Plans to electrify the Gawler train line in Adelaide are back on the rails, but only as far as Salisbury.
The South Australian Government said it had revised the $152 million project and planned to save $20 million by using power from an augmented substation at Kilburn.
Transport Minister Tom Koutsantonis, said re-scoping the project had freed up money for the electrification work.
"They've been able now to augment our substation. To build a contingency rather than building a stand-alone substation, we're able to augment one at Kilburn which will give us the capacity to run trains, if we want, to Elizabeth," he said.
The electrification plan for the Gawler line was suspended last year due to budget concerns.
Premier Jay Weatherill said he now hoped electric trains would operate as far as Salisbury from 2016.
Diesel train services will still run from the city to serve the stations between Salisbury and Gawler