The US wind supply chain will be under exceptional stress in the fourth quarter as developers frenetically push to complete what likely will be more than 6GW of new capacity qualified for 100% of the expiring production tax credit (PTC).

Installations could surpass 6.47GW in Q4 2016, the second-best performance after 8.38GW in 2012, with 5.94GW last year ranking third best historically for the period.