Approval of Goldwind's 148.5 megawatt Cattle Hill Wind Farm in the Central Highlands led to the target being reached on August 30, the Clean Energy Regulator said.

Federal Energy Minister Angus Taylor said: "In 2018, Australia led the world in clean energy investment, with more than double the per capita investment of countries like France, Germany and the UK.

"With the RET set to be exceeded, investment is not slowing down.

"Our challenge is to integrate this investment in a way that delivers an affordable and reliable system.

"Wind and solar need to be backed up to meet peak demand, which is why the government has invested $1.43 billion in reliable generation and storage, supporting a high-tech expansion of the Snowy Hydro scheme and the development of Marinus Link, the second Bass Strait interconnector needed to turn Tasmania's Battery of the Nation vision into reality."

State Energy Minister Guy Barnett said Tasmania was leading the nation in renewable energy development.

"We can be proud that it was Tasmania's Cattle Hill Wind Farm that saw the milestone surpassed," he said.

"Not only is the nation ahead of target, we are one step away from reaching our Tasmania-first target of 100 per cent self-sufficiency in renewables by 2022, with Tasmania already at 95.9 per cent according to the Clean Energy Australia 2019 report."

The regulator said 6400 megawatts of large-scale renewable capacity had to be built between 2017 and 2019 to generate enough energy to reach the target.

It said that was met ahead of schedule on August 30 when four large wind and solar power stations were approved, including Cattle Hill.

Goldwind expects Cattle Hill construction to be complete by the end of 2019.