Weighted average carbon intensity (WACI)
Measurement answer
What this metric measures
A portfolio-value-weighted measure of exposure to companies with higher greenhouse-gas emissions relative to their revenue.
Specification
Metric specification
- Result format
- Single value
- Unit
- tCO2e per € million or $ million company revenue — source-defined reporting unit
- Reporting basis
- Reporting year
- Aggregation
- Portfolio-value-weighted average of investee carbon intensities
- Pillar
- Environmental
- Topic
- Portfolio financed emissions
- Controlled domain
- Sustainable finance
- Entity type
- Metric
Reporting boundary
Investment portfolio exposure to investee companies, using investee emissions relative to investee revenue
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting Disclosure44cc6cfef33e5418b139
PCAF Standards
- Publisher
- Partnership for Carbon Accounting Financials
- Edition
- Third Edition, December 2025
- Requirement
- Not Specified
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- PDF page 16, Table 2-1, WACI row
- Measurement AuthoritySource evidence
PCAF Standards
- Publisher
- Partnership for Carbon Accounting Financials
- Edition
- Third Edition, December 2025
- Requirement
- Not Specified
- Relationship
- Defines Measurement
- Mapping outcome
- Direct Evidence
- Source locator
- PDF page 16, Table 2-1, WACI row
Value structure
Dimensions and units
- Unit
- tCO2e per € million or $ million company revenue — source-defined reporting unit
- Reporting basis
- Reporting year
Unit meaning: Values use tCO2e per € million or $ million company revenue under the disclosed PCAF Part A method, period and boundary.
Published dimensions
- portfolio or asset-class composition
- investee sector
- investee geography
- investee emissions scope included
- portfolio valuation currency
- data-quality option
Disclosure method
Formula information
- Status
- Not applicable
- Formula type
- Structured Disclosure
Disclosure form
No single formulaReport the source-defined result with its stated fields and method disclosures. The source explicitly identifies WACI as a portfolio metric that relates company emissions to company revenue and weights those intensities by portfolio exposure. It is a standalone reportable portfolio-intensity outcome, but it is distinct from financed-emissions economic intensity because its aggregation is a weighted average of investee intensities rather than total financed emissions divided by portfolio value.
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 27 August 2026
Global GHG Accounting and Reporting Standard — Part A
- Publisher
- Partnership for Carbon Accounting Financials
- Edition
- Third Edition, December 2025
- Locator
- PDF page 16, Table 2-1, WACI row
Supports: The official PCAF source supports the identity, boundary and method basis of “Weighted average carbon intensity (WACI)”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: Global GHG Accounting and Reporting Standard — Part A, Third Edition, December 2025.
- Report the investee emissions scope or scopes included in the carbon-intensity numerator.
- Report the portfolio valuation basis and weights used for aggregation.
- Report the investee revenue denominator and its currency basis.
- Report the reporting period and applicable data-quality option or data-source hierarchy.
- Disclose relevant portfolio, sector, geography and asset-class coverage or exclusions where applicable.
Record-specific limitations
- WACI measures portfolio exposure to emission-intensive companies relative to company revenue; it is not absolute financed emissions.
- The result is sensitive to investee revenue, portfolio weights, emissions scope selection and data quality.
- The source occurrence expresses the metric in alternative revenue-currency denominators; results using different denominator currencies should not be directly combined.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.