A first for a United Kingdom airport, Glasgow Airport introduced a fleet of electric buses for connections to its terminal and long-stay parking lot.

The buses, three Scottish-built vehicles, provide a free 24-hour service, and replace the previous diesel-powered vehicles. In an effort to reduce the airport’s carbon footprint, this is part of an initiative that includes a £200,000 purchase of eight electric hybrid cars for airfield operations.

“We are proud to be the first airport in the UK to incorporate a full-electric bus fleet into our car park operation,” the airport said in a statement. “These state-of-the-art vehicles will play an important role in supporting our continued efforts to create a more sustainable business and will contribute significantly to help further reduce carbon emissions locally at Glasgow Airport.

“The environmental benefits and considerable cost reductions associated with the introduction of these electric vehicles was very attractive.

“Moving to a full-electric bus operation cuts the carbon emissions associated with passenger travel to and from our car park from 143 tonnes per year to zero, and this significant reduction is further supported by the fact that the airport’s electricity is also supplied via renewable energy.”