The potential demise of the Renewable Energy Tax (RET) is already taking its toll on Australia's clean energy sector, with major projects annulled due to developers' concerns about their economic viability in the absence of government-backed incentives.

Following years of preparatory work, Silex Systems has withdrawn plans to build what would have been Australia’s biggest solar power plant, with CEO Michael Goldsworthy citing the possible cancellation of RET as one of two key reasons behind the company’s decision. “Low wholesale electricity prices and the uncertainty surrounding the Renewable…