Cumulative Energy Demand is an impact method that assesses primary energy usage adapted by FEDEFL from Frischknecht et al. (2003).
Current version in Earthster is 2021 version 2.1
| Category name | Unit | 
| Non-renewable, biomass | MJ | 
| Non-renewable, fossil | MJ | 
| Non-renewable, nuclear | MJ | 
| Renewable, biomass | MJ | 
| Renewable, water | MJ | 
| Renewable, wind, solar, geothermal | MJ | 
| Total | MJ | 
| Total, non-renewable | MJ | 
| Total, renewable | MJ | 
