Project Green District Energy Feasibility Study - Partners in Project ...

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TRCA Pearson Eco-Business Zone District Energy Feasibility Study 10 April 2012 5.5 Environmental Analysis The greenhouse gas emission reductions as a result of generating heat for the designated Phase 1 buildings in more efficient boilers by the DES is estimated to be 2,300 tonnes per year without CHP and 3,600 tonnes per year with CHP, assuming 2,200 run hours per year for the CHP Facility. The reduction achievable with CHP would be higher in the event market conditions allow for more run hours. The estimates of greenhouse gas emissions with CHP allow nothing for possible displacement of higher emitting central electricity generating technologies. The estimate simply assumes that a mix of generating technologies would be displaced having approximately equivalent greenhouse gas emissions per unit of electricity delivered to the same point on the distribution system (taking into account losses) as the CHP Facility. This is an imprecise assumption, and possibly conservative; a different protocol for this calculation could be used, but its validity would be questionable due to a fundamental lack of empirical data. This protocol is used in view of uncertainties created by the evolution of the electricity supply mix, e.g. planned shut-down of coal-fired generating stations in Ontario. Whereas in previous years the percentage of hours that coal-fired generating stations acted as the marginal resource could be gauged from reports of the OEB Market Surveillance Panel this source of information will no longer be directly useful in that way. It is believed that grid electricity will long continue to be based on coal at the margin due to the interconnection of Ontario with neighbouring States. However, as yet it is not obvious how this could be quantified for the purpose of greenhouse gas reduction calculations. 6 Ownership and Operational Structure 6.1 Possible Ownership Models for DES Development in Pearson Area This section discusses characteristics of possible ownership models for development of a DES in the Pearson Eco-Business Zone: Precedents and lessons from recent Canadian experience The potential role of the municipalities The potential role of the GTAA The potential role of Enbridge There are likely other DE opportunities in the Pearson Eco-Business Zone, whose chances for serious consideration would be improved if an initial DES could be successfully developed in the area under consideration in this study. The comments in this report are intended, in principle, to apply to any possible scenarios regarding these other opportunities: A single DES utility in all locations One DES utility for some of the sites and separate entities for others Separate DE utilities for all sites 31
TRCA Pearson Eco-Business Zone District Energy Feasibility Study 10 April 2012 6.2 Precedents and Lessons from Recent Canadian Experience Appendix J summarizes research into the Canadian experience of DES. The research shows that municipalities have played a key role in all utility DES started in Canada over the past two decades, including total or majority ownership in most. There are several precedents for a separate DES corporation that could potentially be owned by the City of Mississauga, the Region of Peel or the City of Toronto, possibly with a minority operating partner and with funding assistance from senior levels of government. Since the study area straddles Mississauga and Toronto, perhaps a partnership of the two cities would be appropriate, or the Region of Peel and Toronto. Consultations should also be held with Enersource Hydro Mississauga and Enbridge. It is less likely, although possible, that other parties could play a larger role in developing DE in the Pearson Area. Regardless of which party eventually takes the lead role in developing the DES, further progress in project definition will be required and Partners in Project Green may be the most suitable vehicle to manage that work on behalf of the owner (but it will be important for customer confidence that there is an owner!). The most important step would be to hold further consultations with potential customers and with land owners of potential new development sites and with the local utilities. These would all be stakeholders, even if not owners. The possible involvement of local DES operators (Enwave, Corix or Markham District Energy) may also be explored. Leadership by a local champion will be necessary to launch the DES; interest from a broader range of potential participants will tend to increase as each project becomes well defined and especially following commencement of operation. 6.3 Potential Role of Municipalities Regardless of ownership involvement, the Municipalities would have an important role in planning and approvals for DE. For effective implementation the cities and Region must assist in the coordination of the underground piping distribution system with other infrastructure. The City will also have input on the site plan for the Energy Centre. It may also be of mutual benefit for the DES to collaborate on fuel procurement with the cities, Region and GTAA. The location of the Energy Centres will be key decisions that the Municipalities can control through planning approvals. Distribution pipe should be run mainly in the Municipal right of way and meet Municipal requirements in coordination with other infrastructure. Even the energy transfer stations in buildings would be a point of interest for Municipal building permit approvals as Municipal staff must be satisfied with the heat sources for buildings. In fact, it is likely that development of a true DE utility will need significant leadership from Municipalities, which may involve taking an ownership position, especially in the early stages. 6.3.1 Recommended Involvement of Municipalities Recommended involvement of the municipalities may include: 1) Initiation Incorporation of the DE utility to create an identifiable entity that prospective customers can recognize as their future energy supplier Develop a detailed business plan to support procurement of private partners 32
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Project: Pearson Eco Business Zone
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