The idea behind the PTC phase-out was to spark a near-term investment boom without simultaneously creating a demand cliff. Developers with advanced projects would rush to qualify for the full PTC in 2016, but earlier-stage projects would still be able to secure a substantial fraction of the PTC over the coming few years – or so the thinking went.

But major wind developers are now questioning whether many projects will get built based on reduced PTC levels after all, given the intensely competitive landscape in the US power sector today.

“Certainly