LEED & NECBEnergy Perspective: Different Animals?

PRESENTED BY: DEAN TURGEON RET, CGD, LEED AP

SAULO ODUOR PhD, P.Eng, CEng (MCIBSE), CEM, CEC, LEED AP BD+C

WWW.3DENERGY.CA@3DENERGY

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ABOUT THE PRESENTERS

DEAN TURGEON RET, CGD, LEED® AP- Principal and CEO of 3D Energy Limited (2010) and Vital

Engineering Corp. (2002)- Edmonton Chamber of Commerce Environment Policy Committee- ACTIA Founding Director- AGEA Past President (2007-2010)- ASHRAE - NAC President (2007)- NAIT Alternative Energy Program Developer (2001-Present)- NAIT Sustainable Building Practices Resource Centre (SBPRC)- Canada Green Buildings Council: Programs Chair (2004)- International Building Performance Simulation Association- NAIT Top 50 in 50 recipient- 2010 ASET Technologist of the Year Award- 2010 National Achievement Award CCTT

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ABOUT THE PRESENTERS

SAULO ODUOR PhD, P.Eng, CEng (MCIBSE), CEM, CEC, LEED AP BD+C- Senior Energy Engineer for 3D Energy Limited- Professional Engineer (APEGA)- Chartered Engineer (Engineering Council, UK)- LEED-AP BD+C- Certified Energy Manager (Association of Energy Engineers)- Certified Business Energy Professional (Association of Energy

Engineers)- Construction Estimator Certified (Canadian Institute of Quantity

Surveyors)

NECB 2011: A VERY BRIEF OVERVIEW (Exp 12/16)

Introducing the National Energy Code of Canada for Buildings 2011

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NECB 2011: A VERY BRIEF OVERVIEW (Exp 12/16)

NECB 2015 was released December 1, 2015 and is in force December 1, 2016

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ABOUT THE NECB

In 2008, the “Council of the Federation” consisting of Provincial and Territorial Premiers called on NRC to develop a National Energy Code with a target of less than 25% of the previous reference standard – the 1997 MNEC

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WHY DO WE NEED A NECB?

1997 – Model National Energy Code for Buildings (MNECB)

• Not widely adopted as hoped• Suggested as “best practice” by some provincial

codes• Required by some provinces for the buildings they

own and/or occupy• However, the MNECB was shown to be practical tool

for the Federal Commercial Building Incentive Program (CBIP) and LEED 1.0

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WHY DO WE NEED A NECB?

Regulatory hurdles for NECB 2011

• Code must be adopted by jurisdiction to become law (See Alberta Regulation 31/2015)

• NECB is not a part of National Building Code (NBC), but a separate document

Note: Part 9 Housing Energy Code is actually a part of NBC and detailed in the ABC under 9.36• It outlines design and construction processes for the lowest level

you will be legally allowed to build from an energy perspective

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WHY DO WE NEED A NECB?

In March of 2015, the Alberta Safety Codes Regulation was revised to adopt the NECB 2011 into Alberta building code regulation

Other than this regulation, the NECB is not mentioned in any other section other than 9.36 (Residential)

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WHY DO WE NEED A NECB?

Buildings in Canada do NOTappear to be getting any better – in fact a 2009 study by NRCAN suggests EUI’s were lower in the 60’s and even the 20’s!

*Based on a sampling of buildings built in that era using energy use today.

Ref:Survey ofCommercialandInstitutionalEnergyUse– Buildings 2009,NRCAN

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HISTORY OF ENERGY CODES – AT A GLANCE

This graph is illustrative only

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APPLICATION OF NECB-2011

• NECB-2011 is a voluntary code, as are all national model codes, unless/until adopted/adapted by an authority having jurisdiction (AHJ)

• NECB-2011 provides recommended regulations and tables of minimum efficiencies

Where regional standards or regulations exist, they take precedence

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ADOPTION OF THE NECB

British Columbia and Vancouver (As a Charter City)

ASHRAE 90.1-2010 or NECB-2011

Ontario SB-10 with 3 pathsASHRAE 90.1-2010 + 189.1-2009 envelope5% less energy use than ASHRAE 90.1-201025% less energy use than MNECB-1997

Nova Scotia, Alberta, Saskatchewan, and Manitoba

NECB-2011

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ADOPTION OF THE NECB

Jurisdictions considering adoption/adaptation of NECB-2011

• Newfoundland & Labrador• New Brunswick• Prince Edward Island• Yukon• Nunavut

• Quebec has developed their own energy code

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Source:National EnergyCodeforBuildings2011– AppendixA

Chose your Path!

SO WHAT DOES NECB COMPLIANCE LOOK LIKE?

