The government contracts will provide a big boost to renewable power in the South West but there is debate over how much the projects will help to replace coal-fired power.
Global companies Metso and Weir Minerals and Perth firm Camco Engineering are leading a flurry of developments that will bring new jobs to Karratha and Port Hedland.
Efforts to revive manufacturing in WA have been boosted by a $150 million deal between Gemco Rail and Rio Tinto to build 100 iron ore wagons and certain components locally.