German energy companies are short of as much as 30 billion euros ($34 billion) of the money they need to set aside to build a safe disposal site for nuclear waste as part of the country's exit from nuclear power, Spiegel Online reported on Monday.
E.ON, RWE, EnBW and Vattenfall are due to switch off their nuclear plants by a 2022 deadline set by Chancellor Angela Merkel's government after the Fukushima disaster in Japan in 2011.