Member of the board of trustees of the Teaching Assistant Union
of Helsinki University of Technology, 1970 - 1971
Member of the management group of Kainuun Valo Ltd, 1972 - 1975
Member of the Network Information WG of the Finnish Association of Electric Utilities, 1973 - 1975
Member of the UNIPEDE Use of Computers in Electricity Supply Undertakings Committee, 1974 - 1976
Chairman of the board responsible for arranging the government financial aid for students at Tampere University of Technology, 1978 - 1980
Editor of the journal "Sähkö-Electricity and Electronics" in the field of Power Transmission, 1984 - 1986
Member of the national board of experts related to organising career training courses in power engineering (INSKO), 1984 - 1988
Member of the board of the Finnish Electric Safety Inspectorate, 1985 - 1987
Member of the panel discussion "Distribution Automation in Europe" in the IEEE-PES Summer Meeting in Vancouver, 1985
Member of the Finnish CIRED National Committee, 1985 - 2013
Member of the joint CIGRE WG 37.07/CIRED (A) "Interaction between transmission and distribution system planning", 1986 - 1988
Chairman of the working group for planning the guidelines for Nordic graduate courses in power engineering, 1987 - 1988
Member of the advisory committee of ABB Finland, 1988 - 1997
Leader of the first Nordic graduate course "Public power distribution networks", 1989
Member of the panel discussion "Uncertainties in Electricity Distribution" in the IEEE Electricity Distribution Conference in Belo Horizonte, Brazil, 1990
Member of CIRED WG6, 1993 - 1997
Member of the management group of Sähköyhtiö Megavoima Ltd, 1993
Member of the management group of the national energy research program EDISON (Distribution Automation), 1993 - 1997
Member of the board of the Finnish Electric Safety Inspectorate, 1993 - 1996
Member of the PSCC Conference Technical Committee, 1994 - 1999
Member of the planning group for the Competence Centre in Power Distribution at Royal Institute of Technology, Stockholm, 1996
Member of the UETP-EES Executive Board, 1996 - 1998
Member of CIGRE Study Committee 36 (Power Quality and Electromagnetic Compatibility), 1996 - 2001
Member of the panel discussion "DMS Tools for Planning and Operation of Distribution Networks" in the IEEE-PES Summer Meeting in Berlin, 1997
Member of the panel discussion "Analysis of North American and European Distribution Systems" in the IEEE-PES Summer Meeting in Berlin, 1997
Leader of the EES-UETP and Nordic graduate course "Electricity Distribution in Open Market Conditions", 1997
Agent of IEA Annex IX (Electricity Storage Applications), 1998 - 1999
Agent of FRIENDS (Future Electricity Distribution Systems), 1998 - 2001
Evaluator of ELEKTRA, a Swedish research program in electrical power engineering, 1999
Member of the panel discussion "Methods for Voltage Sag Mitigation" in the IEEE-PES Winter Meeting in Singapore, 2000
Member of the scientific advisory board of the Competence Centre in Power Distribution at Royal Institute of Technology, Stockholm, 2000 - 2007
Head of international team for evaluating Estonian universities and research centers, 2002
Member of CIGRE SC C6: Distribution Systems and Dispersed Generation, 2002 - 2008
Member of International Program Committee of several IASTED and other international conferences in electrical engineering and power systems, 2003 -
Member of Evaluation Team for proposals to the 6th FP of the European Commission, 2003
Special Reporter at CIGRE Session on Distribution Systems and Dispersed Generation (with Trevor Gaunt), 2004
Expert Member of Market Court of Finland (Energy Markets), 2008 - 2013