SC 10-16-2019 PresentationGreen Building Reach Code
Community Workshop
October 16, 2019
City of Cupertino Sustainability Commission
6:00pm Welcome Councilmember Rod Sinks
6:10pm Introduction Meera Ramanathan & Vignesh
Swaminathan, Reach Code Subcommittee
Co-Chairs
6:25pm Climate Action + Andre Duurvoort, Sustainability Manager
Reach Code Background
6:45pm Green Building + Walker Wells, Raimi + Associates
Reach Code Opportunities
8:00pm Closing + Next Steps Andre Duurvoort, Sustainability Manager
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Agenda
7:15pm Tabletop Discussions + Report Out
Considerations for Today
What is important for our environmental and climate action goals?
What are the financial/safety/environmental benefits and who realizes them?
What is the scope and applicability of the reach code?
How does this reach code impact construction and consumer costs?
Welcome!
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Why is a reach code right for Cupertino?
Climate Action + Background
•Why: Part of the Sustainability Commission
work program
•Scope:new construction at time of
building permit application
•Questions:
•How can the reach code best support
the Climate Action Plan?
•How to best mitigate climate impact of
development for next 3 years
Green/electrification reach codes
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•“Reach” beyond the base building code
•Support community priorities (CAP)
•Includes additional requirements, such as:
•Energy/water efficiency
•Electric vs. fossil fuels
•EV charging infrastructure
•Solar PV
•Construction waste management
What is a local reach code?
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Cupertino community emissions rate (draft)
•Total emissions decreased 24% since 2010
•Electricity emissions decreased 95% since 2010
•Natural gas and transportation growing as percentage
of total emissions
Transportation Transportation Transportation
Natural Gas Natural Gas Natural Gas
Electricity
Electricity Electricity
Off-Road
Off-Road
Off-Road
Wastewater
Wastewater
Wastewater
Solid Waste
Solid Waste
Solid Waste
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
2010 2015 2018Emissions (MT CO2e)2020 Emissions Reduction
Target: 287,870 MT CO2e
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Cupertino community emissions forecast
•As of 2018, emissions are 24% below 2010 levels
and the 2020 target has been achieved
•Emissions with State policies are projected to be 32%
/ 26% below 2010 by 2035/2050
•Additional emissions reductions will be needed
to achieve Cupertino’s 2035 and 2050 targets
(49% / 83% below 2010)
309,488
355,791
231,787
249,812258,659
172,723
57,574
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
2010 2015 2020 2025 2030 2035 2040 2045 2050Total Emissions (MT CO2e)Additional emissions
reduction needed to
achieve target
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Statewide Reach Codes
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San Jose
Electric Preferred
Menlo Park
All-Electric + Solar PV
Berkeley
Natural Gas Ban
Walker Wells
Green Building + Reach
Code Opportunities
Green Building Trends
State Climate Goals
•SB 350 –Double energy efficiency for natural gas and electricity use
•AB 802 –Building energy use benchmarking and disclosure
•AB 3232 –Requires the CEC to create a plan by 2021 to reduce building sector emissions by 40% below 1990 levels by 2030
•Health and equity co-benefits
2019 Reach Code Trends
•Solar installations
•All-electric buildings
•Increased energy and water efficiency
2022 Code Cycle
•ZNE standard for buildings
•All-Electric Buildings
2030 Long-Range Goal of Net Zero for all Buildings
California
Emissions
Reduction Goals
(from 1990 levels)
40% by 2030
80% by 2050
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Base 2019 CALGreen Code
Current Cupertino Green Building Program
Energy Efficiency Reach Code
(CALGreen Tier 1)
Green Building Potential
Improved PerformanceAll-Electric
Reach Code
Current Baseline
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Cupertino’s Green Building Program
Project Type Minimum Green Building Requirement Required Verification
Residential
Single Family and Multi-family homes
equal to or less than 9 homes
CALGreen Building Code in accordance
with CALGreen’s minimum thresholds
City Review
Single Family and Multi-family homes
equal to or greater than 9 homes
•GPR certified at min. 50 pts or
•LEED Silver
•Alternate Reference Standard per
Section 101.10.2
•Third Party GPR or LEED
certification as applicable
•Alternate Reference Standard
Nonresidential
Small: less than 25,000 SF CALGreen Building Code City Review
Mid-size: 25,000-50,000 SF •LEED Certified or
•Alternate Reference Standard per
Section 101.10.2
•Third Party GPR or LEED
certification as applicable
•Alternate Reference Standard
Large: greater than 50,000 SF •LEED Silver or
•Alternate Reference Standard per
Section 101.10.2
•Third Party GPR or LEED
certification as applicable
•Alternate Reference Standard
New Construction
Proposed Reach Code Requirements
Energy
Mixed Fuel Buildings
Prepare for future conversion of gas appliances to electric:
1.Electric-Ready Water Heating
2.Electric-Ready Space Heating
3.Electric-Ready Cooktop
4.Electric Ready Clothes Drying
Performance approach compliance:
All-Electric buildings meet code.
