Frank Calabria, the CEO of Australia's biggest retailer, discusses plans for the country's biggest wind farm, its biggest battery and the biggest coal generator. Plus: News of the week including EPBC ...

Construction has begun on four key electricity transmission sites for the largest investment in state's electricity grid in more than a decade.

"We are changing the way we power our mines." Fortescue marks arrival of battery units at North Star site and reveals plans for another big battery in push for real zero.

Plans for Australia's biggest solar-battery hybrid project have been adjusted to include a near doubling of battery capacity and a pared back solar footprint.

Snowy signs its second big battery deal in months, this time next to country's biggest wind farm, which is also a customer. Both will be online before Snowy 2.0.

Australia's most advanced renewable grid is also its most secure, but other states have to scramble, particularly NSW which is facing an imminent "no coal" scenario.

Origin says tenders are out for the turbine supply and balance of plant contracts for Australia's biggest wind project, likely to cost around $5 billion.