Difference between revisions of "Quantifying GHG Reductions"
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== Definition == | == Definition == | ||
− | '''Quantifying GHG Reductions''' is a procedure for compiling and reporting an aggregate GHG reduction from a [[GHG Project]]. The following is according to <ref>The GHG Protocol for Project Accounting, 2005</ref> | + | '''Quantifying GHG Reductions''' is a procedure for compiling and reporting an aggregate GHG reduction from a [[GHG Project]]. The following decomposition is according to <ref>The GHG Protocol for Project Accounting, 2005</ref> |
* The standard reporting unit is in tonnes of [[CO2 Equivalent]], denoted as (t CO<sub>2</sub>eq) | * The standard reporting unit is in tonnes of [[CO2 Equivalent]], denoted as (t CO<sub>2</sub>eq) | ||
− | * The total GHG reduction | + | * The total GHG reduction for the i-the project is the sum of annual [[GHG Project Activity]] reductions PA<sub>t, z</sub> for the time horizon T of the project |
* The time period unit is a year (t) | * The time period unit is a year (t) | ||
* The project activity index is (z) | * The project activity index is (z) | ||
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− | :<math>\mbox{GHG Reduction} | + | :<math>\mbox{GHG Reduction}_i = \sum_t \sum_z \mbox{PAR}_{t, z}</math> |
== Project Activity Reduction (PAR) == | == Project Activity Reduction (PAR) == | ||
− | : | + | The reduction is decomposed into primary and secondary effects: |
− | == Primary Effects == | + | :<math>\mbox{PAR}_{t, z} = \mbox{PE}_{t, z} + \mbox{SE}_{t, z}</math> |
− | Primary Effects is the delta | + | |
+ | === Primary Effects === | ||
+ | The total Primary Effects reduction is the delta on absolute reduction from baseline emissions induced by the project activity emissions (PAE): | ||
+ | |||
+ | :<math>\mbox{PE}_{t, z} = \sum_p \mbox{BE}_{t, z, p} - \mbox{PAE}_{t, z, p}</math> | ||
+ | |||
+ | === Secondary Effects === | ||
+ | Secondary effects are correspondingly computed from secondary activity emissions reduction (SAE): | ||
− | :<math>\mbox{ | + | :<math>\mbox{SE}_{t, z} = \sum_s \mbox{BE}_{t, z, s} - \mbox{SAE}_{t, z, p}</math> |
== Annual Quantification of GHG Reduction == | == Annual Quantification of GHG Reduction == |
Revision as of 19:03, 4 November 2021
Contents
Definition
Quantifying GHG Reductions is a procedure for compiling and reporting an aggregate GHG reduction from a GHG Project. The following decomposition is according to [1]
- The standard reporting unit is in tonnes of CO2 Equivalent, denoted as (t CO2eq)
- The total GHG reduction for the i-the project is the sum of annual GHG Project Activity reductions PAt, z for the time horizon T of the project
- The time period unit is a year (t)
- The project activity index is (z)
- The primary effect index is (p)
- The secondary effect index is (s)
Project Activity Reduction (PAR)
The reduction is decomposed into primary and secondary effects:
Primary Effects
The total Primary Effects reduction is the delta on absolute reduction from baseline emissions induced by the project activity emissions (PAE):
Secondary Effects
Secondary effects are correspondingly computed from secondary activity emissions reduction (SAE):
Annual Quantification of GHG Reduction
Where:
- are the Annual GHG reductions for the entire GHG project
- are the total annual baseline emissions for all the GHG project's primary effects
- Total annual GHG project emissions
Annual Baseline Emissions
Project Emissions
See Also
References
- ↑ The GHG Protocol for Project Accounting, 2005