As US wind developers look to make maximum use of the fading production tax credit (PTC), one of the biggest questions has been whether there would be enough off-takers for all their proposed projects.

Any such concerns seem increasingly quaint. This year is proving to be a blowout for US wind power-purchase agreements (PPAs), with more than 5GW signed in the first half — a 44% increase compared to the same period in 2017 — the highest level since the American Wind Energy Association (AWEA) began tracking PPA activity.