Towards Carbon Neutral & Net Zero Energy for Residential Buildings in BC Sub-Committee Meeting – Technologies May 13, 2014 John Madden Director of Community Planning and Development
Acknowledgements
Sub-Committee Members Areef Abraham Quality Home Services Bill MacKinnon BC Housing Chris Mattock HD+C Design Graham Lovely MCW Consultants Hazel Rempel Nedco/Rexel Mike Swinton NRC Canada Doug Rempel Eco-Lighten Energy Solutions Project Team Tracy Casavant Executive Director, Light House John Madden Project Director, Light House Curtis Dorosh Technical Lead, Light House Joy Chen Building Analyst, Light House Souri Riazi Research Analyst, Light House Wayne Ward Technical Director, BRE UK Svend Anderson GHG Accounting and Protocols Advisor
Agenda Time Discussion Items 1:00 – 1:10 Welcome & Introductions • Study Objectives 1:10 – 1:30 • Process and Timelines • Preliminary Research Findings • Challenges and Opportunities 1:30 – 2:30 Expert Working Sessions 2:30 – 3:00 Summary and Next Steps
Study Objectives Engage governments, utilities, building and the real estate industry across the Province to develop a cohesive and strategic road map to advance carbon neutral and/or net zero energy for residential buildings* . * with a focus on BC Building Code Part 9 buildings
Study Approach Develop Research Framework • Research Research Climate Zone Typologies Best Best Best Practices – Practices – Practices – Targets & Codes & Incentives & Matrix of Climates & Typologies Performance Regulation Education Climate Single Duplex / High Rise Zone Detached Rowhouse MURBs South Okanagan North Province-wide Consultation – Prioritize climate zones & typologies / Discuss implications of Bes Practices for BC • Draft Key Directions & Province-wide Recommendations Webinar Road Map to Carbon Neutral Guide Best Practices for Carbon Neutral & & Net Zero Energy Existing Net Zero Energy Residential Buildings in BC Residential Buildings
• Carbon Neutral Building Definitions – A building which significantly reduces energy consumption combined with the increased use of low carbon energy sources to meet the remaining demand. • Net Zero Energy Building? – A building which significantly reduce STEP� 1:� energy consumption combined with Squeeze� energy� demand,� usually� to� a� the use of renewable energy pre-defined� target � generated on-site to meet the remaining demand. CARBON� NEUTRAL� BUILDING� NET� ZERO� ENERGY� BUILDING� STEP� 2:� STEP� 2:� Meet� remaining� Meet� remaining� energy� demand� with� energy� demand� with� no� (or� low)� carbon� renewable� energy� energy� generated� on� generated� on-site� or� off-site�
Timelines Timeline March - April May - June July - August September - October November - December ☐ ☐ ☐ Research climate zones Focused interviews Announce Public Workshops ☐ Fold in Public Consultation Finalizing Report ☐ ☐ Research residential typologies Key findings input ☐ - Understand building characteristics Sub-committee meetings Key messages - - Understand baseline performance ☐ Website Development Barriers & opportunities - ☐ Identify Advisory Group members Activities ☐ Drafting Report ☐ Identify Best practices including: - Incorporate directions - targets & performance from public consultation - codes & regulations - incentives & financial tools Engage governments, utilities, building and - Education & Awareness ☐ Develop annotated resource directory the real estate industry across the Province ☐ ☐ ☐ Best Practices: Send out invites for Public input synthesis Draft Report version 2 (Nov.) & bibliography ☐ Define baselines workshop ☐ ☐ Draft Report version 1 Final Report (December) ☐ Confirm Advisory Group ☐ Define targets ☐ Summary key findings (October) - ToR for Advisory Group ☐ Identify policy pathways to develop a cohesive and strategic road ☐ Deliverables Characterize BC climate & typologies ☐ Create precedent & case studies on each typology ☐ Develop report outline map to advance carbon neutral and/or net zero energy for residential buildings* . Advisory Group Meeting # 1: (April 2) Sub-committee Meetings: (May) Advisory Group Meeting # 3 Advisory Group Meeting # 4 Advisory - Confirm scope, timeline, networks - Review key research findings (October) (December) committee - Confirm approach - Review Draft Report - Review Final Report & Sub- Advisory Group Meeting # 2: (June) committee - Summarize directions Public Workshops: Webinar: (December) (September) Share results & Draft Report · Burnaby Public · Victoria / Nanaimo (TBC) · Abbotsford / Chilliwack (TBC) Workshops · Kelowna · Kimberley · Prince George · Dawson Creek
