BUILDING REACH CODE UPDATE (D) 6
Presented by Kerrie Romanow, Director – Environmental Services Department (ESD) Julie Benabente – Deputy Director – ESD
Jessica Zenk – Deputy Director – Department of Transportation (DOT) Delivering world-class utility services and programs
to improve health, environment, and economy.
Transportation and Environment Committee
December 5, 2022
BACKGROUND
• Climate Smart San José (2018) and Pathway to Carbon
Neutrality by 2030 (2022) set and accelerated electric vehicle (EV) and local renewable energy installation goals
• California set rule requiring 100% zero-emissions car sales by 2035 (2022)
• City’s 2019 building reach code
• Required 70% EV Capable, 20% EV Ready, 10% EV
Service Equipment (EVSE) for new multifamily buildings
• Requires solar-readiness across all new developments
1 COUNCIL DIRECTION
City Council directed staff to return before the end of 2022, after community engagement, with:
• An estimate of the marginal per-unit cost of
expanding multifamily EV charging
infrastructure requirements (5% EVSE, 95%
EV Ready)
• Recommendations on 1) updating roof space
design standards to expand use of solar on
rooftops and 2) mitigate embodied carbon from
building materials
2 EV CHARGING INFRASTRUCTURE DEFINITIONS
3 Networked
Low Power
(LP)
Automated
Load
Management
System
(ALMS)
Raceway (conduit), electrical capacity (breaker space).
Raceway (conduit), electrical service capacity, overcurrent protection devices, wire and outlet (i.e. full circuit).
All the equipment needed to deliver electrical energy from an electricity source to the EV.
EV Capable
EV Ready (Plug
& Play)
EV Supply
Equipment
(EVSE)
Installed Level
2 Charger
Allows for power sharing across multiple charging stations.
Charge at a slower rate than standard L2 chargers but provide cost savings due to reduced electrical infrastructure needs.
EVSE are connected remotely to a larger network and are part of an infrastructure system of connected chargers. Allows for remote access and management of the charging station.
MARGINAL COST ANALYSIS FINDINGS
• Options 1A (min. Council direction) and 1B (regional model) are cost comparable, at 0.4% of construction cost, to the City’s current reach code while Option 1C is slightly higher (0.5%)
• Option 1B and 1C include more EVSE (15%) with either a “dumb” (nonnetworked) or networked EVSE option respectively. 4 % of spaces cost % of spaces cost % of spaces cost % of spaces cost L2 EV Capable $2,362 70% $165,358 $0 $0 $0
L1 EV Ready $2,061 $0 $0 $0 $0
L2 EV Ready - LPL2 $2,352 $0 85% $199,903 85% $199,903 85% $199,903 L2 EV Ready $2,806 20% $56,111 10% $28,056 $0 $0
L2 EVSE- dumb ALMS, dual port $3,114 10% $31,136 $0 15% $46,703 $0 L2 EVSE- networked ALMS, dual port $4,935 $0 5% $24,676 $0 15% $74,027 L2 EVSE - networked ALMS, single port $7,135 $0 $0 $0 0% $0 Total 100% $252,604 100% $252,634 100% $246,606 100% $273,930 % of construction cost 0.4% 0.4% 0.4% 0.5%
% of charging spaces 30% 100% 100% 100%
EVCI Cost Analysis Cost per Port San José Reach Code Option 1A - Council Direction Option 1B-Regional Model Option 1C - Networked Model
KEY ANALYSIS TAKEAWAYS
5 EV Charging Infrastructure in Multifamily
• Updating to a minimum of 5% EVSE and the remainder L2 EV Ready can be cost comparable to the City’s current reach code standards while providing significantly more EV charging spaces. • Implementing at the time of construction will be significantly less costly than implementing as a retrofit
Embodied Carbon
• Estimated at 2.7% of consumption-based emissions, not in City’s inventory • Existing statewide legislation and local policies require or encourage the use of more carbonfriendly materials, such as timber and low-carbon concrete. • CALGreen has voluntary measures for low-carbon concrete mixes • Bay Area Embodied Carbon Regional Working Group is developing a regional policy guide Solar
• San José has 270 MW of solar installed (5th in the nation per capita) and a goal of 1 gigawatt by 2040.
• Reach code, online City permitting, and federal tax credits incentivize installations • CPUC’s final NEM 3.0 rules (under review) could significantly influence solar financials
STAKEHOLDER ENGAGEMENT OVERVIEW
5 Public Webinars
Invitees included:
• Two sessions: contractors.
developers, labor
organizations, affordable
housing community
• Two sessions: residents,
affordable housing
community
• One session: landlords,
HOAs, property managers,
community-based
organizations, affordable
housing community
General support for the City to expand EV infrastructure in multifamily housing and to pursue voluntary measures to increase low-carbon concrete use in construction.
Feedback around three themes:
• Managing building cost increases by allowing
charging access for each household rather than each
parking space and consider L1 charging requirements
• Reframing EV charging access in multifamily housing
as an equity concern and connecting to a unit’s
electrical service panel to allow for the resident to
manage cost
• Suggestion for City to assess EV ownership data in
multifamily housing to support the need for
infrastructure
6 Accept this update on the marginal cost analysis for
increased electric vehicle charging infrastructure in new multifamily housing developments and on the research
findings on embodied carbon mitigation strategies and
the City’s roof design standards to allow expanded use
for rooftop solar.
RECOMMENDATION
7 Questions