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Prescriptive• Must meet all prescriptive requirements• Checklists will be available from jurisdictions that adopt

NECB-2011• NECB Compliance Forms will be available from AHJ

Trade-off Paths• Simplified calculations for envelope, HVAC, DWH and lighting• Proposed value must be less than or equal to reference value• Spreadsheet tools available from NRCan

Performance Path• Requires a detailed hourly energy model• Proposed consumption must be less than or equal to

reference

SO WHAT DOES NECB COMPLIANCE LOOK LIKE?

NECB 2011- COMPLIANCE TIMING & REQUIREMENTS

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NECB 2011- COMPLIANCE TIMING & REQUIREMENTS

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1) Projects applying for a Building Permit PRIOR to November 01, 2015 are NOT required to demonstrate compliance with the NECB;

2) Projects applying for Building Permit PRIOR to May 01, 2016 are NOT required to demonstrate compliance with the NECB provided a Development Permit Application was accepted by the Authority Having Jurisdiction prior to the November 01, 2015 in force date;

NECB 2011- COMPLIANCE TIMING & REQUIREMENTS

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3) Projects applying for a Building Permit AFTERNovember 01, 2015 and PRIOR to May 01, 2016 are NOT required to demonstrate compliance with the NECB provided:

• Development Permit Submission was accepted by the Authority Having Jurisdiction prior to the May 01, 2016 NECB Transition Period End date; “and”

• The applicant can demonstrate to the satisfaction of the Authority Having Jurisdiction that preparations of the plans and specifications had been **substantially developed prior to the November 01, 2015 in force date of the NECB

NECB 2011- COMPLIANCE TIMING & REQUIREMENTS

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4) Projects applying for a building permit AFTERMay 01, 2016 ARE REQUIRED to demonstrate compliance with the NECB

NECB 2011- COMPLIANCE DOCUMENTATION

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COMPLIANCE REQUIREMENTS

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COMPLIANCE REQUIREMENTS

NECB AND LEED COMPLIANCE

• NECB-2011 compliance is based on energy consumption savings; Need only to match consumption in proposed and reference building;

• LEED 2009 compliance is based on energy cost savings; Proposed building performance must exceed reference to qualify;

• LEED v4 compliance is based on energy cost savings; Proposed building performance must exceed reference to qualify (October 31, 2016)

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COMPLIANCE REQUIREMENTS

NECB AND LEED COMPLIANCE

To Comply:• For non-LEED projects, apply NECB-2011 only;• For LEED 2009, must comply with both NECB-2011

and LEED 2009 requirements simultaneously:• For NECB compliance, choose NECB-2011 as reference;• For LEED 2009 compliance, choose either MNECB 1997 or

ASHRAE 90-1 2007 as reference• For LEED v4 projects, must comply with both NECB

and LEED v4 requirements:• Choose either NECB-2011, ASHRAE 90.1-2010, or an alternative

compliance path as reference

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COMPLIANCE REQUIREMENTS

NECB AND LEED COMPLIANCE

LEED EA Prerequisites

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ASHRAE 90.1 –2007

MNECB 1997 ASHRAE 90.1 - 2010

NECB-2011

LEED 2009

10% cost (NC); 5% cost (Existing

Bldgs)

23% cost (NC); 19% cost (Existing Bldgs)

N/A N/A

LEED v4 N/A N/A

5% cost (NC); 3%

cost (Existing Bldgs)

5% cost (NC); 3% cost (Existing

Bldgs)

OTHER LEED REQUIREMENTS LEED 2009

LEED 2009

MNECB 1997:• Mandatory provisions of MNECB 1997;• Include all energy costs associated with the project;• Compare with baseline modeled to MNECB 1997;• Default process energy cost is 21% of total energy cost

of baseline building;• No penalty or credit for performance of District Energy

System (DES);

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OTHER LEED REQUIREMENTS LEED 2009

LEED 2009

ASHRAE 90.1-2007:• Mandatory provisions of ASHRAE 90.1-2007 (Sections

5.4, 6.4, 7.4, 8.4, 9.4, 10.4);• Include all energy costs associated with the project;• Compare with baseline modeled to Appendix G of

ASHRAE 90.1 2007;• Default process energy cost is 25% of total energy cost

of baseline building;• No penalty or credit for performance of DES;

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OTHER LEED REQUIREMENTS LEED v4

LEED v4

ASHRAE 90.1-2010:• Mandatory requirements include:

• Envelope (insulation, air leakage, envelope properties, fenestration properties, and areas);

• HVAC (minimum equipment efficiencies, load calculations, pump heads)

• Controls (thermostatic, set-points, off-hour, automatic shutdown, setback, ventilation, etc.)

