“The turbines have 73.7m-long blades and feature 250m-high steel towers, among the tallest in the industry. They can also be operated either in a power optimised mode up to 4.2MW or a load optimised mode down to 3.6MW. The turbines have a low noise level of 104.9dB(A).”

–PowerTechnology, in a report detailing the 400MW Dumat Al Jandal wind farm started turbine, which began testing this week. It is located in the Al Jouf region of north-west Saudi Arabia, 900km from capital city Riyadh. The province lies in close proximity to the entrances of Al Sarhan Valley, the Arabian Peninsula, Iraq and Syria. [Power Technology]