How much solar generation has been added to Elizabeth line stations in total?

Transport for London (TfL) aims to always deliver solar power when new buildings are constructed, such as the most recently installed 173kWp solar array on the roof of the Train Modification Unit at Acton. However, only one Elizabeth line station (Whitechapel) employs photo-voltaic panels (PVs) for electricity generation. This is because, at the design stage, this was the only site where use of PVs was viable due to the limited view of unobstructed sky at other stations. Many of the central section Elizabeth line stations were integrated to existing structures on the London Underground network or had over-site developments, which limited the construction of new roofs.  The installation at Whitechapel totals 18kWp.

The Elizabeth line’s construction and design has also incorporated a wide range of other measures to reduce energy consumption and carbon emissions across the route, including lightweight trains, regenerative braking, maximising natural light within stations, energy efficient LED lighting and the use of low-carbon construction materials. Both solar PV and solar thermal energy systems have been installed at the Old Oak Common train depot, and rainwater harvesting and thermal water heating has also been installed at Custom House station.