HYBRID BUS ROUTE COMPARISON
Yenra | Updated September 8, 2026
Article: https://yenra.com/hybrid-electric-drive-buses/

PURPOSE
Plan or review a matched hybrid-bus trial. Fix the question, comparison period and exclusions before interpreting results. Retain raw records and explain adjustments.

QUESTION AND VEHICLES
Trial objective and decision to support:
Vehicle IDs, model, engine, hybrid architecture, battery, software:
Passenger capacity, test mass and charging requirement:
Exact full/partial test report and configuration differences:

MATCHED CONDITIONS
Routes/distance, stops, speed distribution, grades:
Passenger loading, congestion, driver/assignment method:
Dates, temperature and heating/cooling operation:
Data exclusions, missing values and substitute buses:

RESULTS
Fuel litres and km for each matched period:
L/100 km = litres / km x 100.
Fuel reduction % = (baseline litres - comparison litres) / baseline litres x 100, for equivalent distance/service.
km/L = km / litres; label its percentage change separately.
Fictional check: 200 km using 80 L versus 64 L is 40 versus 32 L/100 km and 20% lower fuel consumption. Economy is 2.5 versus 3.125 km/L, a 25% increase. These are invented results.
Plug-in charging kWh and measurement boundary, if applicable:
Repeated runs, sample size, average and spread:
Scheduled/delivered service, road calls and downtime reasons:

FLEET FIT
Maintenance training, diagnostics and high-voltage work arrangements:
Parts availability, battery support and warranty terms:
Cost horizon and clearly dated/fictional price assumptions:
Emissions pollutant, measurement method and system boundary:
Conclusion by route; remaining evidence and assigned owner:
Keep modeled, laboratory-tested and local field results identified separately.

REFERENCE CONTEXT
The linked article explains the comparisons and limits. Check exact project or equipment documents before using a specification.
August 2005 Electric Drive Bus Analysis
https://www.transit.dot.gov/sites/fta.dot.gov/files/Electric_Drive_Bus_Analysis_0.pdf
October 2016 ORNL study
https://www.ornl.gov/publication/comparison-parallel-and-series-hybrid-power-trains-transit-bus-applications
bus-testing report guidance
https://www.transit.dot.gov/research-innovation/bus-testing-reports