Estonia, Latvia and Lithuania — small EU and NATO members once part of the Soviet Union — had planned the change for years but sped up the process after Russia’s full-scale Ukraine invasion.
The war launched in February 2022 triggered fear in the Baltics that they could be targeted next. The staunch Ukraine supporters also worried that Russia would blackmail them using the electricity system.
“We are safe because we have disconnected from the Russian grid,” Nerijus Cesiulis, mayor of the southern Lithuanian city of Alytus, told AFP.
He added it was important to avoid a repeat of incidents “like those in the Baltic Sea”, where several undersea telecom and power cables have been severed in recent months.
Some experts and politicians have accused Russia of waging a “hybrid war”, including unconventional targeting of energy supplies, an allegation Moscow denies.
Authorities had warned of the potential for sabotage or other disruptions linked to the grid switch, but the disconnection went off without a hitch.
Baltic grid operators said Russia had cooperated during the disconnection process.
The European Commissioner for Energy, Dan Jorgensen, said it was “a historic day”.
“I like the light better when there’s no Russian electrons involved,” he told reporters in Estonian capital Tallinn.
“This is about security… No European country should be dependent on Russia for anything,” he added.
Ukrainian Energy Minister German Galushchenko also hailed the disconnection as a “significant event for the whole of Europe”.
“Such steps deprive the aggressor of the opportunity to use the electricity sector for blackmail and political games,” he said Saturday.
After the Baltic states completed the disconnection process on Saturday morning, Latvia physically cut a power line to Russia.
“Now we have complete control over our power grid,” Latvian Energy Minister Kaspars Melnis told reporters while holding a piece of dismantled wire.
His Lithuanian counterpart Zygimantas Vaiciunas told AFP they had eliminated any potential for Russia to use grid control “as a weapon”.
Vaiciunas said the Baltics were now operating in so-called “isolated mode” before they integrate with the European grid via Poland on Sunday.
The window of time was so they could run tests to assure Europe their energy system was stable, Lithuanian state-run grid operator Litgrid said.
It added on Saturday evening it had completed all “frequency control tests” and everything was progressing as planned.
A total of 1.6 billion euros ($1.7 billion) — mostly EU funds — have been invested in the synchronisation project across the Baltic states and Poland.