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Re-Energizing Our Cities: From District to Specific - Integral Group

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Dave Ramslie and Gerry Faubert, Principals, Integral Group
Reenergizing our Cities! – Integrated District Scale Energy Planning
Investment in our buildings and infrastructure has never been more timely. Energy solutions that work for both new development and for the retention and re-imagining of our existing buildings are possible today. The scale and application of these solutions from grass roots community engagement programs, to retro-commissioning, big data and the development of large sale renewable energy solutions can work together to lower emissions and improve our collective quality of life. Using case studies such as the development of new district ambient loop in downtown Vancouver using existing fire protection infrastructure and the promotion of deep green retrofits in multi-unit residential buildings through the Condo Retrofit Assistance Financing Trial (CRAFT) Dave Ramslie and Gerry Faubert will examine how a variety of solutions deployed at the neighborhood level can be aligned to achieve significant community wide energy savings and economic revitalization.

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Re-Energizing Our Cities: From District to Specific - Integral Group

  1. 1. Re-Energizing our Cities From district to specific Dave Ramslie & Gerry Faubert Integral Group October 03, 2013
  2. 2. A Point in History…
  3. 3. High Performance Urban Buildings
  4. 4. Energy and GHG savings at scale        Fuel switch on existing systems New brownfield DE systems Near net-zero building Deep green retrofit LEED Gold Building Typical retrofit Retro-commissioning = 35-85,000 t = 7-15,000 t = 200t = 50-75t = 30-50t = 30-40t = 20-30t
  5. 5. Going District Scale How do we:  Build new cost effective systems?  Have competitive utility rates?  Connect existing loads?  With natural gas at an all time low?
  6. 6. Use Existing Infrastructure:
  7. 7. Conversion of DFPS to Ambient DES
  8. 8. Stage 1 – B&H Site Connected to ATDFPS ATDFPS       Convert DFPS into Ambient Temp DES or “ATDFPS” Build Central Plant on adjacent site Connect B&H to ATDFPS B&H peak heating demand 2.5MW ATDFPS intrinsic geoexchange heating capacity 1.6MW with heat pump Supplemental heating by condensing Nat. Gas boilers
  9. 9. “Ambient Loop” District Energy Concept     DFPS converted into “Ambient Temperature” (5 -15C) district energy system serving majority of Downtown New Energy Centre pump station converts existing stagnant DFPS loop into thermal distribution system Combined with distributed building level heat pump H&C plants Combined with distributed “low-grade” thermal energy sources
  10. 10. DFPS/Ambient Loop DES Concept Schematic DFPS / AMBIENT LOOP DES 600mm DIAMETER
  11. 11. Ambient Loop Demand & Temperature Profile  Net heat extraction/ heat rejection from/ into Ambient Loop at Phase 1 Ambient Loop temperature profile with 1.5 MW low-grade heat source  SHR @ 8C dT, 45 l/s or Ocean Loop @ 4C dT, 90 l/s 20 Ambient Loop Demand & Temperature Profile at Phase 1 18 4000 3000 16 2000 14 1000 12 Degrre C  10 0 8 -1000 6 -2000 4 -3000 2 0 Fri, 01/Jan -4000 Tue, 26/Jan Sat, Wed, Sun, 20/Feb 17/Mar 11/Apr Thu, 06/Ma y Mon, 31/Ma y Fri, 25/Jun Tue, 20/Jul Sat, Wed, Sun, Thu, Mon, Fri, 14/Aug 08/Sep 03/Oct 28/Oct 22/Nov 17/Dec
  12. 12. Performance Engineering – Canmet Lab@ MIP     Innovative Partnership Hybrid DES Geoexchange Solar Thermal & PV
  13. 13. Making These Systems Work Load Certainty Developer “Buy-In” Load Density District Energy Supportive Civic Government Supportive Policy Load Diversity Patient Capital
  14. 14. Policy Considerations       Mandatory Connection Areas? “DE Ready” requirements DE feasibility requirements DE “Franchise Areas” Low Carbon Bridging Strategies Green Building Policy
  15. 15. SEFC Neighbourhood Energy Utility   Mandatory Connection Green Building Policy Amendments
  16. 16. The River District  Low Carbon Bridging Strategies
  17. 17. Cambie Street Corridor     “DE Ready” requirements DE feasibility requirements DE “Franchise Areas” Low Carbon Bridging Strategies
  18. 18. Central Heat Biomass Conversion   Green Building Policy Amendments Mandatory Connection requirements
  19. 19. Thank you! dramslie@integral-group.ca gfaubert@integral-group.ca October 03, 2013

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