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National Grid Repowering Projects

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POWER Engineers is providing Owner’s Engineering Services to National Grid (NG) for the repowering the E.F. Barrett and Port Jefferson generating stations on Long Island. Repowering technology selection studies included various options including a combination of new combined-cycle and simple-cycle configurations. Multiple factors including client preferences, three separate transmission system upgrade cases wi th different off take limitations and the evaluation “F”, “G” and “H” class combustion turbine technologies from GE, Alstom, MHI, and Siemens. Full performance data, lifetime O&M cost and construction cost estimates were considered to develop a recommended “best option” for repowering at each site.