Romanian authorities sank four barges loaded with heavy rocks into the Danube River on May 6 to divert water toward a nuclear plant [1], [2].
The emergency measure aims to secure essential cooling water for the Cernavodă nuclear power plant, which provides 20% of Romania's national electricity [1]. Without sufficient water flow, the reactors face potential shutdowns that could destabilize the national power grid.
The operation follows a severe drought that reduced the flow of the Danube in the Romanian section to about one-third of its annual average [2]. This record low has threatened the plant's ability to maintain safe operating temperatures for its reactors.
The Cernavodă facility operates two reactors, though one has already been shut down [2]. By sinking the rock-laden barges upstream, operators hope to partially block the river's main flow and force more water into the plant's intake channels.
Government and plant operators said the diversion is a critical step to prevent a total operational failure. If the plan proves successful, officials estimate the reactor could gain about 10 additional operating days [1].
The use of sunken vessels as makeshift dams is a drastic response to the region's dwindling water levels. The Danube serves as a primary artery for both transport and industry, and the current water crisis has pushed the Romanian energy sector to employ these unconventional engineering tactics to maintain power stability.
“Romanian authorities sank four barges loaded with heavy rocks into the Danube River”
The sinking of barges to maintain nuclear cooling illustrates the growing vulnerability of energy infrastructure to extreme climate events. As record droughts lower river levels, traditional water-intake systems become insufficient, forcing governments to choose between unconventional river modifications or risking large-scale power outages.
