Reach Code Basics Building Model Codes EV Model Codes City Actions GHG Emissions Savings Revision History DATE BY EDITS Aug 1 BH Version 1 Aug 28 RR Corrected EV reference in summary MUD EV Ready for all units not spaces added subtitle sections and reordered building slides for ID: 777912
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Slide1
Building Reach Codes
Advancing safer, healthier and more affordable buildings
Reach Code Basics
Building Model Codes
EV Model Codes
City Actions
GHG Emissions Savings
Slide2Revision History
DATE BY EDITS
Aug 1 B.H. Version 1
Aug 28 R.R. Corrected EV reference in summary (MUD EV Ready for all units not “spaces”), added subtitle sections and reordered building slides for clarity, added infographic and UC study cost info, slide 6: clarified language, slide 20: added “2019” to column, slide 33: removed confusing reference to “EV Capable being more extensive”, other minor
fmt
Slide3I. Reach Code Introductory Slides
What are Reach Codes
Benefits
Model Code Summary
Partners for project
Timeline
Slide4Local enhancements to state code
Adopted with current building code cycle
Current PCE initiative aimed at improved economic and energy performance
Addresses:
Building electrification – reduced use of natural gas (methane) and associated emissions
Electric vehicle (EV) charging – increased EV readiness
What
are Reach Codes?
Slide5Major economic value for residents now and prevents expensive future retrofits
Safer and healthier homes – no combustion
Enables greater EV adoption
Fiscal prudence – more cost effective to address at new construction
Advance climate goals
Benefits
of Reach Codes
Slide6Model Code Summary
Code Element
Approach
Building Electrification
Provides 2 tracks for developers: All-Electric or Mixed-Fuel
All-Electric (preferred) is less expensive, delivers more benefit
Mixed-Fuel allows natural gas but has higher efficiency requirementsDetails vary by building segment
Electric Vehicle Readiness
Provides “plug and play” access to vehicle charging
Single family: Level 2 (dryer outlet power) and Level 1 (standard 110v outlet)
Multi-unit dwellings: one “EV Ready” space per unit*
Office: 10% Level 2, 10% Level 1, and 30% EV Capable
Other Commercial: 6% Level 2 installed and 5% Level 1 installed
PCE will provide funding support for affordable housing to address EV measures
Slide7Lead consultant
Technical support
Facilitation support
Regional partner
Cost benefit approvals
Project Partners
Slide8Last September, Everything Changed
SB-100
All electricity is carbon free by 2045
Executive Order B-55-18
Carbon neutral by 2045
Slide9Reach Code Timeline
Date/Timeframe
Activity
Dec. 2018
PCE, SVCE and County of San Mateo initiate reach code initiative
January
Reach Code kickoff event for city staff
February
Statewide Cost-Effectiveness study
March
Building Reach Code Workshops
April 11 and 24
Draft Model Reach Codes Measures available
April & May
City-specific stakeholder engagements
15-May
Last input into model code measures
June
Model reach code language shared
June through August
Outreach and
adoption technical assistance
July through October
City Councils vote on desired reach codes (depends on City’s workplan)
August through October
Submit Code Packet for CEC approval
January 1, 2020
Potential for reach code to go into effect at the same time as state code update
2020-2022
Opportunities to adopt reach code throughout three year code cycle, PCE and County to provide training and support for code implementation
Slide10Guiding Principles for Reach Codes
10
Preserve a low cost compliance option to minimize impact on construction costs
Encourage development of healthier, safer, lower emission buildings
Reflect the values of our community
Leaders in EV, solar and battery adoption rates nationwide
Slide11Key Terms
11
All-Electric -
buildings using electricity for space and water heating systems
Mixed Fuel
– buildings using natural gas for space and water heating systems
Compliance Margin
– how much more energy efficient than code minimum can be done in a cost effective manner, typically expressed as a percentage (e.g. 5% compliance margin)
Performance Pathway
– exceed code by a certain compliance margin using CEC-approved modeling software (e.g. 5%)
Prescriptive Pathway
– exceed code by including a list of specific cost-effective measures (e.g. drain heat recovery or batteries), see appendix for examples.