• HVAC system construction, insulation, and leakage (ducts, plenum, pipe)

• Minimum O/A rates shall be same for proposed and reference buildings (G3.1.2.6)

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OTHER LEED REQUIREMENTS LEED v4

LEED v4

NECB-2011:• Comply with ASHRAE 90.1-2010 mandatory

requirements, in addition to the performance path limitations in NECB (Section 3.4.1.2, 5.4.1.2, and 6.4.1.2):• Section 3.4.1.2: Radiant heating cables imbedded in building

assemblies;• Section 5.4.1.2: HVAC appliances and equipment energy efficiency

requirements;• Section 6.4.1.2: SHW appliances and equipment energy efficiency

requirements;

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OTHER LEED REQUIREMENTS LEED v4

LEED v4

NECB-2011 (cont’d):• Apply NECB-2011 FDWR limitations to reference

model;• Apply NECB-2011 SRR limitations to reference model;• Model proposed and reference O/A rates as per

ASHRAE 90.1-2010 (G3.1.2.6)

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OTHER LEED REQUIREMENTS LEED v4

LEED v4

Notes:• For NECB-2011 performance path, but no LEED v4,

mandatory requirements are applied on reference building only.

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OTHER LEED REQUIREMENTS RENEWABLE ENERGY

RENEWABLE ENERGY

LEED v4:• Projects must meet minimum percent savings before

taking credit for renewable energy systems

NECB-2011:• There is no consideration for the source of energy,

only utility type and quantity are accounted for;

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EXAMPLES

BUILDING ENVELOPE33

NECB-2011 ASHRAE-90.1-2010Wall R-27 R-15.6Roof R-35 R-20.8

FDWR 29% 40%

Fenestration U-0.387U-0.45 (metal frame)

U-0.35 (Non-metal frame)

EXAMPLES

LIGHTING34

NECB-2011 ASHRAE-90.1-2010Office (enclosed) 11.9 W/m2 11.9 W/m2

Classroom 13.3 W/m2 13.3 W/m2

Patient Room 6.7 W/m2 6.7 W/m2

Food Prep 10.7 W/m2 10.7 W/m2

EXAMPLES

HVAC35

NECB-2011 ASHRAE-90.1-2010SWH-Gas Storage,

>75,000 Btu/h80% Et 80% Et

SWH-Gas Instant.,>200,000 Btu/h

80% Et 80% Et

HW Boilers – Gas 83% Et (300K-2500K Btu/h)83.3% Et (>2500K Btu/h)

80% Et (300K-2500K Btu/h)82% Et (>2500K Btu/h)

Furnace - Gas 81% Et 80% EtAir-cooled AC Units(250K-760K btu/h)

COP-2.87 COP-2.87

Water-cooled AC Units(250K-760K btu/h)

COP-3.16 COP-3.58

LEED POINTS ALLOCATION

LEED 2009 POINTS FOR PERCENTAGE IMPROVEMENT IN ENERGY PERFORMANCE

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New ConstMNECB 1997

New ConstASHRAE 90.1-2007

Exis. BidgRenos

MNECB 1997

Exis. BidgRenos

ASHRAE 90.1-2007

Points for NC

25% 12% 21% 8% 1 27% 14% 23% 10% 2 28% 16% 25% 12% 3 30% 18% 27% 14% 4 32% 20% 28% 16% 5 33% 22% 30% 18% 6 35% 24% 32% 20% 7 37% 26% 33% 22% 8 39% 28% 35% 24% 9 40% 30% 37% 26% 10 42% 32% 39% 28% 11 44% 34% 40% 30% 12 45% 36% 42% 32% 13 47% 38% 44% 34% 14 49% 40% 45% 36% 15 50% 42% 47% 38% 16 52% 44% 49% 40% 17 54% 46% 50% 42% 18 56% 48% 52% 44% 19

LEED POINTS ALLOCATION

LEED v4 POINTS FOR PERCENTAGE IMPROVEMENT IN ENERGY PERFORMANCE(REFERENCE ASHRAE 90.1-2010 AND NECB-2011)

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New Construction

Major Renovation Core and Shell

Points (except Schools,

Healthcare)

Points Healthcare Points Schools

6% 4% 3% 1 3 1 8% 6% 5% 2 4 2 10% 8% 7% 3 5 3 12% 10% 9% 4 6 4 14% 12% 11% 5 7 5 16% 14% 13% 6 8 6 18% 16% 15% 7 9 7 20% 18% 17% 8 10 8 22% 20% 19% 9 11 9 24% 22% 21% 10 12 10 26% 24% 23% 11 13 11 29% 27% 26% 12 14 12 32% 30% 29% 13 15 13 35% 33% 32% 14 16 14 38% 36% 35% 15 17 15 42% 40% 39% 16 18 16 46% 44% 43% 17 19 -50% 48% 47% 18 20 -

LEED POINTS ALLOCATION

POINTS FOR RENEWABLE ENERGY(CALCULATED FROM FORMULA)

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Percentage Renewable Energy Points (except CS) Points (CS) 1% 1 1 3% — 2 5% 2 3

10% 3 —

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QUESTIONS?PRESENTED BY:

DEAN TURGEON RET, CGD, LEED AP

SAULO ODUOR PhD, P.Eng, CEng (MCIBSE), CEM, CEC, LEED AP BD+C

WWW.3DENERGY.CA@3DENERGY