The world's second largest wind market saw its operating wind capacity increase by only 0.3% to 63.7GW between the start of the year and the end of November.
According to data from Windpower Monthly's Windicator Global Index, around 22GW of new capacity has been connected to the grid this year.
As continued policy uncertainty holds back development, data shows most US states failing to switch on any new wind farms.
In 2012, the country added a record-breaking 13.1GW to its installed wind capacity as developers rushed to get wind farms operating before the production tax credit (PTC) was expected to run out at the year's end.
Despite the fact that the PTC is once again set to expire at the end of the year following a 12-month extension, and a stay of execution looking unlikely this time, a similar surge has not occurred.
Significantly, the difference this time is that projects only need to have started construction or have met a capital spend threshold to qualify, removing the urgency to get projects operating.
