G R E E N B U I L D I N G R E A C H C O D E U P D A T E S

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1 3501 Civic Center Drive Suite 308 San Rafael, CA T F TTY CRS Dial 711 marincounty.org/cda G R E E N B U I L D I N G R E A C H C O D E U P D A T E S P R O P O S E D C H A N G E S Photo Credit: Jeff Wong

2 O V E R V I E W O F F E B R U A R Y 1 3 TH R E A D I N G F I R S T Slide 2 Staff introduced proposed changes to Chapter 19 (building code), including: o Energy efficiency standards beyond state code for new construction, including single family and multifamily residential and non residential projects o Compliance pathways supporting all-electric buildings o Green building requirements for remodels and new construction o EV requirements beyond state code The Board directed Staff to return on February 27th for another first reading of the standards with more stringent electric vehicle charging requirements.

3 D E F I N I T I O N S O F T E R M S U S E D Slide 3 EV Ready refers to a parking space that has allocated 208/240V 40-amp panel capacity, conduit, wiring, receptacle, and overprotection devices, with an endpoint near to the parking space. EV Capable refers to a parking space with conduit installed and allocated 208/240V 40-amp panel capacity for future EV charging stations

4 S I N G L E F A M I L Y R E Q U I R E M E N T S ( U N C H A N G E D ) Slide 4 P R O J E C T T Y P E Single Family New Construction Single Family Additions & Alterations R E Q U I R E M E N T Dedicated 208/240-volt branch circuit installed in CALGreen mandatory raceway Branch current and associated overcurrent protective device must be rated 40 amperes minimum Receptacle installed Identified on service panel as EV READY If the project is modifying the main electrical service panel, the same requirements as new construction apply.

5 M U L T I F A M I L Y A N D C O M M E R C I A L N E W C O N S T R U C T I O N Slide 5 O P T I O N 1 O P T I O N 2 A N D O P T I O N 3 O P T I O N S P A C E S S P A C E S When parking lot is being When parking lot is being built or modified, built or modified, 2 Spaces EV Ready 10% EV Ready 10% EV Capable 2 Spaces EV Ready Remaining spaces EV Capable Service panel shall provide for 20% of the spaces charging simultaneously. N/A 10% EV Ready Remaining spaces EV Capable Service panel shall provide for 20% of the spaces charging simultaneously Multifamily: 5% EV Capable when there are greater than 17 spaces. Commercial: Scales based on lot size, between 6% and 10% EV Capable for lots 10 spaces or larger

6 M U L T I F A M I L Y A N D C O M M E R C I A L A D D I T I O N S A N D A L T E R A T I O N S Slide 6 O P T I O N 1 O P T I O N 2 O P T I O N 3 O P T I O N S P A C E S S P A C E S When parking lot is being When parking lot is being built or modified: built or modified: 2 Spaces EV Ready 10% EV Ready 10% EV Capable When parking lot is being built or modified: 2 Spaces EV Ready Remaining spaces EV Capable Service panel shall provide for 20% of the spaces charging simultaneously. When parking lot is being built or modified: 10% EV Ready Remaining spaces EV Capable Service panel shall provide for 20% of the spaces charging simultaneously If the service panel is modified, add capacity for 20% of parking spaces. If more than 25% of the parking lot surface is modified, add conduit to all parking spaces and allocate existing service panel capacity (where available). N/A If both electrical and parking lot are being modified, achieve CALGreen Tier 1

7 2 0 % S I M U L T A N E O U S C H A R G I N G O V E R V I E W Slide 7 If an option is selected that requires more than 20% of spaces to be EV Ready or EV Capable, electrical service capacity shall be able to deliver a minimum 40 amperes at 208 or 240 volts multiplied by 20% of the total number of EV Spaces. An EV Load management system may be necessary in order to provide EV charging at more than 20% of EV Spaces. Applies to both Option 2 and 3, as presented here.

8 E X E M P T I O N S Slide 8 Where there is evidence that meeting the requirements will alter the local utility infrastructure design requirements on the utility side of the meter so as to increase the utility side cost to the homeowner or the developer by more than $400 per dwelling unit, EV requirements may be decreased. Local green building standards already include hardship and infeasibility exemption language, which may be applied as necessary

9 C O N S I D E R A T I O N S Slide 9 Cost Permit avoidance Grid impacts Consistency with cities Usage patterns and flexibility CEC approval and implementation timeline

10 R E C O M M E N D A T I O N S Slide 10 Primary Recommendation: Initial proposal, consistent with state code, reduced cost burden on developers, still a four to fivefold increase over CALGreen Tier 1 Secondary Recommendation: Option 3, which increases EV infrastructure but takes into consideration potentially significant electricity grids and cost impacts. Board may also direct staff to coordinate a process with stakeholders, including EV advocates and commercial and multifamily developers, for the 2019 Title 24 updates.

11 3501 Civic Center Drive Suite 308 San Rafael, CA T F TTY CRS Dial 711 marincounty.org/cda T H A N K Y O U A L I C E Z A N M I L L E R, P L A N N E R Photo Credit: Jeff Wong