Experts say safety must be improved at almost all of Europe’s nuclear power plants.
A leaked European Commission report reportedly puts the cost at around 25 billion euros.
Most of the recommendations are for reactors in France. This is not surprising; France is the EU’s biggest producer of nuclear power, housing 58 of the bloc’s 147 reactors.
The stress tests were prompted by the meltdown of the reactors at the Fukushima plant in Japan in March 2011, after a massive earthquake and tsunami knocked out the power supply to the cooling systems.
The news will please environmental campaigners Greenpeace, who have maintained a high profile campaign to highlight safety issues.
Back in May a paraglider landed inside a French nuclear plant, in a bid to highlight its vulnerability to an attack from the air.
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