Primary data includes data provided by suppliers or other value chain partners related to specific activities in the reporting company’s value chain. Such data may take the form of primary activity data, or emissions data calculated by suppliers that are specific to suppliers’ activities.
ADVANTAGES:
- Provide better representation of the company’s specific value chain activities
- Enables performance tracking and benchmarking of individual value chain partners by allowing companies to track operational changes from actions taken to reduce emissions at individual facilities/companies and to distinguish between suppliers in the same sector based on GHG performance
- Expands GHG awareness, transparency, and management throughout the supply chain to the companies that have direct control over emissions
- Allows companies to better track progress toward GHG reduction targets
DISADVANTAGES
- May be costly
- May be difficult to determine or verify the source and quality of data supplied by value chain partners
In GHG Protocol it is also referred as Supplier-specific method ( it collects product-level cradle-to-gate GHG inventory data from goods or services suppliers).
Source : GHG Protocol