2018-05-17 WAEE Expo-New Wisconsin Energy Code What it ... - Active... · $)),/,$7(' (1*,1((56 ,1&...
Transcript of 2018-05-17 WAEE Expo-New Wisconsin Energy Code What it ... - Active... · $)),/,$7(' (1*,1((56 ,1&...
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AFFILIATED ENGINEERS, INC.
2018 Wisconsin Energy Efficiency ExpoHosted by the Wisconsin Association of Energy Engineers
New Wisconsin Energy Code:What it Means for Me?May 17, 2018
Shana Scheiber, PE, LEED AP ID+C, WELL AP
Building Performance Consultant
Affiliated Engineers, Inc.
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AFFILIATED ENGINEERS, INC.
Affiliated Engineers, Inc.
AEI’s Vision / Confronting challenges facing society, with insight and innovation.
Offices in theU.S. and U.K. EMPLOYEES16 640
LEED®
PROJECTS
233
STRATEGIC PLANNING + INNOVATION DESIGN + PROVEN PERFORMANCE
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AFFILIATED ENGINEERS, INC.
Objectives
• Understand Why Energy Code Exists• USA• Wisconsin
• History Lesson• Awareness of Impacts• Comparison of Old and New Wisconsin Code
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AFFILIATED ENGINEERS, INC.
US Energy Consumption by Sector
https://www.eia.gov/totalenergy/data/monthly/#consumption
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AFFILIATED ENGINEERS, INC.
US Commercial Sector Energy Consumption By Utility
https://www.eia.gov/totalenergy/data/monthly/#consumption
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AFFILIATED ENGINEERS, INC.
Wisconsin Energy Consumption by Sector
Reduce Energy Impact of Buildings• 1,775 Trillion Btu of energy
consumed in Wisconsin annually
• Buildings account for 43% of total energy consumption in Wisconsin
WI Energy Consumption by Sector (2015)Source: https://www.eia.gov/state/print.php?sid=WI
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AFFILIATED ENGINEERS, INC.
What Drives Energy Targets and Requirements?
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AFFILIATED ENGINEERS, INC.
Current Status of Energy Code Adoption
http://www.energycodes.gov/status-state-energy-code-adoption
As of 5/9/2018
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AFFILIATED ENGINEERS, INC.
National Energy Code Development
• 1973: Energy crisis of 1973• 1974: California enacts appliance
efficiency standards• 1975: Energy Conservation and
Production Act (ECPA) • 1987: National Appliance Energy
Conservation Act• 1992: Energy Policy Act of 1992
(EPACT 1992) • 2005: Energy Policy Act of 2005
(EPACT 2005) • 2007: Energy Independence and
Security Act of 2007 (EISA 2007)
• 1975: The first version of ASHRAE 90.1 (90-1975)
• 1989: ASHRAE 90.1-1989• 2004: ASHRAE 90.1-2004• 2007: ASHRAE 90.1-2007• 2010: ASHRAE 90.1-2010• 2013: ASHRAE 90.1-2013• 2014: The first version of ASHRAE
189.1 • 2016: ASHRAE 90.1-2016
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AFFILIATED ENGINEERS, INC.
Wisconsin Commercial Energy Code DevelopmentEffective Milestones
• Jul 1, 1978: Department of Commerce (COMM) Chapter 63, regulates multi-family & commercial
• Jul 1, 2002: 2000 IECC with WI amendments
• Mar 1, 2008: 2006 I-codes for commercial buildings with WI amendments
• Sep 1, 2011: 2009 IECC adopted, COMcheck acceptable
• May 1, 2018: 2015 IECC adopted, COMcheck acceptable
• April, 2018: Wisconsin Amendments to 2015 IECC adopted
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Estimated Energy Impact of Wisconsin Code Update
0
20
40
60
80
100
120
2009 IECC 2012 IECC 2015 IECC
Ener
gy U
se In
tens
ity [k
Btu/
SF/y
r ]Impact of Skipping a Code Cycle
15%32%
15% 20%
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AFFILIATED ENGINEERS, INC.
2015-IECC ASHRAE 90.1-2013
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The Path to Energy Code Compliance
Mandatory Requirements
Regulated Building SystemsEnvelopeHVACPowerLightingService Hot Water
Prescriptive Options
Compliance
Energy Model
Both work for IECC and ASHRAE 90.1
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AFFILIATED ENGINEERS, INC.
Energy Model Options
2015-IECC ASHRAE 90.1-2013
Energy code compliance performance path
Section C407 Total Building Performance
Chapter 11: Energy Cost Budget Method
Quantifying savings beyond energy code compliance
Appendix G: Performance Rating Method
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AFFILIATED ENGINEERS, INC.
