District heating/cogeneration application studies for the Minneapolis-St. Paul area. Market assessment and economic analysis of the St. Paul district heating system

Technical Report · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6387579

Nyman, H O; Kolb, J O; Krautbauer, M

The goals of the St. Paul District Heating Demonstration Project are: (1) to assess the detailed economic feasibility of a cogeneration, hot water district heating system servicing the commercial core area of St. Paul, Minnesota, and (2) to develop an implementation plan for financing and construction of the first phase of the system over a four- to five-year time span. The results of the economic feasibility assessment and the implementation plan are presented. The economic assessment is based on engineering studies of the detailed heat load and market definition, building conversion methods and costs, St. Paul area heat sources, and the conceptual design of the piping distribution system. Extensive use of Swedish hot water district heating technology and experience with cogeneration heat sources is incorporated in the design to minimize capital and operating costs. The heat load survey determined a 300-MW(t) total heat load in the initial market area. The market is composed of over 300 buildings, including four major hospitals and the State Capitol complex. A significant fraction (50%) of the buildings have internal steam distribution systems, many of which are old and in need of repair. Building conversion studies disclosed a wide range of costs for upgrading and connection of a 250/sup 0/F hot water supply system. Costs were estimated for the piping systems, peaking heat sources, and building conversion from project studies. The results of the preliminary economic feasibility study established the business plan and key project requirements leading to the construction of a $44 million hot water district heating system in St. Paul.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6387579
• Report Number(s): ORNL/TM-6830/P10-Vol.1; ON: DE83008303
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290800 -- Energy Planning & Policy-- Heat Utilization-- (1980-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320603* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Public Utilities-- (1980-)
BUILDINGS
COGENERATION
DEUS
DISTRICT HEATING
ECONOMIC ANALYSIS
ECONOMICS
ENERGY SYSTEMS
FEDERAL REGION V
FINANCING
HEATING
HOT WATER
HYDROGEN COMPOUNDS
IMPLEMENTATION
MARKETING RESEARCH
MINNESOTA
MODIFICATIONS
NORTH AMERICA
OXYGEN COMPOUNDS
POWER GENERATION
STEAM GENERATION
STEAM SYSTEMS
USA
WATER