Greens Senator for Western Australia Scott Ludlam was in Collie today talking with locals about the Greens' plans for Collie as a renewable energy generation hub.

Senator Ludlam, who earlier this year released Energy 2029 - a costed, technical plan for how WA's main electricity grid could switch to 100% renewable energy generation - said Collie should be one of five regional Renewable Energy Zones as it had key attributes that made it the right place to generate renewable energy.

The Greens today launched a plan to address the affordable housing crisis by creating a new local prefabricated housing industry in WA's South West.

Greens Senator for Western Australia Scott Ludlam said the manufacture and installation of prefabricated housing made with local sustainable plantation timber will be a boost for local jobs, while delivering much-needed housing.

Senator Ludlam made the announcement today in Bunbury, home to WA's largest pine sawmill at Dardanup.