Reliable emission factors

How do I choose the right emission factors?

Emission factors are added to the OpenCO2 emissions database only after a careful validation process. We only add emission factors to the database that come from reliable sources and are up to date. We have also created our own classification system for emission factors to make it easy to select the right one. The classification is based on emission calculation standards, such as the GHG Protocol standards, and guidelines for selecting emission factors.

Primary data leads to more accurate calculation results

The OpenCO2 database provides a comprehensive range of emission factors based on physical quantities and even company-specific primary factors. In accordance with emission calculation standards, primary data obtained from suppliers is the primary choice when calculating emissions and leads to more accurate calculation results. Learn how to select the correct emission factor here.

According to the standards, spend-based emission calculations based on currency data should be avoided if emission calculations can be made based on physical quantities. Although spend-based calculation is not the preferred method, it is still necessary in some cases, such as when calculating emissions from services purchased by a company. Our database also contains up-to-date currency factors collected from various sources for situations where their use is necessary.