Activist investment vehicle Ananym Capital has built a significant stake in Siemens Energy and is now urging the company to focus on its lucrative gas turbine and power generation business and spin off the much weaker wind power segment. Citing unnamed sources and a letter sent by the activist investor to the board of the German power utility, the Financial Times said Ananym Capital was doubtful about the profitability prospects of wind power but the gas turbine business had a bright future ahead, thanks to the data center-driven surge in demand…