As default we choose to use the data of the IDEMAT tables for so-called ‘background processes’ (Scope 2 and Scope 3 supplies in the GHG protocol). These tables have been selected for the following reasons:
It is developed and maintained by the Sustainability Impact Metrics Foundation, a fully independent non-profit organization, in collaboration with the Delft University of Technology
Their calculation methodology is very well documented
It applies the most recent information (for e.g. electricity data in Idemat is more recent than Ecoinvent and Gabi)
It is fully transparent, based on peer reviewed scientific papers and measured data
It offers a single (monitized) value for sustainability
The IDEMAT data have been calculated by ‘full LCA software’ (Simapro and Open LCA), in compliance with ISO 14040, ISO 14044, EN 15804, and the LCA handbook of the ILCD.