Climate Zone
– San Mateo county is located within Climate Zone 3. Santa Clara county is mostly Climate Zone 4, with a small portion in Climate Zone 3.
Slide12Cost and GHG Comparisons
2019 T24 Code basics
EDR
Prescriptive vs Performance Pathways
Building Model Code Language
II. Building Model Code Details
Slide13University of California- All-Electric New Construction
2017 Study
Slide14Slide15Why a Reach Code?
15
Sq
Ft
CO
2
per year
Units per year
Years in Service
Years in Code Cycle
Total Avoided CO
2
*
Single Family
2,700
2 tons
X
100
X
50
X
3
=
30,000 tons
Multi-Family
1,000
1 ton
X
10,000
X
50
X
3
=
1,500,000 tons
Office
100,000
120 tons
X
20
X
30
X
3
=
2,160,000 tons
Miles per Year
CO
2
per year
EV’s added per year
Years in Service
Years in Code Cycle
Total Avoided CO
2
Car
12,000
5 tons
X5,000X10X3= 750,000 tons
*CO
2
impacts reflect carbon-free electricity, currently met by SVCE while PCE’s goal is GHG free by 2021
What if new buildings and vehicles were powered by clean electricity during this 3-year code cycle?
Slide16GHG Comparison
Mixed fuel / All electric 2017 / All Electric 2030 grid
Slide172019 State Code Basics (Title 24 Chapter 6)
Slide18What’s already included in the 2019 Code
18
Prewiring of all homes for future electric heat water heater
Solar PV sized to cover the electric loads associated with a mixed-fuel home
Use of Energy Design Rating (EDR) for all residential energy models
A minimum quantity, level, and readiness of EV charging infrastructure for residential, multi-family, and non-residential building types.
Residential
Non-Res
Performance Compliance Margin
Energy Design Rating (EDR)
Percentage
Solar Photovoltaics (PV) Installation
Sized to offset annual kWh consumption of mixed-fuel
n/a
Electric-ready
120V/20A for future electric water heater installation
n/a
Slide19What is EDR?
In California codes have shifted from what was being called zero net energy to the
Energy Design Rating
, or “EDR”. EDR allows for a range of energy performance, rather than simply targeting zero, as in Zero Net Energy.
The EDR measurement is the
sum of an efficiency score and an overall score
. The efficiency score is based on measures such as insulation, windows, and envelope efficiency. The overall score factors in things like onsite renewable energy and fuel sources.A building with a score of zero (or less) has maximized energy efficiency and most likely added on-site renewable generation such as rooftop solar.
An EDR of Zero is equal to
Zero Net Energy
or Zero Energy.
Zero or less is most easily achieved by an all-electric building design. A higher EDR score would indicate a less efficient building.
Slide20Mandatory + Reach Code Options for New Construction, Additions, Alterations
Item
2019 Code Reads
Reach Code Reads
Water Heating
120V/20A circuit
240V/30A circuit
*
Condensate drain
Clothes Drying
-
240V/40A circuit
*
Cooking
-
240V/50A circuit
*
Space Conditioning
-
-
Reach Code Optional Requirements
Item
Reach Code Option
Solar (PV) installed
Require PV (non-residential only)
Performance documentation
Encourage building simulation and compliance forms by certified energy analysts (must include definition of what meets certified standard)
Optional add-on to Reach Code
Location/design addressing air source and footprint
240V/30A circuit*
*or adequate capacity
Options
are formatted in green highlights
Slide21Building Electrification Reach Codes by Building TypePerformance and Prescriptive Paths
Slide22Buildings Pathways: Performance or Prescriptive
22
Compliance Margin(s) equal to or better than Title 24 code for buildings based on fuel types
What is required for All-Electric Buildings (ex. 0% better than T24)
What is required for Mixed Fuel Buildings (ex. Reach code 10% better than T24)
Pathways for a builder to meet certain EDR requirements
Performance – use modeling software to show the proposed building meets or exceeds the compliance margin (%) established in the reach code, OR
Prescriptive – install from a list of specific technologies as defined within the reach code
Slide23Single and Two-family New Construction
23
Performance Path
Prescriptive Path
1. All Electric.
Demonstrate that the proposed home will be all electric, OR
Build All Electric.
