Swedish renewable energy developer OX2 has applied to build a 5.5GW wind farm, the world’s largest single such development, between the islands of Gotland and Öland in the Baltic Sea.

Danish utility Ørsted has teamed up with the World Wide Fund for Nature (WWF) to test the effect of 3D-printed reefs on marine ecosystems in the Kattegat strait between Denmark and Sweden.

Rotterdam-headquartered marine contractor Van Oord and Japanese construction giant Kajima have been selected as the preferred “balance of plant” contractors for three offshore wind projects in Japan.