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Interruptible Load Services in Deregulated Power Markets

By Le Anh Tuan, Le Anh Tuan and Chalmers Bibliotek Reproservice


iii Since the nineties decade, many electric utilities world-wide have been restructuring their systems from vertically integrated functioning to deregulated open-market ones. In the erstwhile vertically integrated utilities, the system operator sought to maximize the social welfare with distributional equity (meeting the load at all time) as the main criteria, for the system as a whole. The operating paradigm was based on achieving the system solution while meeting reliability and security margins. This often led to investment in such generating capacity that operated at very low load factors. Decommissioning of generating capacity, particularly those operating at low load factors, was thus an expected outcome when such vertically integrated utilities moved over to deregulated market operations. The erstwhile objective of maximizing social welfare with distributional equity was then replaced by a profit-maximizing objective, which was nothing but maximizing social welfare with efficiency as the main criteria for the generating companies. As a consequence, power producers are no longe

Year: 2011
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