Next Generation of the EnerGuide Rating System. Presentation to the ERS Policy Advisory Committee March 11-12, 2010

Transcription

1 Next Generation of the EnerGuide Rating System Presentation to the ERS Policy Advisory Committee March 11-12, 2010

2 2 Agenda Opening remarks and introductions Setting the Context Overview of the next generation ERS development process Overview of the existing ERS Next generation vision and key considerations Seed Proposal Presentation and Discussion Vision Checklist and Confirmation of System Parameters Sub-committees scopes of work Next steps

3 3 Setting the Context

4 4 Residential success story 15% of GHG emissions and 17% of energy use in Canada in 2006 Petajoules Residential energy use, with and without energy efficiency improvements, Savings from energy efficiency PJ Energy use without energy efficiency improvements Energy use with energy efficiency improvements Appliances, 15% Water heating, 18% Residential energy use by end-use, 2006 (percent) Space cooling, Lighting, 5% 2% Space heating, 59% energy use up 5% intensity down 22% +5% -22%

5 5 Getting to 2020 * NRTEE Getting to 2050: Canada s Transition To A Low-Emission Future

6 6 Key Developments Turning the Corner 20x2020, 60x2050 Council of the Federation 20x2020 CCBFC energy in building code Provincial legislation Energy in codes ERS 80, ~R-2000/Energy Star levels Labelling Net zero homes / EQuilibrium homes Industry and provincial support for labelling Nearly a million ERS labels, nearly 2,000 NRCan Certified Energy Advisors ecoenergy partnerships with 12 of 13 provinces/territories

7 7 OEE Housing Vision Canada will lead the world with its systems supporting energy performance in housing. The marketplace will have: Smart regulation for housing energy performance Best-in-class programs for leadership and innovation An advanced energy retrofit market Home Energy Labelling for all housing World-leading decision-making support for home owners, industry and other stakeholders National systems supporting regional solutions for all of the above

8 8 New Housing Key Drivers Increasing levels of housing performance The move to energy in the codes provincial and national (~ERS 80) The need for a framework for higher energy performance programming in a code-plus environment Demand for national consistency and credibility across the proliferation of green labels

9 9 Moving Forward: Housing & Energy Ongoing Programming Activities Better Building/Best-in-Class Programming (and next generation R-2000, ENERGY STAR) Training Labelling Next Generation ERS development and standardized through Standard Council of Canada process Supporting Energy in the Codes NRCan support: For jurisdictions legislating now Supporting Energy in the National Building Code (and planning to coordinate programming accordingly)

10 10 Coordinating NRCan Programming with Future Code Development NRCan & CCBFC Joint Task Group on Energy Efficiency in Houses Scoping (now complete) Debra Haltrecht Observer Canadian Commission on Building and Fire Codes Kevin Lee Ex officio Joint Task Group on Energy Efficiency in Houses - Objective Debra Haltrecht Ex officio Joint Task Group on Energy Efficiency in Houses - Technical Debra Haltrecht Ex officio CCBFC & NRCan ERS Policy Advisory Committee Richard Miller CCBFC Ex officio Frank Lohmann CCC Ex officio R-2000 Standard Renewal Committee Mihailo Mihailovic CCC Ex officio Next Generation ENERGY STAR for New Homes Advisory Committee tbd - CCC Ex officio

11 11 Standards and Labels 100 Net Zero Notional future ERS levels (to be determined through consultation) for the NRCan framework and suite of standards and labels EnerGuide Rating Scale 86* Code R-2000, as best practice, serves as basis right up to Net Zero *86 is key point where renewables start to kick in R-2000 a best-in-class performance brand, 50% better than code for premiere builders, leading energy performance and innovation ENERGY STAR a prescriptive energy performance brand 25% better than code

12 12 Best in Class Labels NRCan standards and labels can still form the basis of regional adaptations, such as the current: Built Green TM, Yukon GreenHome, Power Smart New Home, Novoclimat MC, EQuilibrium TM LEED All build off the national ERS

13 13 EnerGuide Rating System Developing the Next Generation ERS for new and existing housing Rating scale Label Procedures Software Update of training material Update of marketing and communications material

14 14 Overview of the Next Generation ERS Process

15 15 Committee Structure ERS Policy Advisory Committee Executive Technical Sub-Committee Information Sub-Committee Delivery Sub-Committee

16 16 ERS Committees Policy Development Undertaken by the Policy Advisory Committee Executive (voting): representatives of P/T energy programs/policy ministries Advisors (non-voting): Provincial code representatives Sub-Committee Chairs: technical, information and delivery Ex-officio (non-voting): NRC, CCBFC, CMHC, NRCan Detailed recommendations Undertaken by Sub-committees (technical, information, delivery) balanced representation of expertise and geography Industry will be well represented

17 17 Policy Advisory Committee Scope To define the policy framework To consider recommendations from the subcommittees To make recommendations to NRCan for adoption and implementation.

