In July 2008 the SHFCA announced plans for a "hydrogen corridor" from Aberdeen to Peterhead. The proposal involves running hydrogen powered buses along the A 90 and is supported by Aberdeenshire Council and the Royal Mail. The economics and practical application of hydrogen vehicles are being investigated by the University of Glasgow, among others. In 2015 the city of Aberdeen became the site of the UK’s first hydrogen production and bus refuelling station and the council and announced the purchase of a further 10 hydrogen buses in 2020. The "Hydrogen Office" in Methil aims to demonstrate the benefits of improved energy efficiency and renewable and hydrogen energy systems.