France
- Construction supervision and construction management of agricultural biogas plants
(Private client, 2020-2021)
Turkey
-
Biogas expert for the Turkish-German Biogas Project
(GIZ, Eschborn, 2013-2015)

Romania
-
Consultancy for development of technical and economic modelling of a Biogas plant (SC Ludan Environmental Technologies SRL, Bucharest, Ministry of Environment and Forests, Bucharest, World Bank, Washington, 2011)
Spain
-
Planning of a containerized pilot plant for anaerobic treatment of wastewater, sludge, and solid waste
(IMIDA, Murcia, 2009 – 2010)

Italy
-
Evaluation of two biogas plants in operation and support of the planning phase of several further biogas plants
(private client, 2009-2010)
Germany
-
Planning and implementation of agricultural waste co-fermentation plants in Germany
(private clients 1999 – 2007 – for TBW GmbH, Biogas Nord GmbH) -
Planning and implementation of a container pilot plant for the anaerobic treatment of solid and liquid organic waste
(ISET Hanau 2000 – 2001 – for TBW GmbH)


Bulgaria
-
Evaluation of biogas projects
(2006 – for Biogas Nord GmbH, Germany)
Belarus
-
Planning and preparing the implementation of two agricultural biogas plants
(2005 – for Biogas Nord GmbH)
