Wind energy projects are being proposed around the world to help meet climate goals, but the largest maker of turbines is finding that supply chain issues and pandemic lockdowns are hampering wind farm construction and hurting financial results. “It is troubling and challenging out there,” Henrik Andersen, chief executive of the Danish company Vestas Wind Systems, said on a call with analysts on Wednesday. Mr. Andersen said the company had to recently navigate the disruption caused by the compulsory mass testing of 14 million residents in Tianjin, China, where Vestas…