The investment group Zephyr and Deutsche Windtechnik have signed an agreement covering the maintenance of 61 Siemens type SWT 2.3 wind turbines.

The agreement covers full maintenance, including selected large components, for a period of five years commencing in June this year. The 61 turbines are located at the Causeymire and Farr wind farms in the north of Scotland. Both wind farms will be serviced from stations located nearby.