£1bn Pembroke Power Station to officially open
A ceremony will be held later to mark the completion of a £1bn gas-fired power station in Pembrokeshire.
RWE npower has said its Pembroke Power Station, the largest of its type in Europe, will power 3.5m homes.
Wales Office minister Stephen Crabb welcomed the boost to the economy, with 100 long term jobs created.
However, the European Commission is investigating how the permissions for the plant were granted and whether it damages the marine environment.
Adam Parsons reports from Pembrokeshire.