FILE PHOTO - Vattenfall logo is seen on its headquarters in Stockholm, Sweden April 18, 2016. Pontus Lundahl/TT News Agency/File Photo via REUTERS OSLO (Reuters) - Sweden's state-owned utility ...

Vattenfall logo is seen on its headquaters in Stockholm, Sweden April 18, 2016. Pontus Lundahl/TT News Agency/File Photo via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY.

Swedish utility Vattenfall [VATN.UL] and American energy services company Ameresco have won a 20-year concession to operate and expand the heat network in Britain's Bristol in a drive to cut emissions ...

Vattenfall logo is seen on its headquaters in Stockholm, Sweden April 18, 2016. REUTERS/Pontus Lundahl/TT News Agency/File Photo LONDON (Reuters) - Swedish utility Vattenfall [VATN.UL] said the ...