Component Type | Applicable to | Description of Component Type | CO₂e Flux Direction |
---|---|---|---|
sequestration | Calculations of CO₂e sequestered through storage or natural processes | Sequestered ↓ | |
loss | CO₂e losses and leakage before reaching permanent storage | Emitted ↑ | |
counterfactual | Baseline calculations to compare actual sequestration against alternative scenarios | Emitted ↑ | |
activity | Fuel and energy usage, manufacturing processes and consumables | Emitted ↑ | |
reduction | Activity emissions that have been reduced by other claims, such as Book and Claim Units. | Sequestered ↓ |
Component Blueprint | Use case | Calculations |
---|---|---|
Energy-based CI emissions | The most generic energy use blueprint | |
Grid electricity use emissions | For electricity emissions where the absolute amount of electricity consumed is known | |
Metered electricity use emissions | For electricity emissions where the meter reading is known | |
Time-based grid electricity use emissions | For electricity emissions where the time drawn from the grid is known | |
Electricity-ratio based emissions | For electricity emissions where electricity consumption is extrapolated from an efficiency value, such as the amount of electricity consumed per tonne of material processed | |
Electricity use emissions with low-carbon procurement | For electricity emissions where low-carbon is procured | Please see blueprint for full equation |
initial meter readout
and final meter readout
is collected every month by a facility in a project. A grid emission factor
specific to the geography has been sourced. Data for this month is as follows:
Datapoint # | Datapoint | Value | Unit |
---|---|---|---|
A | initial meter readout | 20 | kWh |
B | final meter readout | 50 | kWh |
C | electricity emission factor | 1.2 | kgCO₂e/kWh |
electricity_use
and grid_carbon_intensity
. (B)-(A) could be used to obtain an input for electricity_use
and (C) as an input for grid_carbon_intensity
. However, as the component blueprint Metered electricity use emissions has inputs for the final readout
and initial readout
it is more accurate and transparent to represent this data using that component blueprint, so it should be chosen. If the final readout and initial readout were not available then using Grid electricity use emissions would be suitable.
If multiple month’s data is being submitted a component should be created for each month of electricity consumption.
Example 2
A project developer attempted to source primary data for a piece of equipment’s electricity consumption, but it was not available. Instead, the project developer sourced an emission factor specific to the technology of the equipment which documents how much electricity is consumed per tonne of material processed. The developer does have primary measurements of how much material was processed on site, this was measured using a calibrated scale.
Datapoint # | Datapoint | Value | Unit |
---|---|---|---|
A | mass of feedstock processed | 10 | tonnes |
B | efficiency of equipment | 2 | kWh/tonnes |
C | electricity emission factor | 1.2 | kgCO₂e/kWh |
Component Blueprint | Use case | Calculations |
---|---|---|
Mass-based CI emissions | For emissions where the mass of material consumed is known, generic | |
Fuel usage by mass emissions | For emissions where the mass of material consumed is known, specific to fuel | |
Mass-ratio based CI emissions | For emissions where the mass of material used is extrapolated from an efficiency value, such as the mass of material consumed per tonne of feedstock processed | |
Fuel usage by mass emissions, accounting for BCU claims | For emissions where the mass of fuel consumed is known and Book and Claim Units are used | See blueprint for full equation |
Component Blueprint | Use case | Calculations |
---|---|---|
Volume-based CI emissions | For emissions where the volume consumed is known, generic to any liquid or gas | |
Fuel usage by volume emissions | For emissions where the volume consumed is known, specific to fuels | |
Volume per feedstock-unit mass based emissions | For emissions where the volume of material used is extrapolated from an efficiency value, such as the volume of material consumed per tonne of feedstock processed | |
Fuel usage by volume emissions, accounting for BCU claims | For emissions where the volume of fuel consumed is known and Book and Claim Units are used | See blueprint for full equation |
Component Blueprint | Use case | Calculations |
---|---|---|
Transport emissions | For transportation where the mass and distance traveled is known | |
Mass-distance-based CI emissions | Used when the mass and distance traveled have been aggregated for multiple small trips | |
Distance-based emissions | For transportation where only the distance traveled is known, acceptable for transportation by passenger car or airplane | |
Fuel consumption based transport emissions | For transportation where the fuel consumed is extrapolated based on vehicle efficiency |
Component Blueprint | Use case | Calculations |
---|---|---|
Mass-based CI emissions | For emissions where the mass of material consumed is known, generic | |
Mass-ratio based CI emissions | For emissions where the mass of material used is extrapolated from an efficiency value, such as the mass of material consumed per tonne of feedstock processed |
Component Blueprint | Use case | Calculations |
---|---|---|
Volume-based CI emissions | For emissions where the volume consumed is known, generic to any liquid or gas | |
Volume per feedstock-unit mass based emissions | For emissions where the volume of material used is extrapolated from an efficiency value, such as the volume of material consumed per tonne of feedstock processed |
Component Blueprint | Use case | Calculations |
---|---|---|
Currency-based CI emissions | Where emissions are calculated from the cost of a material, equipment or service | |
Embodied emissions | When emissions is reported as a single figure, for example in the case they are sourced from an EPD |
Component Blueprint | Use case | Calculations |
---|---|---|
GHG direct emissions | Direct emissions from a process | |
GHG leakage emissions | Direct emissions from a process based on gas energy used |