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School Bus Fuel Alternatives

School Bus Fuel Alternatives. Mercer island school district – October 16, 2014. Alternative Fuel Options Synopsis. Biodiesel Pros: less exhaust pollutants, domestic production, can work with current bus engines

ralph-osborne
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School Bus Fuel Alternatives

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  1. School Bus Fuel Alternatives Mercer island school district – October 16, 2014

  2. Alternative Fuel Options Synopsis • Biodiesel • Pros: less exhaust pollutants, domestic production, can work with current bus engines • Cons: more expensive, environmental concerns, fuel gelling, increased maintenance costs, separate fuel station required Compressed Natural Gas (CNG) • Pros: significantly reduced exhaust pollutants, domestic production, low fuel price • Cons: $30k more per vehicle, >$1 million fueling station/facilities upgrades, filling frequency and time, extremely limited fueling infrastructure, no buses available on state contract Diesel/Electric Hybrid • Pros: significantly reduced exhaust pollutants • Cons: $75k-$100k more per vehicle, battery replacement schedule and cost, range/power, no buses available on state contract Propane Autogas • Pros: significantly reduced exhaust pollutants, domestic production, low fuel price, inexpensive fueling station, buses available on state contract • Cons: $10k more per vehicle, new Roush engines need more testing, no Type D buses available yet

  3. Cost Analysis Propane fuel savings exceeds additional vehicle cost in just over 5 years of service

  4. Proposed Path Forward • Propane appears to be the likely main fuel alternative for school buses in the US • Continue to monitor propane pilot programs underway at Bellevue SD and Oak Harbor SD • Assuming pilot programs are successful, purchase a single propane Type A (little bus) for 16/17 school year • Consider joint fueling station with City of Mercer Island during MISD pilot phase and share information • If MISD pilot program is successful, begin replacing all fully depreciated buses with propane buses beginning in 2018

  5. Questions? • 2015 Bluebird Propane Type A School Bus

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