With the coming upgrade to the Great Western Main Line, the main line from London to Bristol is due to be electrified by 2016. However, the electrification will not extend beyond the main lines, so Redland will continue to be served by diesel trains, with the current "Sprinter" units expected to be replaced by and "Turbo" units. Stephen Williams, MP for Bristol West, questioned whether electrification could continue to Redland. Then-Secretary of State for Transport Philip Hammond replied that it would have to be looked at in the future. The group Friends of Suburban Bristol Railways supports the electrification of the entire Severn Beach Line.