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A groundbreaking Swiss project is transforming unused railway infrastructure into clean energy generators – without disrupting train services.
By TPN, in Europe, Sustainability , World · 04 Jul 2026, 09:10 · 0 Comments
Railway lines have traditionally been designed for one purpose: transporting people and goods.
But what if the same infrastructure could also generate electricity?
A Swiss startup believes it has found a practical way to do exactly that by installing removable solar panels directly between railway tracks, turning thousands of kilometres of existing railways into potential renewable energy sources.
If successful, the idea could help countries expand solar production without using valuable farmland or building new solar parks.
Unlike conventional solar farms, the concept makes use of land that already exists.
Specially designed photovoltaic panels are fitted in the space between the rails, an area that typically receives uninterrupted sunlight throughout the day but serves no other purpose.
The system has been engineered so the panels can be quickly removed whenever railway maintenance is required, allowing engineers access to the tracks without major disruption.
Developers say installation can also be carried out using dedicated machinery capable of fitting large sections of panels in a relatively short period.
While a single stretch of railway might only produce modest amounts of power, the potential becomes significant when viewed on a national scale.
Many European countries operate thousands of kilometres of railway lines, creating an enormous network of unused surfaces that could contribute to renewable electricity generation.
The energy produced could be fed into the public grid or potentially used to power nearby railway infrastructure, stations or signalling systems, reducing reliance on fossil fuels.
The idea sounds simple, but railway environments present unique engineering challenges.
Solar panels must withstand constant vibration from passing trains, extreme weather conditions, dirt, dust, brake residue and regular maintenance operations.
Engineers also need to ensure the panels do not interfere with signalling equipment, create glare for train drivers or compromise railway safety.
These are precisely the questions the pilot project aims to answer before any wider rollout.
Across Europe, governments are increasingly looking for places to install renewable energy without affecting agriculture or natural landscapes.
Solar canopies over car parks, floating solar farms on reservoirs and photovoltaic panels along motorways have all emerged in recent years.
Railway corridors may become the next frontier.
By making productive use of infrastructure that already exists, countries could expand renewable generation without significantly changing the surrounding landscape.
If the technology proves reliable and cost-effective, the concept could be replicated across railway networks in countries including Portugal, France, Germany, Italy and Spain.
With Europe continuing its transition towards cleaner energy, innovative projects like this demonstrate that future power generation may not always require building new infrastructure—sometimes it’s simply about rethinking the infrastructure we already have.
Whether solar railways become commonplace remains to be seen, but one thing is certain: the tracks carrying tomorrow’s trains could also help power tomorrow’s homes.
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