1.Energy Efficiency Design Rating of Proposed Design
Building is no greater than that of the Standard Design
Building
2.Total Energy Design Rating for Proposed Design Building
is 10 points less than that of the Standard Design
Building
3.Mixed-fuel buildings may not follow the prescriptive
compliance approach
4.Certificate of Compliance must be completed by a
Certified Energy Analyst (CEA) for all buildings
All-Electric buildings meet code.
CALGreen Tier 2
All Buildings
A4.1 Planning and Design
1.Topsoil protection and reuse (A4.106.2.3)
2.30% of total parking, walking, or patio surfaces shall be
permeable (A4.106.4)
3.Cool Roof (A.106.5)
4.Select 4 Elective Measures
A4.3 Water Efficiency and Conservation
1.Plumbing fixtures and fittings shall comply with (A4.303.1)
2.Metering faucets shall not deliver more than 0.2 gallons per cycle
(A4.303.1.4.3)
3.Developments shall comply with Cupertino’s Water Efficient
Landscape Ordinance (MWELO)
4.Select 3 Elective Measures
A4.4 Material Conservation and Resource Efficiency
1.25% cement foundation mix design reduction (fly ash, slag, etc.)
(A4.403.2)
2.15%Recycled Content Value (RCV) (A4.405.3)
3.75%diversion of C&D debris (A4.408.1)
4.Select 4 Elective Measures
A4.5 Environmental Quality
1.100%of resilient flooring shall be low VOC (A4.504.2)
2.Thermal insulation shall be low VOC and have no-added
formaldehyde (NAF) (A4.504.3)
3.Select 1 Elective Measure
Residential New Construction
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Proposed Reach Code Requirements
Energy
Mixed Fuel Buildings
Prepare for future conversion of gas appliances to electric:
1.Electric-Ready Water Heating
2.Electric-Ready Space Heating
3.Electric-Ready Cooktop
4.Electric Ready Clothes Drying
Performance approach compliance:
1.Energy Compliance Margins:
2.Mixed-fuel buildings may not follow the prescriptive compliance approach
3.Certificate of Compliance must be completed by a Certified Energy Analyst (CEA) for all buildings
All-Electric buildings meet code.
CALGreen Tier 2
All Buildings
A5.1 Planning and Design
1.12% total spaces for fuel-efficient vehicles (A5.106.5)
2.Cool Roof (A.106.5)
3.Select 3 Elective Measures (out of 11)
A5.3 Water Efficiency and Conservation
1.20%reduction in baseline water use (A5.303.2.3)
2.Select 3 Elective Measures (out of 10)
A5.4 Material Conservation and Resource Efficiency
1.15% Recycled Content Value (RCV) (A5.405.4)
2.80%diversion of C&D debris (A5.408.3)
3.Select 3 Elective Measures (out of 14)
A5.5 Environmental Quality
1.100% of resilient flooring shall be low VOC and FloorScore or
GREENGUARD certified (A5.504.4.7.1)
2.Thermal insulation shall be low VOC and have no-added
formaldehyde (NAF) (A5.504.4.8.1)
3.Select 3 Elective Measures (out of 15)
Nonresidential New Construction
Occupancy Type Compliance
Margins
Office Building 10%
Retail 10%
Hotel/motel and High-rise Residential 5%
Industrial/Manufacturing 0%
All other Nonresidential Occupancies 5%
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Cost Effectiveness of Increased Energy Efficiency
CEC Cost Effectiveness = Measure pays for itself in savings over the course of its lifetime.
CALGreen Tiers 1 + 2 determined to be cost-effective as part of 2019 California Building
Standards Code adoption process.
Based on modeling using State-approved compliance software, all new construction in
Cupertino is projected to meet a Tier 1 energy reach code by including a combination of
building envelope and/or systems measures.
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Building Envelope Building Systems
Window Glazing HVAC
Roof Insulation Pumps + Fans
Wall Insulation Hot Water Heater
Window Overhang Lighting
Residential Electrification Cost Considerations
Avg. Capital cost savings: $3,000-$10,000/dwelling unit
Avg. Lifecycle Savings: $330/year
Source: E3 Residential Building
Electrification in California 17
Single Family Low-Rise Multi-Family
Nonresidential Electrification Cost Considerations
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Medium Office Medium Retail Small Hotel
Incremental Cost
Savings $2,363 $17,327 $1,263,932
For nonresidential new construction:
Incremental cost of all-electric design with energy efficiency measures and
federal minimum appliance efficiencies.
Savings are likely the result of not installing natural gas service.
Source: CEC 2019 Nonresidential
New Construction Reach Code Cost
Effectiveness Study
1.Single Family Home –New Construction & Remodel
2.High-Rise Mixed-Use New Construction
3.Office & Hotel New Construction
4.Electric Vehicle Readiness
5.City Processes –Outreach, Verification, Incentives
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Tabletop Discussion Topics
Next Steps
•Public outreach event –October 16
•Publish draft ordinance –Late October
•Stakeholder outreach –ongoing
•Sustainability division staff report –TBD
•1st Council reading –November 19th
•2nd Council reading –December 3rd
•Implementation begins –early 2020
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Questions?
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