Question

To ask the Secretary of State for Energy and Climate Change, what progress his Department has made on its investigation into the practice of de-rating wind turbines for the purposes of the feed-in tariff; and when he expects to publish the conclusions of that investigation.

Work to investigate the extent and impact of de-rating of wind turbines is underway. This includes work to gather project-cost data and close involvement with the industry to build a robust evidence base. Once the investigation has concluded, its findings will support decisions taken as part of the periodic FITs review in the summer.