Denmark-based offshore wind developer Ørsted has completed the sale of a 50% stake in the 900MW Borkum Riffgrund 3 offshore wind farm in Germany.The deal, with funds managed by Glennmontpartners, was first announced in October 2021. Ørsted at the time said that the agreement was the first farm-down to an institutional investor to be signed prior to taking the final investment decision on the project…