How could the impact of greenhouse gas emissions for “Scope 3” be measured and reported to ensure the transparency, accuracy and reliability of the information?


Sacyr seeks to give a new dimension to the calculation of "Scope 3" of its carbon emissions. “Scope 3” includes, among others, all indirect emissions that occur in a company's value chain, including all work and supplies.

The calculation of the Carbon Footprint in “Scope 3” is based on a list drawn up by the Greenhouse Gas Protocol (GHG) which defines the fifteen categories of greenhouse gas (GHG) emissions.

Sacyr accounts and reports these emissions with an indicative/estimative calculation base.


  • Measure and report the carbon footprint associated with SACYR’s main activities.
  • Analyze data transmitted by suppliers to validate  the source, reliability and consistency of the data.
  • Manage data in a secure and standardized way to be able to present the the proofs/evidence to/from each audit.
  • To detect the activities that generate the highest impact on the environment.

We look for: 

Capture and authentication of data required for carbon footprint calculation

  • Automation of data capture from scanned documents
  • Solutions to encourage and speed up communication between customers and suppliers on the data needed to calculate emissions
  • Sensors that capture and report the necessary data to the environmental impact assessment
  • SSOT (Single Source Of Truth) models that guarantee the reliability and transparency of data

Methodologies for environmental impact assessment that reduce approximations

  • Mathematical models applied to the calculation of greenhouse gas (GHG) emissions
  • Solutions that allow an approximation of the GHGs emitted by each activity with high precision

Traceability of the life cycle of products and services

  • Solution that allows to follow a product or service in each stage of its life cycle
  • Tool linked to product monitoring that allows for the quantification of GHG emissions generated by each activity
  • Solution for the certification of the calculations that allows to speed up the reporting of the scope 3 and the audit work.

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