Meet 2019 Title 24 Part 6.
2. Mixed Fuel Building.
Proposed Design Building shall be at least
10 EDR points less
than the Total Energy Design Rating calculated for the Standard Design Building, OR
Mixed Fuel Building
a. Low leakage ducts
b. R-10 perimeter slab insulation
c. Compact hot water distribution
d. Fan efficacy of 0.35 Watts/cfm
e. Either 1) 5 kWh battery OR 2) A solar water heating system.
2A. Electrically Heated
Building
(electric space and water heating, gas cooking and/or clothes drying). Proposed Design Building shall be at least
2 EDR points less
than the Energy Efficiency Design Rating calculated for the Standard Design Building, OR
Electrically Heating Building
a. Low leakage ducts.
b. R-10 perimeter slab insulation.
c. Compact hot water distribution.
d. Fan efficacy of 0.35 Watts/cfm.
“Menu options” are formatted with green highlights
1 + 2 OR
1 + 2 + 2A
Slide24Multifamily New Construction (≤3 stories)
24
Performance Path
Prescriptive Path
1. All Electric.
Demonstrate that the proposed home will be all electric, OR
Build All-Electric
and Meet
2019 Title 24 Part 6.
2. Mixed Fuel Building.
Proposed Design Building shall be at least
10 EDR points less
than the Total Energy Design Rating calculated for the Standard Design Building, OR
Mixed Fuel Building
a. low leakage ducts in conditioned space b. 0.25 ASR cool roof c. R-10 slab insulation d. compact Hot Water distribution e. 0.35 W/cfm HVAC fan
d. Either 1) 2.75 kWh battery/dwelling OR 2) A solar water heating system.
2A. Electrically Heated
Building
(electric space and water heating, gas cooking and/or clothes drying). Proposed Design Building shall be
less
than the Energy Efficiency Design Rating calculated for the Standard Design Building
Electrically Heated Building
Meet 2019 Title 24 Part 6
“Menu options” are formatted with green highlights
1 + 2 OR
1 + 2 + 2A
Slide25Nonresidential
25
Performance Path
Prescriptive Path
1. All Electric.
Demonstrate that the proposed building will be all electric, OR
Build All Electric
and
meet 2019 Title 24 Part 6.
2. Mixed Fuel Building, All Occupancies.
Demonstrate that the energy use of the proposed building is
9% more efficient
than the 2019 State Energy Code, OR
Mixed Fuel Building
a. Fenestration with a solar heat gain coefficient ≥ 0.22.
b. Airflows to be equal to the zone ventilation minimums.
c. Economizers in air handlers ≥ 33,000 Btu/h
d. Reduced the lighting power density (Watts/ft2) by ten percent (10%)
e. In common areas, improve lighting: 1) Daylight dimming plus off AND 2) Institutional Tuning
f. Install drain water heat recovery.
2A. Mixed Fuel Building, Office and Mercantile.
Demonstrate that the energy use of the proposed building is
15% more
efficient than the 2019 State Energy Code
Mixed Fuel Building
a. Fenestration with a solar heat gain coefficient ≥ 0.22.
b. E/W fenestration area is < ½ of the N/S fenestration.
c. Airflows to be equal to the zone ventilation minimums.
