1. An Overview of Considerations of District Energy in Montpelier

2. Project History Early 1990s – Montpelier Community Energy System first conceived and discussed with City Council. Late 1990s – Community Renewable Energy (CORE) ; a collaboration of Chittenden County Regional Planning Commission, Central Vermont Regional Planning Commission and others work to develop and advance the concept of district energy in Vermont. 2000/2001 -- CORE worked with City of Montpelier to collect energy use information on buildings located in the Montpelier downtown area. A preliminary study of a district energy system was completed by CANMET. The report found that community scale project was feasible. …

3. Project History, cont. Also in 2000, the Montpelier City/State Commission completed the Capital District Master Plan – district energy was one of ten key elements identified in the plan. 2002 to 2004 – Three studies were carried out with funding from the USDA Forest Service and the Department of Energy. 2003 – City of Montpelier votes a $250,000 bond for district energy. 2005 to 2006 State of Vermont completes engineering studies of the existing boiler plant. The first study analyzed the available capacity; second study preliminary design and cost for modernizing and expanding. 2006 – BERC with DOE funding updates the Montpelier downtown building/energy survey of 2000. …

4. Project History, cont. 2008 – BERC updates CANMET study, considers ‘Montpelier Only’ design. 2010 – City of Montpelier awarded $8Million DOE Community Renewable Energy grant.

5. Use community-scale technology Replace fossil fuels with local biomass*, for heat and power Use efficient, clean technology Strict requirement for sustainable fuels What have been the goals of these studies? To evaluate the feasibility of

6. Keeps local energy dollars circulating in the community Displaces expensive fossil fuels and increases energy security Scaled to link community energy economy with local resources Uses available local available renewable fuel at high efficiency Uses manageable volumes of biomass for each project Supports forest-products industry and creates jobs What Are the Benefits of Biomass District Energy?

7. Downtown Buildings Heating Systems and Fuel Types

8. What is District Energy?

9. The Heat Plant

11. The Pipe

14. Heat Exchanger

15. CANMET Study, 2001 District Energy Pipe Routing

16. Veolia Scoping Report, 12/1/10 District Energy Pipe Routing

17. Veolia Scoping Report, 12/1/10 District Energy Pipe Routing

18. RFP ‘Base Bid’ Routing

19. Conceptual Future Expansions

20. ~80 Tons NO x, SO 2, PM, CO, HAPs ~73 Tons NO x, SO 2, PM, CO, HAPs 4 Tons NO x, SO 2, PM, CO, HAPs 4 Tons NO x, SO 2, PM, CO, HAPs ‘Phase 1’ Air Emissions - 7 Tons - 4 Tons Total Emissions Reduction 11 Tons

21. Other topics Difference between District and Telecom – This is an existing plant and service – Competitor is declining, not increasing District itself vs. projects in the district – Downtown Energy Plant – Energy Efficiency and Renewable Energy Improvements New Technologies/Biomass Electric vs. Heat