Worcester Regional Transit Authority Key Performance Indicators Electric Bus Deployment Project December 18, 2013

Introduction Project Goals –Achieve performance levels that meet or exceed existing fleet –Reduce fuel costs –Reduce emissions –Enhance transit serviceCleaner, Greener Purpose of KPI Reporting –Assess performance of electric buses as compared to existing fleet –Assess impact on WRTA’s agency-wide fuel costs –Assess impact on WRTA’s agency wide GHG emissions

The Fleet Bus TypeQuantity% of Fleet 29 GILLIG510% 29 GILLIG HYB24% 35 GILLIG917% 35 GILLIG HYB612% 40 GILLIG1529% 40 GILLIG HYB917% 35' Electric612% Total Fleet52100%

The Routes Route 4 Route 18 Downtown “Green” Circulator (Route 80) Alternate: Route 8 Alternate: Route 25

KPI: Mileage

KPI: Diesel Gallon Equivalent

KPI: Average Fuel Efficiency

Blue months indicate electric bills with estimated reads; kWh consumption was adjusted retroactively Red months indicate months with variable supply costs inadvertently left off, making cost/mile less than expected

KPI: Fleet Average Fuel Cost per Mile Contracted Diesel Fuel Cost: $3.14/gal Average Electricity Costs: $0.20/kWh

KPI: Fleet Average Fuel Cost Per Mile Blue months indicate electric bills with estimated reads; kWh consumption was adjusted retroactively Red months indicate months with variable supply costs inadvertently left off, making cost/mile less than expected

Electricity Costs Blue months indicate electric bills with estimated reads; kWh consumption was adjusted retroactively Red months indicate months with variable supply costs inadvertently left off, making cost/mile less than expected Orange indicates month with lower than typical demand charges applied ($ vs. $2.92 per kW) Note: Previous May 14 data included an estimated supply cost charge but was later removed b/c never applied in bill

KPI: Average Fuel Cost per Mile by Type Contracted Diesel Fuel Cost: $3.14/gal Average Electricity Costs: $0.20/kWh

KPI: Change in Fleet Average Cost/Mile Note: Electric buses represent 12% of WRTA total fleet

KPI: Availability

KPI: Emission Reduction Total CO 2 Reduction to Date: 305 Tons! Total Diesel Reduction to Date: 27,000 gallons!

Electric Bus Deployments Current Deployments Planned Deployments

Comparison Metrics - Efficiency

Comparison Metrics - Availability

Conclusions Greater utilization and the G-3 utility rate switch has lowered the electric cost per mile to below all other buses in WRTA fleets for April – October Availability issues continue to limit the potential of the electric bus fleet Cost per mile is seasonal –Expect higher cost/mile in the winter months