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U.S. Department of Energy
Office of Scientific and Technical Information

Description of district heating: history and current status

Conference ·
OSTI ID:6271905
District heating is defined as the distribution of thermal energy from a central source for residential and commercial space and hot-water heating. The central source can be either a boiler-only unit or a cogenation power plant that produces both electricity and thermal energy. The most-significant advantage of the cogeneration plant is its greater overall energy-utilization efficiency. In addition, district-heating systems can utilize coal or nuclear fuel as an energy source and thus substitute for more-limited resources such as oil and natural gas. This could lessen our requirement for imported oil, thereby reducing an already serious political as well as economic balance of payments problem. As far as the consumer is concerned, district heating has the potential to provide thermal energy at competitive rates with reasonably long-term price stability. The potential exists to significantly increase the implementation of district heating in the U.S. compared to the present market. This is especially true in urban areas with high population densities and large space heating demands. Many European countries already have large successful not-water district-heating systems. In order for the U.S. to follow suit, it is necessary to determine the economic feasibility of district heating. This requires consideration of many factors, such as climate, thermal loads, building types, energy sources, and environmental considerations among others. A recent analysis for the cities of Minneapolis and St. Paul clearly shows the economic viability of district heating for that area.
Research Organization:
Oak Ridge National Lab., TN (USA); Department of Energy, Washington, DC (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6271905
Report Number(s):
CONF-790401-1
Country of Publication:
United States
Language:
English