The biggest German energy company, EON, said Monday that it was mulling how to adapt to the country's decision to abandon nuclear energy, after a press report said it planned to close three sites.

An EON statement declined to comment directly on a report in the weekly magazine Spiegel, but added that "owing to the strongly modified conditions, EON is examining possible adaptations of its strategy and positioning.

"Decisions have not been taken yet," the group added.

Speigel said earlier that EON had decided to close three sites following the government decision to abandon nuclear energy by 2022.

Spiegel, which did not cite its source, said EON would close sites in Hannover, northern Germany, Munich in the south, and Essen in the west, and eliminate hundreds of jobs once it obtains supervisory board approval.

The report added that activities at the three locations would be regrouped at EON's headquarters in Duesseldorf, western Germany, and said the German group might also spin off some of its foreign activities.

EON is seeking to reduce debt by selling non-strategic assets worth some 15 billion euros ($21.6 billion), the report said, and could turn its back on Europe and focus on emerging markets.

EON is to present quarterly results on August 10.