Energy Code in Wisconsin
LEED 2009 ASHRAE 90.1-2007 Appendix G
LEED v4 ASHRAE 90.1-2010 Appendix G
Old WI state Code 2009-IECC or ASHRAE 90.1-2007 + WI amendments
Focus on Energy Design Assistance ASHRAE 90.1-2007 Appendix G
New WI State Code 2009-IECC or ASHRAE 90.1-2007 + WI amendments
New Focus on Energy Design Assistance ASHRAE 90.1-2013 Appendix G??
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AFFILIATED ENGINEERS, INC.
ASHRAE Climate Zones
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Envelope-Mandatory• Continuous air barrier• air leakage requirements
Envelope-Prescriptive• Envelope improvements• Skylight % of roof • Prioritization of south facing glazing
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
HVAC
Optimized VAV system is required!Compliance can not be met by selecting compliant equipment!!!
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
HVAC Mandatory• New regulated equipment• Demand control ventilation for more spaces
• required when >=25 people per 1000SF
• Optimized fan controls • DDC requirements and controls• Insulation requirements for
steam, HHW & CHW• Duct sealing requirements
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 ChangesHVAC Prescriptive
Operating Less than 8000 Hours per Year
Operating Greater than 8000 Hours per Year
Exhaust air energy recovery required for more climate zones and lower airflows
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
HVAC Prescriptive continued…• Equipment improvements• New equipment included in standard• Economizers • Controls
• Simultaneous heating/cooling limitations • Reheat DT limits for overhead systems• Supply air temperature reset• Pump speed differential pressure reset• Heat rejection equipment • Auto HVAC shut of when door opens• Fan modulation
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
HVAC Prescriptive continued…• Fans
• efficiency improvements• Optimize static pressure sensor (for reset)• ECMs for motors 1/12- 1hp• Fan HP allowance adjustments
• Boiler turndown • Chiller and boiler isolation requirements• Chilled water pipe sizing• Hot gas bypass Limits• Laboratory Exhaust• Kitchen Exhaust
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Service Water Heating-Mandatory• ~0-3% Performance requirement
increases for Water Heating Equipment
Service Water Heating-Prescriptive• High-Capacity (>1 MMBtuh)
Service Water Heating Systems -Minimum thermal efficiency of 90%
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Power Mandatory• Low voltage dry-type
distribution transformers• Automatic receptacle controls • Electrical Energy metering and
documentation requirements
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Mandatory Lighting Requirements• Daylighting• Controls
• Occupancy-based everywhere• Manual-on everywhere• Bilevel • Scheduled shutoffs for most space types
• Exterior lighting • Controls: daylighting & time clock• limits are based on night activity
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Lighting-Prescriptive• ~10-30% LPD reduction (varies by building and space type)
Building Type 2007 2013
Health-care clinic 1.0 0.9
Hospital 1.2 1.05
Hotel 1.0 0.87
Manufacturing 1.3 1.17
Multifamily 0.7 0.51
Office 1.0 0.82
Parking Garage 0.3 0.21
Retail 1.5 1.26
School/University 1.2 0.87
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Other Equipment-Mandatory• Electric motor regulations• Energy Monitoring
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Chapter 11-Energy Cost Budget Method• Service hot water• Unmet load hours • Kitchen exhaust systems • Min flow setpoints• Supply air temp reset• Heat rejection design sophistication • Fan speed controls
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1-2013 Changes
Appendix G – Performance Rating Method• % fenestration based on building area
type• Baseline HVAC systems• Service hot water • Ventilation changes:
• Credit allowed for improved ventilation efficiency
• Penalty for over ventilating• Unmet load hours• Heat recovery per prescriptive• Purchased utility pump power• Min flow setpoints reduced
Building Type Baseline Gross Above-Grade
Wall Area
Health-care outpatient
21%
Hospital 27%
Office ≤ 5000 SF 19%
Office 5000 to 50,000 SF
31%
Office > 50,000 SF 40%
School (primary) 20%
School (secondary & University)
22%
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AFFILIATED ENGINEERS, INC.
ASHRAE 90.1 Future
Where do we go from here?
0%
10%
20%
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2004 2007 2010 2013 2016 2019 2022 2025 2028 2031 2034 2037
Regu
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d Bu
idlin
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vs A
SHRA
E 90
.1-2
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ASHRAE 90.1 Building Target
Possible Path to nearly Net Zero Buildings
Equipment Level Limit
MaxTech Limit Full Load Efficiency
Systems Approach &Renewable Energy
Chart is an estimate of possible future regulations to achieve Near Net Zero by 2034 based on studies done by Carrier on technical limits of HVAC equipment
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AFFILIATED ENGINEERS, INC.
Final Thoughts
• Design teams to plan for code compliance path early in design
• Many projects will require an energy model for code compliance
• More sustainable technologies will be required to meet code and rating targets
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AFFILIATED ENGINEERS, INC.
Shana Scheiber, PE, LEED AP ID+C, WELL AP
Building Performance Consultant
Affiliated Engineers, Inc.
THANK YOU
QUESTIONS?