Consultative Approach EVENT EVENTS S STAKEHOLDERS ST AKEHOLDERS OUT OUTCOMES COMES Industry Reps Sector Leaders Build Awareness of Project Advisory Government Define Roles and Expertise Committee Utility Reps Confirm Scope and Timelines Academics Meetings Professional Associations Build awareness of project Industry Reps Understand drivers, barriers Sector and opportunities Leaders Understand approaches Province-Wide Government Utility Reps based on buildings types and Workshops Academics climate variations Ground-truth best practices Professional Associations
Advisory and Sub-Committees Subcommittee - Financial Mechanisms & Incentives Advisory Subcommittee Committee Subcommittee - Policy, - Technologies Codes & (Expert Round Regulations Table) Subcommittee - Education, Awareness & Capacity Building
Best Practices Research Focus Policies, Regulations & Codes Technologies For similar climates and similar building types, what are the - quantitative targets for carbon and energy performance have been established? From which baselines? How were they implemented? On what timeline? - Where actual measurement has been completed, how - reasonable / effective were the targets? What protocols are used to quantify carbon performance? - What building technologies or GHG reduction strategies have - been applied to meet the targets. Financial Tools & Incentives Education, Awareness & Industry Capacity Building
Session Objectives Gain an understanding of the residential building sector (Part 9) and representative archetypes across BC Understand baseline performance within the archetypes (how to fill gaps) Identify suitable technologies based on archetypes and climate zones Define roles and responsibilities of key groups in moving technologies forward? What are realistic timelines for implementation? * with a focus on BC Building Code Part 9 buildings
BC Climate Zones NECB has identified six climate zone (4, 5, 6, 7A, 7B and 8) within Canada based on Heating Degree Days ASHRAE has defined four climate zones within BC (zones 5, 6, 7 and 8) NRCan uses ENERGY STAR Climate Zone classification. Three climate zones are identified in BC (zone A, B and C). • Zone A: ≤ 3500 HDDs • Zone B: > 3500 to ≤ 5500 HDDs • Zone C: > 5500 to ≤ 8000 HDDs • Zone D: > 8000 HDDs *Heating Degree Day (HDD) - The annual sum of the degrees of the average daily temperature for all days below 18 ° C. - The higher the HDD value, the colder the location.
Select cities in different Climate Zones • Zone A: ≤ 3500 HDDs ➠ Vancouver, HDD 18max (1971-2000) : 2960 • Zone B: > 3500 to ≤ 5500 HDDs ➠ Kelowna, HDD 18max (1971-2000) : 3869 • Zone C: > 5500 to ≤ 8000 HDDs ➠ Fort St. John, HDD 18max (1971-2000) : 5893 • HDD 18max - The standard method for calculating the Degree Day Daily mean; Daily mean = (Daily max + Daily min) ÷ 2 • • HDD 18max (1971-2000) – The average of HDD 18max value from 1971 to 2000
Residential Building Typologies Structural Type of Dwelling and Collectives Reference Guide, 2011 Census: • Detached Houses: Single Family Dwellings Detached Houses • Attached Houses: Duplex, Semi-Detached and Row Houses Duplex (horizontal division) Semi-Detached (vertical division) Row House (vertical division) • Multi-Unit Residential Buildings: Apartments Apartment < 5-storey Apartment ≥ 5 -storey (horizontal & vertical division) (horizontal & vertical division) • Moveable Dwellings: Mobile Homes
Matrix of Climate Zone & Typologies Statistics Canada, 2012 • Single detached houses are the most common housing type except in BC. • The average occurrence of single detached houses across BC is 47.7%. Climate Zone A B C House Types BC Average Vancouver Kelowna Fort St. John 47.7% 33.8% 56.5% 59.0% Single-detached Distribution of housing types Semi-detached house 3.0% 2.2% 4.6% 5.4% in BC climate zones, Row house 7.4% 9.0% 5.4% 7.8% by # of buildings 10.4% 14.2% 7.2% 1.4% Duplex Apartment, < 5 storeys 20.5% 25.6% 19.9% 13.9% Apartment, ≥ 5 storeys 8.2% 14.5% 1.6% 0.9% 2.8% 0.7% 4.7% 11.7% Moveable and other houses 2.8% 2.7% BC Distribution, BC Distribution, Total # of units Total Floor Area 19.4% 28.7% 47.7% Detached 10.0% Attached 67.9% Apartments 20.8% Mobile Homes
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