The 20% drop on the previous year reflects the second year of slowing growth in an industry that had experienced breakneck expansion since 2005, doubling in size for three consecutive years from 2006 until China became the world’s largest wind market.

In 2011 however, the National Energy Administration (NEA) introduced tougher approval procedures for wind farms, which have been “very effective” in slowing new installations, says Demi Zhu, analyst at Bloomberg New Energy Finance.

Tighter