The US installed 836MW of wind energy in the first six months of 2014, according to a new report.

The American Wind Energy Association (AWEA) said 15 wind projects have been online since the start of the year, adding 217MW in the first quarter and 619MW in the second quarter.

Another 109 projects were underway by June, representing up to 14.6GW of extra capacity.

The report notes that leading brands like Google, Microsoft and IKEA have announced new contracts or investments for additional wind energy since April.

Tom Kiernan, CEO of the AWEA said: “Today’s great values on clean, low-cost wind power are encouraging utilities and major companies to sign more and more contracts for it. They show how successful the renewable energy tax credits have been in getting the private investment needed to build these new projects.”

However, installations lag behind historical trends as the industry is still tied to uncertainty on whether the nation’s production tax credit will be extended.