The 80 houses in the submerged village, along with their church and primary school, were "sacrificed" to provide water for Athens.
The Naxos potato, a PDO-certified product, is facing historically low yields, which will force the island to import potatoes for the first time on record this autumn.
The call for proposals, expected this autumn, targets Greek islands and will support hybrid systems that address both water scarcity and renewable power generation.
Greece is among the top 25 most water-stressed countries worldwide, increasing the potential for a water crisis