President of Ukraine Volodymyr Zelensky thanked the EU members for completing the synchronization of the Ukrainian and European power systems.

"Ukraine has become a member of the Energy Union. The unification of Ukrainian & European energy systems has been completed. Now Ukrainian electricity flows in the EU & vice versa. Grateful to EU members, personally to Ursula von der Leyen, Kadri Simson & everyone, thanks to whom we now have a single energy system!" Zelensky said on Twitter.