Alcoa chief executive Bill Oplinger told Wall Street the US aluminium specialist could take strong action to boost profits from alumina, most of which it refines in Western Australia.
South West WA's power grid reached a record 91 per cent peak renewable energy share in December - driven by 1,225 MW of new battery storage - while wholesale power prices fell 13 per cent and carbon emissions dropped 15 per cent as coal and gas generation declined.
The green light for Black Mountain Energy comes just months after Federal experts said its environmental risk assessment was "limited and disjointed" and reached "largely unsupported" conclusions.
ENGIE is a French energy company that is partnering with Yara to produce green hydrogen to feed into the Pilbara Fertilisers ammonia plant on the Burrup Peninsula near Karratha. It operates wind and solar farms, gas-fired power stations and grid-scale batteries and retails electricity in the eastern states.
WA will be home to two of the largest green hydrogen electrolysers in the world to feed an ammonia plant and inject the clean fuel into the South West gas grid.
