Under a $290 million partnership, TRUenergy and Solar Systems plans to build what they claim to be the world's largest and most efficient solar photovoltaic power station in northern Victoria.

Construction of the $420 million solar power station will begin in 2009 and once fully complete in 2013 will produce 154 megawatts of electricity, enough clean energy to power 45,000 homes.

In welcoming the joint venture yesterday, federal Minister for Climate Change and Water Penny Wong said the Australian Government would contribute up to $79.5 million towards the project, and the Victorian Government would contribute $50 million.

TRUenergy managing director Richard McIndoe said the partnership would allow Solar Systems to start development of further solar energy projects across Australia and Asia.

The government's renewable energy target has also encouraged Roaring 40s to revisit a plan to build a 129MW wind farm in Tasmania, after putting on hold in 2006.

Roaring 40s said construction would begin on the 40-50 turbine Musselroe wind farm, 100km northeast of Launceston, within months.

The project is expected to supply electricity to about 55,000 homes and reduce greenhouse gas emissions by around 300,000 tonnes each year.

Managing director Mark Kelleher told ABC Online the new federal government policy pretty much assured that Musselroe would proceed.