sentences:  The ceremonies were attended by presidents of Estonia and Finland Kersti Kaljulaid and Sauli Niinistö, ministers of economy Taavi Aas and Mika Lintilä, Deputy Director-General of European Commission Energy Directorate Klaus-Dieter Borchardt and the managers of Elering and Baltic Connector Oy.Balticconnector started commercial operations on 1 January 2020.During the first month of operation it supplied over a third of Finnish gas demand, 885 GWh.