For the first time, the Public Power Corporation (PPC) will replace two oil-powered production units with a new one using natural gas at Aliveri to produce 360-400 megawatts after yesterday’s approval by the PPC board. Separately, the PPC staff union has attacked Deputy Development Minister Giorgos Salagoudis for a recent warning of possible power shortages next year and urged him to release a relevant report by the Energy Planning Committee. The union also said it opposed the privatization of a third tranche of PPC shares. PPC is 51 percent government-owned.