Energy Minister Kostas Skrekas said on Friday he signed a memorandum of understanding with his Italian counterpart to have natural gas stored in Italy.
The agreement covers 1.5 TWh (terra watt hours) of natural gas that can be transported to Greece via reverse flows, the minister said, without providing further details.
Greece had been in talks with Italy to see whether it can store gas there as part of efforts to secure supplies if Russian flows are disrupted.
Greece has no gas storage facilities and may need to store enough gas in other states to cover 15% of its annual use in the coming winter.
In a pre-recorded message aired at the 6th Southeast Europe Energy Forum 2022 held in Thessaloniki on Friday, Skrekas said Greece has transformed into a regional hub of both natural gas and green energy.