Synergy plans $4.5b wind, solar and battery farm in WA's Wheatbelt
The state-owned utility needs to replace the generation capacity it will lose by closing down all its coal-fired power stations over the next four years.
Bauxite is strip-mined in WA's jarrah forest by Alcoa and South32 to feed three alumina refineries that produce the material for aluminium smelters.
Roger Cook granting Alcoa greater access to mine near Perth's dams risks could cost taxpayers billions of dollars and result in water restrictions
Within weeks, the US miner will reveal for public comment plans to strip mine 75 square kilometres of jarrah forest.
The cost of managing water where it stores 140 million tonnes of caustic red mud has doubled.
Alcoa has made last minute changes to its planned expansion of mining in WA's jarrah forest and wants to reenter a previously mined area, potentially triggering a new major federal environmental assessment.
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