1 / 12

Implementing Combined Heat and Power in Highrise Buildings

Learn about the benefits, equipment choices, and design considerations for implementing CHP in highrise residential buildings. Discover the feasibility studies conducted by Tridel and essential factors to consider in system design.

lesley-avila
Télécharger la présentation

Implementing Combined Heat and Power in Highrise Buildings

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Considerations for Implementing Combined Heat and Power in Highrise Residential Buildings: Lessons LearnedFebruary 4th 2010

  2. Accelerating the adoption of green building technologies and contributing to the transformation of the built environment. • Objectives: • Evaluate new green building technologies & equipment through in-situ testing and monitoring in new and existing high rise buildings; • Leverage knowledge and experience of leading developer and building owner(s) to strengthen the cleantech product development and commercialization value chain.

  3. What is Combined Heat & Power Sewage Treatment • CHP, or Cogeneration, utilitizes the waste heat from electricity generation to produce simultaneous hot water (thermal energy) • Primary types of equipment: • Microturbines • Reciprocating Engines • Fuel Choices: • Natural Gas (common) • Biofuels (eventually) Source: www.powerecosystems.com

  4. Equipment Choices Sewage Treatment

  5. Potential Benefits: CHP + DG Sewage Treatment • Energy Efficiency and Potential Emissions Reductions • Reduction in building electricity demand • Uninterrupted emergency power generation • Distributed generation: • Enables self reliance & fuel switching flexibility • Reduces efficiency losses from distribution networks • Reduces investment requirements in upstream capacity (smaller centralized power plants)

  6. Tridel’s Combined Heat & Power Feasibility Studies Sewage Treatment • Single Condominium Building • Tridel, TAF, TRCA, OPA, Enbridge, Provident Energy Management 2. Tandem Towers in New Development Complex • Tridel, Enbridge, Private 3rd Party Utility Solaris I & II @ Metrogate 1.2 MW CHP Grand Triomphe II 540 KW CHP

  7. Design Considerations Size system to deliver less than base Power load • To optimize system performance, thermal storage is necessary on larger systems • Then • THen But you will still have too much heat in summer • To optimize system performance, thermal storage is necessary on larger systems • Then • THen Typical Time of Use for power in MURBs

  8. Key Factors in Designing a System Sewage Treatment • Scale • Do not exceed the building’s base load. Stay behind the meter. Too complicated to grid connect. • Do not exceed the summer thermal (DHW) load. You’ll be dumping hot water and eroding the environmental benefits. • Size for emergency back-up generator • (Check economics on smaller systems) • Operating Schedule • Plan to run the equipment during Peak Periods mainly - and maybe Mid-Peak. • Do not operate during off-peak, or you’ll erode environmental benefits. • System will mostly likely not be thermal load following for economic reasons. • Thermal Storage • Probably required on residential installations • Adds cost but preserves environmental benefit and system efficiency

  9. Key Factors in Designing a System Sewage Treatment 4. Location • Installing near the ground may require special exhaust venting • Installing on the roof may require additional sound and vibration attenuation 5. Cost • Approximately $1000/kw for equipment • $2500/kw installed 6. Maintenance • Use a reliable operator. These systems can be too complex for a condo board. 7. Design-Build/Own-Operate • A third party can design-build-own-operate, but be mindful of above considerations

  10. Illustrative Economics of a 540 KW CHP in a New Building Sewage Treatment Assuming Time of Use Rates apply Operating Schedule: 8 hrs/day @ Peak + 6 hrs/day @ Mid (7 months) = 3,036 hrs/year Avoided Costs from Operation: $277,000/yr Operating Costs (at $0.38/m3): $186,000/yr Operating Margin (before interest): $91,000 Install Costs: $1,361,000 - $250,000 (Generator) - $86,400 (Incentive*) - $X (boiler reduction) = $1,024,600 Sensitivity • $/kwh + 20% improves Operating Margin to $131,500 • + $/m3 + 20% drops Operating Margin to $80,500

  11. Enabling Conditions Constraints Sewage Treatment • Equipment start-up times must meet other code requirements • Install costs higher for retrofit • NG price volatility risk • Existing regulated price plan • Non-alignment in summer • No viable Clean Energy Standard Offer for NG • Availability & Price • CSA-282 rule change for emergency back-up systems • Retiring old appliances • Low input fuel prices • Time of Use Rates • Coincident Power/Thermal demand • Provincial price support mechanism • FIT for Biogas ($ $.16/kwh)

  12. THANK YOUJamie Jamesjjames@350capital.com

More Related