World first as solar connected to railway line in Aldershot

Today social enterprise Riding Sunbeams switched on the first ever solar array to directly supply a railway line with electricity, paving the way for the world’s first ever solar powered trains.

Riding Sunbeams’ ‘First Light’ demonstrator project is a collaboration between climate change charity 10:10, Community Energy South and national rail infrastructure operator Network Rail, alongside a wider consortium of specialist engineering and renewable energy consultants and academics. If successful, the innovative scheme will prove that solar can safely bypass the grid to provide a direct supply of energy to UK railways’ traction systems, without disrupting train operations - something never before done anywhere else in the world. 

Made up of around 100 solar panels, the 30kWp solar test  unit is connected to an ancillary transformer on the Wessex Route’s traction system, with energy from the array set to power  signalling and lights. The team are also gathering electricity demand data from six potential community solar sites in the south of England. Putting all this real-world data together, they will work out how to plug in much larger solar arrays to power trains. By the end of 2020, Riding Sunbeams hope to build and connect the world’s first ever full-scale community- and commuter-owned solar farm to UK railways. 

The solar rig was connected today to the railway line at a site in Aldershot, where lineside communities like these and rail passengers will eventually have the chance to invest in these  pioneering ‘solar traction farms’, as Riding Sunbeams aim to encourage local investment in the schemes, as well as local community benefit funds.

Funded by the Department for Transport through the First of a Kind Round 2 competition, delivered by InnovateUK, the ‘First Light’ project was born out of an earlier study by 10:10 Climate Action and Imperial College London’s Energy Futures Lab  which showed that connecting solar panels directly to rail, tube and tram networks could meet a significant share of their electricity needs. Crucially, the research also found that this clean, renewable power could be supplied at a lower cost than electricity supplied via the grid today - without the need for public subsidy.

Leo Murray, Director of Riding Sunbeams, said,

“Matchmaking the UK’s biggest electricity user, the railways, with the nation’s favourite energy source, solar power, looks like the start of the perfect relationship. Helping to get the railways off fossil fuels in this way will cut running costs and benefit local communities at the same time as helping to tackle the climate crisis.”

Stuart Kistruck, Director of route asset management for Network Rail’s Wessex Route, said:

“We are proud to be working with 10:10, Community Energy South and our other stakeholders to deliver this exciting world-first project on the Wessex route.

“We have ambitions to roll this technology out further across the network should this demonstrator project prove successful so we can deliver a greener, better railway for our passengers and the wider public.”


Notes to editors

  • More information on the 2017 Riding Sunbeams report by 10:10 can be found here.

  • Riding Sunbeams is a joint enterprise by charity 10:10 Climate Action and Community Energy South, set up to provide Britain’s rail networks with a direct supply of community owned renewable

  • 10:10 is a UK based charity that brings people together to take positive, practical action on climate change. We engage citizens and communities in finding solutions that benefit the climate and their own lives too

  • Community Energy South is a not-for-profit company set up in 2013 to support the network of community energy groups in the South East of England. 

  • Network Rail is the asset management service organisation that owns, operates, maintains and, where funded, enhances the UK’s railway infrastructure. It is also the UK’s largest single electricity consumer, using around 1% of the national supply to power trains on their networks.

  • The wider consortium behind the ‘First Light’ demonstrator project also benefits from expertise provided by Ricardo Energy & Environment, Horizon Power & Energy, Bristol University, Birmingham University, and Leapfrog Launchpad.

Media contact

Sarah Barfield Marks

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