Options for increased use of ash from biomass combustion and co-firing

Dec 2018
Ash utilization

This report provides an overview on present practices in ash management from biomass (co)combustion, based on country reports for experiences in seven member countries of Task 32, namely Austria, Canada, Denmark, Germany, Italy, the Netherlands and Sweden. Other members in IEA bioenergy task 32 that contributed were South Africa and the United Kingdom. The report consists of a short overview section, giving the main highlights and conclusions that can be extracted from the country reports. This overview also provides a separate table with the utilization practices. The country reports for Austria, Canada, Denmark, Germany, Italy, the Netherlands and Sweden are added as separate appendices to this report.

On a worldwide level, only a limited number of guidelines with best practices were developed in the field of ash management. To strengthen utilization possibilities on a supranational scale, improved knowledge exchange and sharing are required. This report shows the extent of existing practices and differences in application. On some aspects harmonization efforts may be required (such as the use in forests) but generally this report is meant to form a starting point for improved knowledge sharing.


Frans Lamers (DNVGL), Marcel Cremers (DNVGL), Doris Matschegg (Bioenergy2020+), Christoph Schmidl (Bioenergy2020+), Kirsten Hannam (CFS – Natural Resources Canada), Paul Hazlett (CFS – Natural Resources Canada), Sebnem Madrali (CANMET – Natural Resources Canada), Birgitte Primdal Dam (Emineral A/S), Roberta Roberto (ENEA), Rob Mager (Ontario Power Generation), Kent Davidsson (SP Technical Research Institute of Sweden), Nicolai Bech (StandardConsult ApS), Hans-Joachim Feuerborn (VGB), Angelo Saraber (Vliegasunie)

Ash management report