Cumulative Energy Demand

The method to calculate Cumulative Energy Demand (CED) is based on the method published by ecoinvent version 1.01 and expanded by PRé Consultants for energy resources available in the SimaPro database. Extra substances, according to the Ecoinvent database version 2.0, are implemented.


Characterisation factors are given are given for the energy resources divided in 5 impact categories:

  • Non renewable, fossil
  • Non renewable, nuclear
  • Renewable, biomass
  • Renewable, wind, solar, geothermal
  • Renewable, water


Normalisation is not a part of this method.

Download the Methods Manual (PDF, 0.6 MB) for a concise overview of the methods in SimaPro.