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Technical feasibility and economics of retrofitting an existing nuclear power plant to cogeneration for hot water district heating

Technical Report ·
DOI:https://doi.org/10.2172/7031554· OSTI ID:7031554
This report gives the results of a study of the hypothetical conversion of the Prairie Island Nuclear Plant of the Northern States Power Company to cogeneration operation to supply a future hot water district heating system load in the Twin Cities of Minneapolis-St. Paul. The conceptual design of the nuclear turbine retrofitted for cogeneration and of a hot water transmission system has been performed, and the capital investment and annual owning and operating costs have been estimated for thermal energy capacities of 600 and 1200 MW(t). Unit costs of thermal energy (in mid-1982 dollars/million Btu) have been estimated for cogenerated hot water at the plant gate and also for the most economic transmission system from Prairie Island to the Twin Cities. The economic results from the analysis of the Prairie Island plant and transmission route have been generalized for other transmission distances in other locations.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
7031554
Report Number(s):
ORNL/TM-8778; ON: DE84014464
Country of Publication:
United States
Language:
English