national energy code for buildings
DESCRIPTION
Lyle Scott NECB 2011 prescriptive requirements and compliance options as well as a review of provincial and U.S. energy code adoptionTRANSCRIPT
Agenda
• National Energy Code for Buildings 2011
• What is it?
• How will it effect you?
• What else is around the corner?
• Building Energy Labeling
• Energy Intensity Metrics
• NECB 2015
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National Energy Code for Buildings 2011
• Update to the Model National
Energy Code for Buildings 1997
(MNECB)
• ~27% efficiency improvement
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Model National Energy Code for Buildings 1997
• Referenced in the OBC
• Not used by other provinces
• Used by incentive programs and
LEED
• Requirements changed by province
and fuel source
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National Energy Code for Buildings 2011
• NECB requirements
defined by Heating
Degree Days (HDD)
• Energy source doesn’t
change requirements
• National Building Code
referenced for weather
data
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National Energy Code for Buildings 2011
• Contains requirements for:
• Building Envelope
• HVAC
• Domestic hot water
• Lighting
• electrical power systems and motors
• Excludes plug loads
NECB Parts
3. Envelope
4. Lighting
5. HVAC
6. DHW
7. Power and Motors
8. Performance Path
Compliance Options
Mandatory Provisions
Prescriptive
Energy Cost Budget
Trade-off (envelope)
Simplified (HVAC)
National Energy Code for Buildings 2011
Compliance Options
• Prescriptive or trade-off
requirements in Parts 3 to 7
Or
• Performance requirements
in Part 8
Prescriptive
Simple or Detailed
Trade-off
Section 8 Energy
Performance Path
National Energy Code for Buildings
Envelope Compliance Options
Envelope
Meets
NECB
Building
Meets
NECB
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NECB Prescriptive Requirements Be careful with Climate Zones!
Zone 5 Zone 6
Location Toronto
Mississauga
Belleville
Vaughan
Markham
Kingston
Window Usi
(U-value)
2.2 (0.39) 2.2 (0.39)
Walls (above
grade)
0.278 (R-20) 0.247 (R-23)
Walls (below
grade)
0.3.79 (R-15) 0.284 (R-20)
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National Energy Code for Buildings 2011
• Maximum Prescriptive Glazing Ratios
• 40% Vancouver and Toronto
• 36% Ottawa
• 33% Sudbury and Edmonton
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National Energy Code for Buildings 2011
• Lots of other requirements
including:
• Heat recovery on many systems
• Increased equipment efficiencies
• Lighting controls
• NECB Coming to BC October 22?
• NECB in OBC 2012???
Refrigerator Efficiency
European Building Energy Labels
REALpac 20 by '15 Initiative
• Study of 56
buildings
• Achieving the
20 by ‘15 target
will save an
average of
$1.35/ft2
BOMA BESt Energy Report
BOMA BESt Energy Report
Step one: Measure
Step Two: Improve
REALpac 20 by '15 Initiative
• Study of 56
buildings
• Achieving the
20 by ‘15 target
will save an
average of
$1.35/ft2
Architecture 2030 Challenge
• Design new buildings to be 60% more
energy efficient than the provincial average
for that building type
• 60% in 2010
• 70% in 2015
• 80% in 2020
• 90% in 2025
• Carbon-neutral in 2030 (using no fossil fuel
GHG emitting energy to operate).
Architecture 2030 Benchmarks
Ontario Energy Intensity (GJ/m2/yr)
Wholesale 1.85
Retail 1.62
Information and Cultural 1.73
Offices 1.42
Education 1.77
Healthcare 2.04
Arts, Entertainment and Recreation 2.68
Accommodation and Food Services 2.60
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National Energy Code for Buildings 2015
• Establishing a building Energy Use Index for
16 building types including:
• Offices
• Schools
• Residential Buildings
• Retail
• Arenas
• Restaurants
• Long Term Care
• Warehouses
• Pools
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National Energy Code for Buildings 2015
Prescriptive
Simple or Detailed
Trade-off
Section 8 Energy
Performance Path
Envelope
Meets
NECB
Building
Meets
NECB
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National Energy Code for Buildings 2015
Prescriptive
Simple or Detailed
Trade-off
Section 8 Energy
Performance Path
Envelope
Meets
NECB
Building
Meets
NECB ***NEW***
Energy Utilization
Index Path
Questions?
ASHRAE Building EQ
• Building Energy Quotient Program
• Resources for Policy Makers
• Pilot released in 2009
• Fully released in 2012
http://buildingeq.com/
AIA Architecture 2030
Reporting