Russian vitality provider RAO Nordic says it is going to droop deliveries of electrical energy to Finland from Saturday, citing issues with funds.
The firm mentioned it had not been paid for earlier deliveries.
The Finnish grid operator mentioned Russia offered solely a small proportion of the nation’s electrical energy and that it could possibly be changed from different sources.
On Thursday, Russia threatened to take “retaliatory steps” after Finland mentioned it deliberate to hitch Nato.
Finland shares a 1,300-km (810-mile) border with Russia, and has beforehand stayed out of Nato to keep away from antagonising its jap neighbour. However, since Russia’s invasion of Ukraine there was a surge in public help for Nato membership.
On Sunday Finland is predicted to formally announce its plan to hitch.
The resolution by Rao Nordic has not been explicitly tied to Finland’s resolution.
The Russian state-owned agency mentioned: “This situation is exceptional and happened for the first time in over twenty years of our trading history”.
Neither Rao Nordic nor the grid operator in Finland, Fingrid, defined what was behind the fee difficulties.
Last month Russia reduce provides of fuel to Bulgaria and Poland after they refused to adjust to a requirement to pay in roubles, a change they mentioned would contravene western sanctions.
This week Russia’s Gazprom introduced it will cease supplying fuel through the Polish a part of the Yamal-Europe pipeline.
Fingrid mentioned it didn’t count on electrical energy shortages on account of the shut off, as solely round 10% of Finland’s electrical energy is equipped from Russia.
“The lack of electricity import from Russia will be compensated by importing more electricity from Sweden and by generating more electricity in Finland,” mentioned Reima Päivinen, senior vice chairman of energy system operations at Fingrid.
Demand can also be reducing because the climate will get hotter, whereas a major quantity of additional wind energy era is predicted to come back on stream. A brand new nuclear energy station, anticipated to open this summer season, would greater than make up for the misplaced provides from Russia, Fingrid added.