Asian energy players take second shot at building world’s biggest green energy hub in WA We’re sorry, this service is currently unavailable. Please try again later. Dismiss Normal text size Advertisement Two energy companies behind a failed green energy hub in the Pilbara are having a second crack at building the world’s biggest green energy project in WA, this time in the state’s south and Goldfields regions. The Western Green Energy Hub would comprise of wind and solar power over 15,000 square kilometres producing 50 gigawatts of hybrid wind and solar power. The project would include a huge solar array and windfarm.