The Turnbull government's much-debated National Energy Guarantee will fail to lift energy investors' confidence even if gets approval and goes ahead, leading industrial analyst IBISWorld says.

This Canberra Times articles quotes ANU College of Law researcher Dr James Prest who says Australia may be at risk of failing its international obligations.

“By international comparison, Australia’s aim for renewable energy is clearly quite unambitious,” Dr Prest said.

“Our review of Renewable Energy Targets in all OECD countries shows only five of the 34 OECD countries have a lower target than Australia, and some of these have already high levels of renewable electricity production.”

Read the full Canberra Times article.