NF ISO 52000-3, P50-779-3 (06/2023)

This document provides a transparent framework for declaring the choices of operating methods aimed at determining the primary energy factors (PEF) as well as the CO2 emission coefficients of the energy delivered to buildings and of the energy exported by buildings, as described in ISO 52000-1. It does not include considerations regarding other topics, including nuclear waste, atmospheric particles, deforestation, competition between food and bioenergy, depletion of raw material sources, soil depletion. This document specifies the choices to be made in order to calculate the PEFs and CO2 emission coefficients relating to different energy vectors. The PEFs and CO2 emission coefficients of the energy exported by the building may differ from those chosen for the energy delivered to the building. This document is essentially a complementary standard to ISO 52000-1, as the latter requires that PEF and CO2 emission coefficient values complement the PEB calculation; however, it can be used for other applications.
(Automatic translation from French)