Moldova–Ukraine border

Moldovan President Maia Sandu on Friday voiced deep concern about the security situation on her country's border caused by Russia's invasion of Ukraine.

Specifically, at night the hydraulic units pump water from the Dniester into the upper basin, thereby consuming the surplus of cheap electricity from electricity networks. In the morning, during peak hours, the same amount of water can be discharged back into the Dniester through generators, producing electricity.