Question

To ask the Secretary of State for Energy and Climate Change, if he will estimate the additional cost to energy bill payers of the feed-in tariff scheme arising from the practice of de-rating wind turbines.

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.