The Delhi division of the Northern Railway on 3 June 2015 rolled out a non-AC coach lit by solar panels mounted on its roof.

The eco-friendly solar panels will save fossil fuel as it needs reduced external charging of battery, thus reducing carbon foot print. The panels also require less maintenance in comparison to existing equipments.

This is the first time in the history of Indian Railways, that a solar photovoltaic system has been used for power requirements of light and fan in a broad gauge coach.

The coach, on an experimental basis, was attached to a high speed Self Propelled-Accident Relief Unit (SPART) that travelled from Delhi Cantonment to New Delhi railway station.