Building Reach Codes Advancing safer, healthier and more affordable buildings - PowerPoint Presentation

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

Slide2

Revision 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

Slide3

I. Reach Code Introductory Slides

What are Reach Codes

Benefits

Model Code Summary

Partners for project

Timeline

Slide4

Local 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?

Slide5

Major 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

Slide6

Model 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

Slide7

Lead consultant

Technical support

Facilitation support

Regional partner

Cost benefit approvals

Project Partners

Slide8

Last September, Everything Changed

SB-100

All electricity is carbon free by 2045

Executive Order B-55-18

Carbon neutral by 2045

Slide9

Reach 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

Slide10

Guiding 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

Slide11

Key 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.

Slide12

Cost and GHG Comparisons

2019 T24 Code basics

EDR

Prescriptive vs Performance Pathways

Building Model Code Language

II. Building Model Code Details

Slide13

University of California- All-Electric New Construction

2017 Study

Slide14

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Why 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?

Slide16

GHG Comparison

Mixed fuel / All electric 2017 / All Electric 2030 grid

Slide17

2019 State Code Basics (Title 24 Chapter 6)

Slide18

What’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

Slide19

What 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.

Slide20

Mandatory + 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

Slide21

Building Electrification Reach Codes by Building TypePerformance and Prescriptive Paths

Slide22

Buildings 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

Slide23

Single 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

Slide24

Multifamily 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

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Nonresidential

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

Slide26

Residential : 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

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Residential : 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)

Slide28

Non-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

Slide29

EVCI Cost Retrofit vs. New

Terms and Rates

Codes

III. EV Model Codes

Slide30

EVCI – 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.

Slide31

31

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

Slide32

32

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

Slide33

Single 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

Slide34

Multifamily 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)

Slide35

Non-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

Slide36

What steps to take

What are other cities doing

Outreach Materials & Tools

Contacts

IV. City Actions

Slide37

City 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

Slide38

Participation to-date by Agency

Slide39

Implementation & 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

Slide40

Building staff/permit Tools & Resources

Permitting, enforcement, and inspection resources

Permit Checklist

Inspection Checklist

Training for Building Department Staff

FAQs

Slide41

V. GHG Emission Reductions

Slide42

Slide43

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2,100 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

Slide46

2,700 Square Foot Single Family Home

46

Slide47

6,960 Square Foot Multi-Family Home

47

Slide48

Office

48

Slide49

Hotel

49

Slide50

Retail

50

Slide51

Website:

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

Slide52

Thank you!