Hungary's Paks Nuclear Plant Forced to Shut Down Due to Record Low Danube Water Levels

Hungary's only nuclear power plant will be forced to shut down entirely for the first time due to record low water levels of the River Danube, Prime Minister Péter Magyar has said.

The Soviet-era Paks power plant uses the Danube for cooling but the water level is so low that the suction nozzles cannot reach it.

Magyar warned Hungary's energy supply could become "critical" from Monday due to the Paks shutdown and the ongoing heatwave, which will see temperatures hover around 37C for a week.

Like much of Europe, Hungary has seen very low rainfall and high temperatures for much of the summer.

The waters of the Danube have fallen to the lowest levels for 30 years in several countries, including neighbouring Serbia and Romania.

Magyar asked Hungarians to limit activities that required significant energy consumption between the peak times of 17:00 and 22:00, including charging electric cars and using air conditioning equipment.

A "rotational shutdown regime" was also possible if the other combined efforts were not enough to maintain the balance of the national grid, Magyar said, adding the government would compile a list of electricity and water consumers whose consumption could be limited.

In Romania, one of the country's only two nuclear reactors has been shut down at the Cernavoda power plant, which provides about 20% of the country's power.

The first of the two 706-megawatt reactors was shut down earlier this week because the Danube's levels were so low, and state-owned company Nuclearelectrica was trying to avoid closing down the other on Thursday. If the second reactor is shut down Romania will, like Hungary, be temporarily without any nuclear energy production.

Climate change is driving up temperatures around the world - but particularly in Europe.

It is the fasting warming continent, heating up twice as fast as the global average, according to the Copernicus climate service. This is causing increased summer heatwaves, greater pressure on Europe's waters and more intense wildfires.

Romania's National Institute of Hydrology says the average river flow where the Danube enters the country is 4,700 cubic metres per second in July, whereas on Wednesday it was down to less than a third of that, at 1,600cm per second. The institute forecast it would continue to fall to 1,500cm per second by Tuesday.

The Danube runs 2,857km (1,775 miles) through 19 countries.

The Upper Danube goes from Germany to the Slovak capital Bratislava, the middle basin runs from Bratislava to the border between Serbia and Romania and the Lower Danube extends through Romania and Bulgaria into the three main branches of the Danube Delta that flow into the Black Sea.

The low waters of the river have resulted in several unexpected discoveries. The remains of a sunken Hungarian cargo ship resurfaced in Croatia, while the hulks of a German river flotilla was seen in Serbia.

And a resident of the northeastern Bulgarian city of Ruse found bones on the Danube river bed, which experts determined were the remains of a mammoth.

They were able to recognise a lower jaw, two tusks, and possibly a mammoth rib.