T-1A1c-A-2 - Diesel buses

Definition

This emission source is defined by the IPCC in E-1A3b - Road Transportation.

Sustainability Category: Red

This activity significantly contributes to greenhouse gas emissions and undermines climate mitigation efforts. The activity should be phased out or fundamentally transformed, with financing directed toward decommissioning, replacement with sustainable alternatives, or radical decarbonization where elimination is not immediately feasible.

Transition Elements

This activity has the following mitigation options modelled as transition elements:

• T-1A1a-TE-17 - Shift to travel by diesel bus
• T-1A1c-TE-1 - Biofuel for diesel buses
• T-1A1c-TE-4 - Improved bus engine technology

Activity Model

This emission source is modelled with Combustion as:

Parameters

Parameter	Unit	Description
emission_factor_biodiesel_kwh_to_co2e	g_co2e_kwh	Emission factor biodiesel WTW
emission_factor_diesel_kwh_to_co2e	g_co2e_kwh	Emission factor fossil diesel WTW
energy_intensity_buses_diesel	kwh_vehicle_km	Energy intensity diesel buses
resource_proportion_biodiesel_buses	percent	Fuel proportion biodiesel for buses
resource_proportion_diesel_buses	percent	Fuel proportion diesel for buses
stock_buses_diesel	vehicle_km	Stock diesel buses
stock_growth_buses_diesel	vehicle_km_percapita	Growth of diesel bus operations

YAML Specification

version: 2.2.0
sustainability: red
ipccEmissionSource: 1a3b-road-transportation
operation:
  growthType: true
  variable: stock_buses_diesel
  growthFactor:
    unitOfMeasure: per_capita
    expression: '%[0]'
    variables:
    - stock_growth_buses_diesel
work:
- name: combustion
  unitOfMeasure: kwh
  operationToWork:
    unitOfMeasure: kwh/vehicle_km
    expression: '%[0]'
    variables:
    - energy_intensity_buses_diesel
  input:
  - resource: hvo_biodiesel
    unitOfMeasure: kwh
    resourceProportion: resource_proportion_biodiesel_buses
    resourceToWork:
      unitOfMeasure: kwh/kwh
      expression: '1'
    emissionFactor:
      unitOfMeasure: g_co2e/kwh
      expression: '%[0]'
      variables:
      - emission_factor_biodiesel_kwh_to_co2e
  - resource: diesel
    unitOfMeasure: kwh
    resourceProportion: resource_proportion_diesel_buses
    resourceToWork:
      unitOfMeasure: kwh/kwh
      expression: '1'
    emissionFactor:
      unitOfMeasure: g_co2e/kwh
      expression: '%[0]'
      variables:
      - emission_factor_diesel_kwh_to_co2e

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