Pre SRFRDF – abbreviation of refuse derived fuel – is a fuel that is produced from a combination of non-recyclable commercial and industrial waste. This fuel contains different types of plastics, textile, rubber, wood and paper. Recyclables, such as glass and metal, are taken by waste sorters. The remaining material is useful to either be processed further into a higher quality alternative fuel [LINK NAAR]SRF, or can be used in waste to energy facilities.  Waste incinerators combust RDF as fuel to generate heat and electricity. This is called energy recovery. This application prevents waste from ending up in landfill.

Other RDF users are fuel producers. They use RDF with a high calorific value. N+P calls RDF with a high calorific value pre-SRF. The material is very suited to get processed into SRF, which is typically done via a mechanical process. After processing the material is suited to be used as an alternative for fossil fuels such as bituminous coal.