Following DOE's RFP for District Heating and Cooling Through Power Plant Retrofit, Detroit Edison and the City of Detroit decided to respond, even though it would mean redirection and a delay in their plan that was already under study. The analysis reported here proceeded in six steps. The first step was to identify the service area under the constraint that it be within the City of Detroit and in close proximity to the candidate plant. With the basic service area to be considered established, the load within the service area was defined for the five categories of end-users chosen: general residential, major residential, commercial, institutional, and industrial. Parallel to all tasks and continuing throughout the phase, a definition of institutional requirements - including regulatory, legal, and licensing aspects of a district heating and cooling project - was carried out to determine the ability of Detroit Edison to own and operate such a project and to define the limitations or problems that may be encountered in the project. The capacity of the retrofitted power plant to supply heating and cooling was determined as a basis for sizing the distribution systems and for determining which end-user loads could be served. The distribution …

An analysis was performed investigating the potential of retrofitting Detroit Edison's Conners Creek power plant to supply district heating and cooling to an area surrounding the plant and within the City of Detroit. A detailed analysis was made of the types and ages of the buildings in the service area as a basis for establishing loads. The analysis of the power plant established possible modifications to the turbines to serve the load in the area. Based upon the service area data and plant retrofit schemes, a distribution system was developed incrementally over a 20-y period. An economic analysis of the system was performed to provide cash flows and payback periods for a variety of energy costs, system costs, and escalation rates to determine the economic viability of the system analyzed. The legal and regulatory requirements required of the district heating and cooling system owner in Michigan were also analyzed to determine what conditions must be met to own and operate the system.

This appendix presents tabulated data used for evaluating the feasibility of retrofitting thermal power plants in the Detroit area so as to provide heat for a district heating system. (LCL)