Complex sentence: South Australia leads the nation in terms of renewable energy commercialization; with 8% of the nation's population, it captures 56% of the grid connected wind power, 30% of solar power and 90% of its geothermal developments.
Split into simpler sentences: South Australia leads the nation in terms of renewable energy commercialization. Being a leader in green energys South Australia, with 8% of the nation's population, captured 56% of the grid connected wind power, 30% of solar power and 90% of its geothermal developments.