In October, Moscow launched its biggest bombing campaign against Ukrainian gas facilities since the start of the 2022 invasion, halting 60 percent of production of the main source of heating fuel.

“We have already prepared an agreement with Greece on supplying gas to Ukraine,” Zelensky wrote on social media.

Zelensky added that Kyiv had also secured financing agreements to cover “nearly €2 billion” (US$2.32 billion) of production losses caused by the Russian strikes.

The funding comes from the Ukrainian government, European banks guaranteed by the European Commission, Ukrainian banks and Norway.

In addition to its European and US allies, the Ukrainian president said he was working “actively” with Azerbaijan and hopes to conclude “long-term contracts” for gas imports from the former Soviet republic.

Zelensky’s announcement comes ahead of a European visit that will include stops in France and Spain. His office confirmed to AFP on Sunday that he was in Greece.

Last winter, Russian bombing had already halved national gas production, according to the government.

The first systematic attacks against Ukraine’s energy network began in late 2022, causing widespread power outages and plunging millions of people into darkness and cold during freezing temperatures.