Electric Vehicle Update September 28, 2018 Electric vehicles have - PowerPoint PPT Presentation

Electric Vehicle Update September 28, 2018

Electric vehicles have reached an inflection point Meaningful Ramp-Up Ambitious Future Safety First and Always 2

Vehicle electrification reduces rates Incremental sales More publicly- Influx of electric flow directly back available chargers vehicles results in to customers in the incentivizes more increased sales, form of additional customers to adopt resulting in more kWh over which to electric vehicles electric sales spread fixed costs – (EVs) REDUCES RATES We have modeled the benefit/cost ratio of a early electric vehicle charging infrastructure pilot programs and found a BCR > 1.0. Safety First and Always

Every $1.00 of investment leverages $1.20 of rate reducing benefit • With base assumptions, benefit/cost ratio is >1.0, indicating savings for customers: Summary of Benefit/Cost Analysis Net Present Benefits ($) ($64,694,578) Net Present Cost ($) $53,758,194 Net Cust. Impact/(Benefit) ($) ($10,936,384) Benefit/Cost Ratio (Ratio) 1.20 • EV incentive programs, especially during early phases of deployment, can increase sales and result in net rate reducing benefits for customers. Safety First and Always

MASS EV Program Overview EV Charging Stations After the Build Out LEVEL 2 DC Fast Chargers Dec 2022 +255% 5000 Before the Build Out Jan 2018 Level 2 Site Host Cost to Purchase Site Host Cost to Purchase $25k to $50k per charger $3k to $6k per charger DC FC Charge Time Per Vehicle Charge Time Per Vehicle ~30 minutes 2+ hours +82% 1400 1025 560 $45MM Supporting ~3,500 Chargers Chargers Sites Ports Sites Ports chargers 13,000 EVs 31,500 EVs enabled enabled Safety First and Always 5

MASS DC Fast Charger Deployment Summary Deployment Schedule Target Travel / 24 Destination 2018 2019 2020 2021 2022 Total Corridor 4 8 8 8 8 36 Deployment Stretch Goal 2018 2019 2020 Total 8 14 14 36 High Density / 6 6 Partnerships: Community Hub / MAVEN / EVgo Other Safety First and Always 6

MASSTargeted Sites – DC Fast Chargers Selection Metrics • Target peak traffic areas • Ensure gap coverage between service territories • 40 mile max distance to next station • More stations in higher traffic areas • Off-exit deployment to enable easy access Criteria consistent with guidance from Mass DOER Safety First and Always 7

DC Fast Charger Prioritization Strategy: Target High Traffic Corridors & Off Exit Deployment Exit 7 Ludlow Safety First and Always 8

MASS Level 2 Charger Deployment Summary Deployment Schedule Target 2018 2019 2020 2021 2022 Total Metro Boston 27 41 68 68 68 272 (69%) South Coast 3 5 8 8 8 33 (8%) Cape & MV 3 5 8 8 8 30 (8%) WMECO (15%) 6 9 15 15 15 58 Total 393 39 60 98 98 98 Targets represent proportional allocation of sites based on electric load. Criteria consistent with guidance from Mass DOER Safety First and Always 9

Level 2 Charger Prioritization Considerations Size of Customer Lot Capacity No Crossing of (kWh) Public Way Environmental Justice Distribution Service 24 Hour Access Communities in Area Preferably on- with Visible, Safe, (10%) site Transformer Ingress/Egress Well Lit Criteria consistent with guidance from Mass DOER Prioritization: ��������� ������������ ���������������������� ����������� �������� � ������� Safety First and Always 10

Host Customer Path Customer Agreement/ Construction/ Site Visit and Periodic Qualification Check-ins Purchase of Electrification charger 90 Days Ongoing Time interval for initial visit to electrification depends on our ability to timely construct sites. This is impacted by individual site locations, workforce issues, etc. Safety First and Always 11

Fleet-Ready Pilots Public Fleet (e.g. CT DOT) Private Fleet (e.g. UPS) Electrify portion of transit bus fleet (5 each in Electrify portion of private fleet of Stamford and Hartford), providing make-ready medium/heavy duty vehicles, providing infrastructure on pilot basis as first phase of make-ready infrastructure on pilot basis electric fleet deployments as first phase of electric fleet deployments Charging Infrastructure Charging Infrastructure Managed Charging Managed Charging interface interface Electric Truck provider Delivery Fleet Electric Bus provider Transit Fleet Partners shown illustrative, no definitive commitments Safety First and Always 12