South Australian Treasurer Tom Koutsantonis has spent two days touring Tesla facilities in California ahead of Elon Musk's visit to Adelaide this week as part of the International Astronautical Congress.

The State Government announced a partnership with US company Tesla and entrepreneur Elon Musk to build a 100MW storage battery in the state's mid north earlier this year.

The battery is due to be in place by summer, and Mr Musk is expected to give an update on the project while in Adelaide later this week.

Mr Koutsantonis held a meeting on Thursday with Tesla executives at the company's Fremont factory, a former General Motors plant.

He then travelled to Nevada to tour the Gigafactory where elements of South Australia's big battery will be built.

"The management and staff have a real sense of excitement about our battery installation," Mr Koutsantonis said.

"South Australia is really at the cutting edge as we implement our energy plan to secure a cleaner, more affordable and more secure energy network."

Mr Koutsantonis also travelled to the United Kingdom where he toured a number of the Gupta Family Group's businesses.

The Gupta family owns GFG Alliance, which has bought the steelworks in Whyalla.

"It was fascinating to see the vertical integration of Sanjeev Gupta's businesses in the UK," Mr Koutsantonis said.

"From Formula One and A380 components to sheet steel rolling and biomass plant manufacturing, GFG and Simec have come a long way in the past 24 months."