Last Saturday, Estonia, Latvia, and Lithuania, as the last European countries, disconnected from an old Soviet power grid leading to Russia, the Russian exclave of Kaliningrad, and Belarus.
For approximately a day, the Baltic countries were then without a connection to a larger so-called synchronous area. But on Sunday, the countries were connected to the Central European power grid via Poland.
EU Commission President Ursula von der Leyen, who is on site in Vilnius to celebrate the occasion, says in a statement that "history has been made".
The work of disconnecting from the Russian grid began as early as five years ago.