d. Economizers in air handlers ≥ 33,000 Btu/h
e. Reduced the lighting Watts/ft
2
by 10%
f. Improve lighting: 1) Daylight dimming plus off AND 2) Institutional Tuning AND 3) Occupant sensing in open plan offices
1 + 2 + 2A
1 + 2 OR
Slide26Residential : Single Family
26
* Based on 2,000
sq
ft house
Electric
Pathway
+
Mixed Fuel
Pathway
Option 1
or
Mixed Fuel
Pathway
Option 2 (Higher Efficiency)
Compliance Margin
0%
17% (CZ3)
14% (CZ4)
29% (CZ3)
25% (CZ4)
Estimated Increased* Construction Cost
$0
$ 6,800 (CZ3)
$ 6,800 (CZ4)
$10,000 (CZ3)
$10,000 (CZ4)
Emissions Penalty
0%
+60% (CZ3)
+70% (CZ4)
+50% (CZ3)
+50% (CZ4)
Indoor Air Quality
Best
Worst
Modest
Equipment Utilized
All Electric appliances and systems, no CO monitor
Gas connection, gas meter, gas furnace and water heater. CO monitor required, enhanced energy efficiency. Plus electrical wiring to all gas appliances
Same as Mixed Fuel Option 1, plus Batteries or Solar Thermal (or equivalent)
Select Option 1 or Option 2
to be
paired with the Electric Pathway
Slide27Residential : Multi-Family
27
Select Option 1 or Option 2
to be
paired with the Electric Pathway
Electric
Pathway
+
Mixed Fuel
Pathway
Option 1
or
Mixed Fuel
Pathway
Option 2 (Higher Efficiency)
Compliance Margin
0%
5% (CZ3)
8% (CZ4)
10% (CZ3)
15% (CZ4)
Estimated Increased Construction Cost
$0
+$2,500 (CZ3)
+$2,650 (CZ4)
+$4,200 (CZ3)
+$4,350 (CZ4)
Emissions Penalty
0%
+62% (CZ3)
+62% (CZ4)
+46% (CZ3)
+46% (CZ4)
Indoor Air Quality
Best
Worst
Modest
Equipment Utilized
All Electric appliances and systems, no CO monitor
Gas connection, gas meter, gas furnace and water heater. CO monitor required, enhanced energy efficiency. Plus electrical wiring to all gas appliances for future switch to electric
Same as Mixed Fuel Option 1, plus Batteries or Solar Thermal (or equivalent)
Slide28Non-Res : Office/Retail
28
Electric
Pathway
+
Mixed Fuel
Pathway
Option 1
or
Mixed Fuel
Pathway
Option 2 (Higher Efficiency)
Compliance Margin
0%
5%
15% (CZ3)
14% (CZ4)
Estimated Increased* Construction Cost
$0
+$50,000 (CZ3)
+$45,500 (CZ4)
+$68,000 (CZ3)
+$71,000 (CZ4)
Emissions Penalty
0%
+62% (CZ3)
+62% (CZ4)
+46% (CZ3)
+46% (CZ4)
Indoor Air Quality
Best
Worst
Modest
Equipment Used
All Electric appliances and systems.
Gas connection, gas meter, gas furnace and water heater. CO monitor required, enhanced energy efficiency. Plus electrical wiring to all gas appliances for future switch to electric
Gas connection, gas meter, gas furnace and water heater. CO monitor required, enhanced energy efficiency. Plus electrical wiring to all gas appliances for future switch to electric.
* For a building of similar size as modeled
Select Option 1 or Option 2
to be
paired with the Electric Pathway
Slide29EVCI Cost Retrofit vs. New
Terms and Rates
Codes
III. EV Model Codes
Slide30EVCI – Cost of New vs Retrofit
30
EV Capable
EV Ready
EV Capable
EV Ready
EV Capable
EV Ready
Investing in EV infrastructure
during
new construction
saves 40-400%
of costs compared
to retrofitting it later.