18 18 Technical Sub-Committee Scope To make recommendations on how to implement the functional requirements set by the Policy Advisory Committee; To make recommendations on how the elements fit into the system; To consider data collection for both new and existing houses; To provide technical recommendations to the Policy Advisory Committee; and To recommend tool requirements to meet the technical needs.

19 19 Information Sub-Committee Scope To make recommendations on what information should be included on the label; To make recommendations on what information should be included in new housing reports; To make recommendations on what information should be included in existing housing reports; To make recommendations on other information requirements; To provide these recommendations to the Policy Advisory Committee; and To recommend tool requirements to meet information needs.

20 20 Delivery Sub-Committee Scope To review existing ERS procedures with respect to: Delivery structure (SO, EA), Training and accreditation, Quality Assurance, and Liability. To make recommendations on how the delivery structure should function; To make recommendations on how training should function and what it should cover; To make recommendations on quality assurance; To make recommendations around liability issues inherent in the system; To provide these recommendations to the Policy Advisory Committee; and To recommend tool requirements to meet delivery needs.

21 21 Policy Advisory Committee Mandate & Vision Vision Statement for the Next Generation EnerGuide Rating System Process The vision for the the next generation EnerGuide Rating System (ERS) process is to develop the most effective energy rating system, supported by the best tools and acceptable to and recognized by all stakeholders. Mandate of the Committee: This Committee is responsible for providing recommendations to NRCan on a policy framework for the rating system. This will include developing the functional requirements of the system and determining what elements are to be included in its scope. NRCan will retain ownership of the EnerGuide Rating System and will be responsible for its management and for the administrative procedures for applying the rating, working with partners in a robust delivery framework.

22 22 TOR - Parameters The following parameters must be adhered to by the Committee: The system must be able to rate the energy efficiency of both existing and new houses including net zero homes on the same scale The rating system must only rate energy and factors that are related to energy use in the home The rating system must have the ability to account for electrical loads, air conditioning and renewable energy The rating system must be complementary to energy codes The rating system must offer stability for stakeholders using the system The system must be able to help homeowners make informed decisions about energy use in their homes

23 23 Roles & Responsibilities Chair: Chairs committee meetings Assists in obtaining consensus and judges when consensus is reached All Committee Members: Committed to the success of the Next Generation ERS Development process Conduct themselves in an orderly manner during all committee activities Act with respect for all participants in the process Follow the practice of consensus-based decision making Participate in committee activities Participate in working groups as required Attend as many meetings as possible (no substitutes)

24 24 Roles & Responsibilities Executive Committee Voting committee members Return completed ballots Declare a known or potential conflict of interest and refrain from voting on the matter Advisors Members Non-voting committee members Inform the ERS development process Chairs of the three sub-committees Ex officio Members: Non-voting committee members Secretary NRCan, NRC, CCBFC, CMHC

25 25 Roles & Responsibilities Observers: non-voting individuals and representatives of organizations are on distribution list, invited to submit comments at all stages, invited to attend open committee meetings, may participate in meeting discussions as time permits and at discretion of Chair Working groups: may be constituted on recommendation of Chair to study a precisely defined problem or produce a specific document. membership consists of voting members and experts as determined by the Chair.

26 26 Rules of Engagement Voting Quorum: minimum of 50% of voting members. Operates on the basis of consensus, but vote is required for final approval of decisions Chair may elect to call a vote at other key decision points Done by show of hands (Chair may call for a written vote) Motions leading to votes: worded such that success implies action and failure implies the status quo Voting members may cast an affirmative vote, a negative vote or an abstention. Negative votes must be accompanied by a justification and preferably by a suggested action that, if accepted, would result in an affirmative vote. Negative votes without justification will be considered an unreturned ballot Substantive complaints are to be addressed by the Committee while procedural complaints are to be addressed by NRCan.

