Paks nuclear plant shutdown looming as Danube water hits record low

Paks nuclear plant Danube low water energy import Hungary navigation disruption

Record‑low water levels on the Danube, measured at about 1,600 m³/s—less than half the normal flow—and 28 cm below the 2018 low, have triggered an energy emergency in Hungary. The river supplies cooling water to the Paks nuclear power plant, which provides roughly half of the country's electricity (around 2,000 MW). Operators warned that a full shutdown of all four reactor blocks could become unavoidable within the next 24–72 hours, and two blocks have already reduced output to 960 MW.

Hungary has declared a national energy alert, asked Ukraine for electricity assistance and urged large consumers to cut usage. Estimates indicate the country may need to import about 1,700 MW of power, rising to over 2,500 MW if a second reactor group is taken offline. The situation also hampers fuel transport, as barge traffic on the Danube has been halted, disrupting logistics for oil and other goods.

Neighbouring states are feeling similar effects: Serbia reports vessels waiting in its Danube stretch, Bulgaria notes dozens of ships stuck, and Serbia’s president warned of fuel shortages. In Hungary, local authorities have imposed water‑use restrictions and temporary measures such as switching off decorative lighting in towns like Hódmezővásárhely, while the national water‑utility urges conservation. Mol’s chief executive confirmed that fuel shipments on the Danube have stopped and the company is seeking state help. Experts have criticised the crisis handling, saying the shutdown could add significant costs to consumers.

Entities

Cernavodă Nuclear Plant · Cernavodă Nuclear Plant · Cernavodă Nuclear Power Plant · Cernavodă Nuclear Power Plant · Danube River · Government of Hungary · Hungarian Ministry of Energy · Hungarian government · Hungary · Ilie Bolojan · László Gajdos · MOL Group

Claims

What the coverage asserts, and how many sources carry each claim.

[● 9 SOURCES] Both Cernavodă and Paks nuclear plants use Danube water for cooling, and low flow threatens nuclear safety. www.ma.hu · sarajevskasehara.com · www.denik.cz · energetyka24.com
[● 18 SOURCES] The Danube water flow was measured at 1,750 cubic metres per second on July 16, the lowest in three decades. www.ma.hu · www.denik.cz · energetyka24.com · sarajevskasehara.com · vasarnap.hu · +4 more
[● 17 SOURCES] Hungary reduced output of Block 1 at Paks by 254 MW on July 27 because of the low Danube water level. www.denik.cz · energetyka24.com · www.ma.hu · acnews.hu · www.alon.hu · +2 more
[● 14 SOURCES] Cernavodă Unit 1 was shut down on July 28 because of low Danube water flow. www.ma.hu · sarajevskasehara.com · energetyka24.com · www.denik.cz · elperiodicodelaenergia.com · +1 more
[● 16 SOURCES] Hungary reduced output of Block 3 at Paks by 237 MW on July 28 because of low Danube water flow. www.denik.cz · energetyka24.com · www.ma.hu · acnews.hu · vasarnap.hu · +2 more
[● 17 SOURCES] Danube water level at Paks was measured at –106 cm on July 27, a record low. www.denik.cz · energetyka24.com · www.ma.hu · acnews.hu · vasarnap.hu · +2 more
[● 7 SOURCES] Cernavodă nuclear plant supplies about 20 % of Romania’s electricity. www.ma.hu · sarajevskasehara.com · energetyka24.com
[● 4 SOURCES] The shutdown of unit 1 is expected to last until at least August 4. www.ma.hu · energetyka24.com
[○ 1 SOURCE] Danube water flow measured 1,750 cubic metres per second on 16 July, the lowest in 30 years. www.ma.hu
[● 3 SOURCES] A second reactor at Cernavodă could be shut down if Danube water levels continue to fall. sarajevskasehara.com · www.ma.hu
[○ 1 SOURCE] The Cernavodă reactor is expected to restart no earlier than 4 August. www.ma.hu
[● 2 SOURCES] Cernavodă Unit 1 reactor was shut down on Tuesday due to low Danube water flow. www.ma.hu · sarajevskasehara.com