Sustainable Fleet Electrification
Christina JaworskiSenior Environmental PlannerSanta Clara Valley Transportation Authority
Santa Clara Valley Transportation Authority (VTA)
Why Zero Emission by 2040?
Electricity10%
Natural Gas 1%
Propane 1%
Fuel88%
2017 GHG Inventory
California Air Resources Board Innovative Clean Transit Rule
Adopted December 2018
• 01/2023: 25% of new bus purchases are ZEB• 01/2026: 50% of new bus purchases are ZEB• 01/2029: 100% of new bus purchases are ZEB• 01/2040: All transit buses are 100% ZEB
VTA Public Charging Stations
Electric Buses
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• Began operating five Zero Emission Buses (ZEB) in July 2018• Started with six 50 kW chargers that have just been upgraded to 120 kW• Planning to procure at least 30 additional ZEB’s over the next 5 years• Preparing ZEB Rollout Plan for 100% ZEB by 2040
VTA’s Current and Proposed Fleet Electrification Plans
VTA Cerone Yard
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Averaging $450K per year For electricity
960 KW Solar
675 kWh Generator650 KWh Generator
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Proposed New Commercial Electric Vehicle Rate - Energy Charges
6 Smart Chargers
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Cerone Bus Division - 2018 Electricity Usage
Grid Solar
Maintenance Mid Life Overhaul
Operations/Dispatch
• Solar power almost completely covers the afternoon energy consumption, resulting in significant amount of export to grid.
Look at PV Production and Usage at VTA Cerone Bus Yard
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Bus Charging Analytics
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May 2019Charging Sessions By Start Time
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VTA working with Prospect Silicon Valley, and Bay Area tech companies to pilot a cutting-edge system that will manage charging and energy consumption on electric buses while reducing the impact on the state’s electricity grid.
Funding from the California Energy Commission will serve as a major case study for transit agencies throughout the country
Connected & Making Real Time Decisions
Vehicle to Grid Integration (VGI) Collaboration: PARTNERS
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Primary Goals of the VGI Solution
1. Ensure buses are charged and ready to go before pullout time2. Provide visibility into charging process3. Send alerts when issues in the charging process or during daily operation need to be addressed4. Support the assignment of bus to block process5. Minimize PG&E utility bill6. Simulate Grid interactions with system 7. Simulate New Block & Charging Options
Battery MgmtPower Supply
Bus Charger
Data Mgmt
Physical Assets
LocalSystems
CloudSystems
ChargePointServices
KisensumServices
TrapezeCleverDevices
Clever Devices
SAP
UtilityServices
UtilityMeter
GridElectricityData
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What Are The Major Innovations?
• Creating charge plans that support more buses than charge stations
• Energy Management Platform that interoperates with VTA and grid systems
• Dashboard and alerting system supporting vehicle charging & operations NEXT STEPS
Smart Microgrid +Second Life Li-IonEnergy Storage
Expanded Solar
• Realtime cost minimization process through demand leveling and time of use aware charging
• Performing grid service simulations while not jeopardizing the bus charging operations
Key Takeaways
• Going zero emission will dramatically reduce an agency’s carbon footprint and improve air quality
• Sustainability Programs can help ensure that electricity is used as efficiency as possible and is as clean as possible
• Sustainable fleet electrification will require managing electricity usage and cost on a regular basis