Capital, which previously handled Taqa's investor relations, will also take responsibility for global corporate comms, investor relations and brand development. The firm had previously used Bell Pottinger for aspects of group-level corporate PR before moving to unify its comms accounts.
The team will be led by Nick Bastin, director, in London and Kate Delahunty, MD MENA, inDubai.
Taqa is majority-owned by the Abu Dhabi government and is listed on the Abu Dhabi Securities Exchange.
The firm has built a vast portfolio worth $23.4bn and is now the sixth largest independent power producer in the world.