Slide3131
Level 1 “Trickle Charging”
S
tandard household outlet 15-20 Amp, 120v AC
Driving distance provided: 3-4 miles/hour
Key Terms: EV Infrastructure
EV Terms, Charge Rates
Level 2 “Standard Charging”
Equivalent to a dryer outlet. 4
0+ Amp, 208/240v AC
Driving distance provided (standard charging): 25-30 miles/hour
Level 3 “DC Fast Charging /
SuperCharging
”
24-350kW
Driving distance provided 72-1,200 miles/hour
Slide3232
Key Terms: EV Infrastructure
EV Terms, Readiness of Charging
Station
EV
Capable
-
Some Assembly Required
Panel
capacity
, raceway (
conduit
) only at critical areas (underground, pinch points, etc.) Definition is less stringent than
CALGreen
2019
EV
Ready
-
Plug & Play
Panel
capacity
,
raceway (
conduit
), overcurrent
protection
device (
breaker
),
wire
,
receptacle
& signage.
Can refer to Level 1 or Level 2
EV
Charging Station
(EVCS)
-
Level 2 Charge!
Charging station fully installed
. All the equipment needed to deliver electrical energy from an electricity source to the EV at Level 2
ELECTRIC
VEHICLE
OUTLET
Slide33Single and Two-family New Construction
2016
CALGreen
2019 CALGreen
PCE/SVCE Proposed
Mandatory
Mandatory
Single Family
Two-Family
Townhome
(1) Level 2 EV Capable for one parking space per dwelling unit
2 EV spaces total:
1 Level 2 EV Ready circuit
1 Level 1 EV Ready circuit
ELECTRIC
VEHICLE
OUTLET
Slide34Multifamily New Construction
2016 CALGreen
2019 CALGreen
PCE/SVCE Proposed
Mandatory
Mandatory
Multi-Family
3%
10%
25%
75%
≤20
dwelling units
>20
dwelling units
100%
ELECTRIC
VEHICLE
OUTLET
3
%
Level 2 EV Capable for buildings with ≥17 units
10%
Level 2 EV Capable
≤20 units: One Level 2 EV Ready
per dwelling
>20 units: Of all dwelling units,
25%
Level 2 EV Ready (10% in affordable housing)
75%
are Level 1 EV Ready (90% in affordable housing)
Slide35Non-Residential, Office & Commercial
2016 CALGreen
2019 CALGreen
PCE/SVCE Proposed
Mandatory
Mandatory
Non-Residential
Over 100 spaces: option for 80kW DC Fast Charger per 100 spaces
ELECTRIC
VEHICLE
OUTLET
6%
Level 2 EV Capable
(for buildings with at least 10 parking spaces)
Office building:
10%
Level 2 EVSE
10%
Level 1 EV Ready
30%
EV Capable or EV Ready
Commercial: Of all parking spaces,
6%
Level 2 EVSE
5%
Level 1 EV Ready
Slide36What steps to take
What are other cities doing
Outreach Materials & Tools
Contacts
IV. City Actions
Slide37City Manager to submit Letter of Intent for $10,000 grant for reach code adoption and implementation support
Direct staff to review materials, meet with consultants, and work on customizing model code language
Calendar Council review and action
Action for City
XXX
Slide38Participation to-date by Agency
Slide39Implementation & Adoption Resources
Resources & Tools in Development
Case Studies
Website
Homeowner Flyer
FAQs
Trainings
Cost Effectiveness Presentation Tool
Carbon Emissions Savings
Ordinance Language, Staff Report
PPTs
Slide40Building staff/permit Tools & Resources
Permitting, enforcement, and inspection resources
Permit Checklist
Inspection Checklist
Training for Building Department Staff
FAQs
Slide41V. GHG Emission Reductions
Slide42Slide43Slide44Slide452,100 Square Foot Single Family Home
45
Key Takeaways
High carbon savings of electrification
This improves with time, looking to 2030
If gas leaks are considered, mixed fuel emissions increase
Slide462,700 Square Foot Single Family Home
46
Slide476,960 Square Foot Multi-Family Home
47
Slide48Office
48
Slide49Hotel
49
Slide50Retail
50
Slide51Website:
www.PeninsulaReachCodes.org
Contact: Rafael Reyes
Director of Energy Programs
rreyes@peninsulacleanenergy.com
(650) 260-0087Rachael Londer, Resource Conservation Specialist County of San Mateo rlonder@smcgov.org (650) 363-4077 Contact
Slide52Thank you!