Ignacio Galan, who has spent the last 22 years transforming a sleepy Spanish coal-burning utility into a global renewables superpower, has his eyes firmly set on Australia’s post-carbon transition.

In Canberra on Wednesday for talks with Prime Minister Anthony Albanese and Energy Minister Chris Bowen, the green energy heavy hitter said his firm, Iberdrola, plans to more than double, by up to $4.4 billion, its Australian investments in wind, solar and transmission through 2025.