Siemens, a German multinational conglomerate company, has announced that it is supplying two gas turbines and one steam turbine for the Holland Energy Park combined-cycle power plant , to be constructed in the city of Holland, Mich. The local municipal utility, Holland Board of Public Works, is replacing a coal-fired plant with the new fuel-efficient modern power plant, which will generate approximately 125 megawatts in the summer and 145 in the winter.