Towards Carbon Neutral & Net Zero Energy for Residential Buildings in BC Sub-Committee Meeting – Policies and Codes May 14, 2014 John Madden Director of Community Planning and Development 1
Acknowledgements 2
Sub-Committee Members Andy Christie City of Kimberley Dave Ramslie Integral Group Jennie Moore BCIT Mark Layton Association of Consulting Engineering Companies BC Norm Connolly City of New Westminster Tony Gioventu Condominium Home Owners' Association of B.C Ellen Pond Pembina Institute Murray Frank Construction Home 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 3
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 4
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 5
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 6
• 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� 7
Advisory and Sub-Committees Subcommittee - Financial Mechanisms & Incentives Advisory Subcommittee Committee Subcommittee - Policy, - Technologies Codes & (Expert Round Regulations Table) Subcommittee - Education, Awareness & Capacity Building 8
Sub-Committee Objectives Policies, Regulations & Codes To identify policies, legislation, regulations and supporting - tools to help local governments achieve deep energy use and move toward meeting carbon neutrality/net zero energy by 2050. Technologies Financial Tools & Incentives Education, Awareness & Industry Capacity Building 9
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 10
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 11
Define Characteristics of Housing House Characteristics Typical Rating Building Standards / Codes Unimproved Older house 0 to 50 Pre 1970’s Building Code Partially improved Older House 51-65 1970’s – 1980’s Building Code Fully improved Older House 66-75 1990s Building Code Typical New House 68-82 Current Building Code Energy Efficient House 80-90 R-2000 House Super energy-efficient House 91-100 Net Zero Homes 12
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 13
Matrix of Climate Zone & Typologies NRCan database, 2011 • Almost 74% of dwellings were constructed after 1977. • About 25% of all types of residential buildings were built in 1984 -1995. • The age of the house may reflect different construction types and hence determine the building characteristics and performance. 100 90 80 70 Percentage 60 50 40 30 20 BC dwellings Age Distribution, 10 by # of buildings (%) 0 Before 1946 – 1961 – 1978 – 1984 – 1996 – 2001 – 2006 – 2011 – 1946 1960 1977 1983 1995 2000 2005 2010 2011 Single Detached 4.3 5.6 18.9 13.6 24.5 12.2 7.4 11.9 1.6 Attached 2.2 2.3 7.7 12.7 29.7 10.4 12.9 18.9 3.1 Apartments 3.9 4.1 14.7 10.2 24.8 12.1 8.1 19.6 2.4 Mobile 5.2 3.9 23.3 9.7 20.5 12.5 9.5 13.2 2.1 14
Why is energy efficiency for buildings important? Electricity is a growing operating cost Inclining block rates; average increase of 4.4%/yr* - Major source of greenhouse gases 55% of Vancouver GHGs - *2010 forcast; pre-BC Hydro-review 15
Setting Targets and Step Changes SET SETTING TING TAR ARGET GETS & S & PERFORMANC PERFORMANCE E > OUT > OUTCOM COMES ES Adopt baseline performance based on similar climate zones and building types Define quantitative targets for carbon and energy performance Define “step changes” and recommendations 16
Policies, Regulations and Targets Federal: Reduce Canada’s GHG emissions by 17% below 2005 levels by 2020 - Energy Efficiency Act - Provincial: BC Climate Action Plan (2008) Reduce community emissions by 33% below 2007 levels by 2020, 80% by 2050 - Interim reduction targets: 6% by 2012, 18% by 2016 - LGA, Green Communities, Bill 27 (2008) Require local governments to set targets in their OCPs and RGS - Align policies, bylaws and actions to help achieve the reduction targets - BC Energy Efficient Buildings Strategy Reduce average energy demand per home by 20 percent by 2020 - Local Governments: Climate Action Charter (2007) Achieve carbon neutral corporate operations by 2012 - Measure and report on community GHG emissions profiles - Metro Vancouver Sustainable Region Initiative and Sustainability Framework - 17
Current Policies and Targets Municipal: City of Vancouver Greenest City 2020 Action Plan energy reduction target New buildings to be 20% below 2007 levels by 2020, and “carbon - neutral” by 2030 (for Part 3 and Part 9 non -residential buildings) - Existing large buildings reduce GHG emissions to 20% below 2007 levels by 2020 City of Kelowna - 33% reduction in community GHGs by 2020 Achieve an EnerGuide rating of 80 for 100% of new, detached and - single-unit row houses City of Dawson Creek - 14% reduction below 2006 levels by 2012; 33% by 2020; 85% by 2050 City of Fort St. John 14% reduction below 2008 levels by 2014; 21% by 2017; 33% by 2020; - 80% by 2050 18
Energy Related Codes National Building Code (December 2012) A New section containing energy efficiency requirements for housing and small buildings BC Building Code (2012) introduces energy efficiency standards for Housing and Small Buildings (Part 9): Effective December 19, 2014, adopted NBC performance standard for windows and heating equipment and harmonization 19
Recommend
More recommend