27 27 NRCan s Role Owner of the process Secretary Program Authority Technical Authority Development of related documentation Development of tools

28 28 TEAM Debra Haltrecht Elizabeth Sampson Leslie-Ann Robertson Lily Spek Staff from New Housing Staff from Existing Housing Staff from Technical Staff from CanmetENERGY

29 29 Overview of the Existing ERS

30 30 ERS Background Need for Canadian energy rating system identified in national Workshop on Home Energy Retrofit in 1993 Tool to help market transformation Benchmark energy performance of existing and new houses Validate energy improvements in existing stock Support informed purchase decisions Support future programming activities Technical guidelines developed by NRCan with input from Technical Advisory Committee House-as-a system approach Built on R-2000 and HOT2000 software platform Consumer research to develop rating scale, label, protocol

31 31 ERS Background Pilot in 1997 EnerGuide for Houses (EGH) launch in 1998 in existing housing market Pilots in 2001, launch in new housing market in 2003 Grant added in 2003, based on measured improvement in EE, using EGH ratings EnerGuide Rating System replaces EGH under ecoenergy in 2007

32 32 ERS Background Over 884,000 houses labelled since ,000 in new construction 272,174 existing houses under EGH (98-06) Over 587,000 under ecoenergy Retrofit since April 1/ PJ energy saved 0.8 Mt GHG saved

33 33 EnerGuide Rating Scale Energy Efficiency Rating = 100 Estimated Total Energy Consumption x 20 Benchmark Total Energy Consumption R-2000 Rating scale is from zero to represents zero energy use on an annual basis 0 represents very inefficient home 80 represents R-2000 energy level

34 34 Estimated Energy Consumption Energy Efficiency Rating = 100 Estimated Total Energy Consumption x 20 Benchmark Total Energy Consumption Consists of: Space heating energy use insulation levels and airtightness (blower door) windows and solar gains space heating system efficiency size, orientation and location Domestic hot water energy use Based on the use of 225 L/day hot water equipment energy factor / efficiency Base electric loads assumed 24 kwh/day (constant)

35 35 Benchmark Energy Consumption Energy Efficiency Rating = 100 Estimated Total Energy Consumption x 20 Benchmark Total Energy Consumption Consists of: Space heating energy consumption degree-days for the location heated volume Domestic hot water energy consumption assumed 225 L/day hot water use at 55 o C average annual ground temperature Base electric loads assumed 24 kwh/day (constant)

36 36 Benchmark Energy Consumption (Detailed R-2000 target Calculation) Energy Efficiency Rating = 100 Estimated Total Energy Consumption x 20 Benchmark Total Energy Consumption Benchmark Energy = Space Heating Benchmark + DHW Benchmark + Base Load Benchmark Consumption 49* Degree _ Days Space Heating Benchmark = 3.6* S * where Degree_Days is the number of long term average degree days to 18 o C base V is the heated volume of the house in cubic meters. S = 4.0 megajoules (MJ) for fuel-fired space heating systems, or DHW Benchmark = * * Tw 4745 W ( ) where Tw is an annual average local water mains or deep soil temperature in o C. Base Load Benchmark = 31,536 MJ 24 kwh/day (24 for 365 kwh/day days for 365 days) V 2.5 S = 3.8 megajoules (MJ) [1.0 kilowatt hours (kwh)] for electric space heating systems Degree_Days = the number of long term average degree days to 18 C V = the heated volume of the house in cubic meters W=6.19 megajoules (MJ) [1.72 kilowatt hours (kwh)] for fuel-fired DHW systems W = 3.87 megajoules (MJ)[1.72 kilowatt hours (kwh)] for electric DHW systems T w = an annual average local water mains or deep soil temperature in C

37 37 Standard Operating Conditions Occupancy profiles 2 adults/ 2 children 50% of the time Temperature: main floor 21 o C, basement 19 o C Hot water load: 225 liters/day Electric load: 24 kwh/day Ventilation requirements A minimum total monthly average ventilation rate of 0.30 air changes per hour during the heating season Weather data Rating is calculated using 30-year average weather data Eliminate occupancy and lifestyle variables to allow comparison between houses

38 38 Typical EnerGuide Ratings for Homes Net Zero Houses Advanced Houses R-2000 / ENERGY STAR Energy Efficient New houses Conventional New Houses Upgraded Old Existing Houses Existing Old Houses built prior to EnerGuide Rating

39 39 EnerGuide Scale Misconceptions Misconception: The scale is somehow logarithmic Misconception: Each point is a 1% improvement Reality: for any given house, each point on the scale is worth the same amount of energy, regardless of where it is on the scale (e.g. for House A, each point is 5GJ; for House B, each point is 6 GJ)

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