The reason,says market researcher NPD Solarbuzz, is that utility-scale developers aregrowing increasingly mindful of the planned expiration of the Investment TaxCredit at the end of 2016.

There arestill a number of massive PV projects in late development or under constructionin the US, including Sempra’s 345MW Copper Mountain 3 and the Google-backed266MW Mount Signal.

Arizona’sAgua Caliente array, owned by NRG Energy and MidAmerican, and built by FirstSolar, is the world’s largest operational PV array.

But