 From 1977 to 2000 he was elected with PASOK as a member of the Hellenic Parliament for Athens.After the accession of Greece to the EEC on January 1, 1981, he became a provisional member of the European Parliament representing Greece until the country could hold its first European Parliament elections.In successive PASOK cabinets he held the portfolios of Industry and Energy (1981–82), Industry, Energy and Research (1986–89, 1989–90 and 1995).