Published by Jessica Weisman-Pitts
Posted on September 13, 2022
2 min readLast updated: February 4, 2026
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By Radovan Stoklasa
MOCHOVCE, Slovakia (Reuters) – Slovak utility Slovenske Elektrarne has completed loading fuel to the long-delayed Mochovce 3 nuclear power plant, the plant’s director said, making it one of the few new nuclear units to come online as Europe struggles with a power supply crunch.
The 471-megawatt unit is expected to produce first electricity in late October or early November, plant director Martin Mraz told Reuters.
“We will be at full production at the beginning of 2023,” Mraz said at the plant as the last fuel assemblies were being loaded to the reactor.
The new unit will produce around 3.7 Terrawatt hours per year, covering 13% of Slovakia’s electricity consumption and making the country self-sufficient, he said.
Cuts in Russian gas supplies to Europe in response to sanctions imposed on Moscow over its invasion of Ukraine, prompted a frantic search for alternatives to avert a looming energy crisis this winter heating season.
The European Union member will become a net electricity exporter after Slovenske complete Mochovce Unit 4, with about a two-year lag after the Unit 3.
Mochovce is based on the originally Soviet VVER design with control systems from Siemens and Areva.
“This new generation capacity … is the second nuclear power plant in Europe to now approach commercial production after a long period of construction,” said a spokesperson for Enel, a 33% co-owner of Slovenske, in emailed responses to Reuters questions. “Once it is put into operation, it will help reduce European dependence on gas,” the spokesperson said.
Construction was halted in the 1990s and resumed more than a decade ago but has suffered repeated delays and cost overruns, with the total cost of the two units seen at around 6 billion euros ($6.10 billion).
($1 = 0.9835 euros)
(Reporting by Radovan Stoklasa, writing by Jan Lopatka; Editing by Tomasz Janowski)
A nuclear power plant is a facility that uses nuclear reactions to generate electricity. It typically involves the fission of uranium atoms to produce heat, which is then used to create steam that drives turbines.
Energy independence refers to the ability of a country to meet its energy needs without relying on external sources. This often involves producing enough energy domestically to satisfy consumption.
Renewable energy is energy derived from natural sources that are replenished at a faster rate than they are consumed. Examples include solar, wind, hydro, and geothermal energy.
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