Mr Vadasz will be joining the Swedish energy company from a position as head of external communications with SJ, Sweden’s national railway.

During his tenure at Telia International Carrier, Mr Vadasz built up a public relations (PR) organization that conducted PR and media relations work in 22 countries. He then spent two years as European head of communications at Amersham, where he also served on the company’s crisis management team. Mr Vadasz also has several years’ experience as a communications consultant.

Carolina Wallenius, head of communications at Vattenfall, said: Effective media communications is an increasingly important factor in a company’s success. With his background and experience, Mark Vadasz will be a valuable asset for us.