In a major effort to Network Rail's upgrade of the station, a £450m new roof resplendent with energy-producing panels is to be installed at King's Cross station in London.
A £27m roof will be installed and will cover 15,000m² of the main train shed and 2,500m² of photo-voltaic glass generating 10% of the station's electricity needs.
The work also involves the revamp, renovation and renewal of the main wrought-iron structure.
Construction of this project will be carried out by Kier Construction and is expected to be completed within three years.
Network Rail programme director Ian Fry said, "This is a vital piece in the jigsaw of the entire redevelopment of King's Cross station. The roof renewal will make the station brighter, more environmentally friendly and a better place to be.
"Crucially, we have carefully planned the way we carry out this work, so that it causes no disruption to train services as we restore this impressive structure back to its former glory."