SA Liberals have claimed victory after 16 years of Labor rule in South Australia.

Liberal leader Steven Marshall has declared a “new dawn” in the state, during a victory speech in Adelaide.

The shift is expected to be felt in the energy and environment sectors.

Liberal leader Steven Marshall promised before the election to put $200 milion into a fund for grid connections with other states, including a second interconnector to New South Wales.

The Liberals also pledged $100 million in support for 40,000 home battery storage systems.

Former Labor premier Jay Weatherill promised that if re-elected, his party would deliver $100 million in interest-free loans for 10,000 home battery or solar systems, $24 million in grants and loans for the Crystal Brook “hydrogen superhub”, and $32 million in loans and grants for a Tesla virtual power plant scheme involving 50,000 home battery storage systems.

A new 25 per cent energy storage target would have been backed by a $20 million subsidy.

The Liberals had earlier been forced to apologise over campaign statements on their energy plan.

The state’s Electoral Commissioner labelled the claims “inaccurate and misleading”.

The party had claimed in flyers and robo-calls that parts of its energy plan would save households more than $300 a year.

A day after announcing the policy last October, Steven Marshall conceded that $230 was a more accurate figure for the maximum saving for households.