Thameslink will provide an additional 14,500 seats on its routes with the introduction of new energy efficient trains. The trains will run from 2012 between London St Pancras and Blackfriars and on the Midland and East Coast lines. They will also operate on other routes via London Bridge and Elephant and Castle to destinations on the Brighton lines and routes in Kent, Surrey and Sussex. The deal means that the current fleet of trains will increase by a total of 380 carriages and that another other six trains an hour will run between Blackfriars and St Pancras International.