery," he said.
"The Marshall government has turned the tide on Labor's legacy of sky-high electricity prices and has stabilised the grid whilst lowering the cost of electricity and emissions.
"South Australian now has cheaper wholesale electricity than both Victoria or New South Wales for the first time in seven years.
"Nexif's conversion Labor's diesel generators to gas and the transition from back-up only generators to market assets available every day of the year will help deliver cheaper, cleaner electricity to South Australians.
"It is also delivering significant savings to South Australians taxpayers who were picking up the cost for the generators to sit idle after the former Labor Government spent $600 million acquiring them."
Minister van Holst Pellekaan said that when completed late next year, the 86 MV of wind power delivered by stage two of Lincoln Gap along with Nexif's battery will add depth to the regions renewable energy assets.
"These are in addition to Lincoln Gap existing 126MW of wind generation,"
"Nexif has indicated that the delivery of Project EnergyConnect between SA and NSW will make it easier to consider the third stage of Lincoln Gap, a further 252MW expansion, in coming months.
"Matching the capacity of the gas turbines at Snapper Point with the wind farm and battery at Lincoln Gap is an important step in the transformation to a low-cost, low emission electricity system in South Australia."
AGL's big battery plan
The announcement follows "hot on the heel" of AGL's plan for another big battery at Torrens Island.
Minister van Holst Pellekaan said the investment would be the first big battery in the Adelaide region and would take the state's total to five.
"This investment will help achieve our goal of net-100 per cent renewable energy," he said.
"Power generation at Torrens Island, including AGL's brand new fast start generator, plays a significant role in South Australia and this announcement by AGL is a welcome show of confidence in the state government's energy solution.
"As Torrens Island's older generators retire over coming years, this battery would help meet peak demand and help fill in the gaps between wind and solar generation."
Minister van Holst Pellekaan said the location of the battery will help ensure the ongoing stability of the state's power system.
"This would make use of the significant infrastructure at Torrens Island and utilise it for battery storage," he said.
"Another big battery will help address the legacy of power security issues that we inherited from Labor.
"We welcome AGL's vote of confidence in South Australia."