World's First Removable Railway Solar Panel System Shows Positive Results in Switzerland

Switzerland is officially turning its transit arteries into power plants. One year after the world’s first removable solar railway system was laid in the village of Buttes, the results are in: the experiment is a resounding success. This Swiss-engineered breakthrough by start-up Sun-Ways has transformed a 100-metre stretch of track in canton Neuchâtel into a high-tech energy generator. Since May 2025, this modest installation has pumped over 16,000 kilowatt-hours into the local grid—enough to power the annual needs of four households from a space previously considered 'dead' infrastructure. While other nations grapple with land-use conflicts for solar farms, Switzerland is proving that the solution lies directly beneath the wheels of its iconic trains. This isn't just a local pilot; it is a global proof-of-concept that is already drawing urgent interest from France, Italy, and major markets across Asia. The message is clear: the future of renewable energy is no longer confined to rooftops or open fields—it is moving at 90km/h across the Swiss landscape.

More than 11,000 trains have thundered over these delicate-looking glass panels, yet not a single safety incident has been recorded. Critics initially feared that the vibrations of multi-ton locomotives would shatter the cells or that glare would blind drivers. The data proves them wrong. TransN, the regional transport authority, confirms that the system has remained 'perfectly stable' throughout the trial. In a surprising twist of physics, Sun-Ways founder Joseph Scuderi revealed that the trains themselves act as a maintenance crew. While the team originally planned to deploy mechanical brushes to clean the panels, they discovered that the powerful airflow generated by passing trains—reaching speeds of 90km/h—naturally sweeps away dust and debris. This self-cleaning phenomenon significantly lowers operational costs and ensures maximum efficiency. Furthermore, locomotive drivers have reported zero issues with glare, debunking one of the most persistent myths surrounding trackside solar. Security and efficiency are no longer at odds; they are working in tandem.

The true genius of the Sun-Ways system lies in its 'removability'—a feature that sets it apart from any other solar infrastructure in the world. Traditional fixed solar installations would paralyze railway maintenance, but this Swiss innovation can be dismantled with surgical precision. Using specialized tools, a six-metre module consisting of three panels can be detached and disconnected from the power grid in a staggering ten minutes. This capability is critical for the heavy-duty reality of rail management, where sleepers must be replaced and rails must be welded periodically. Joseph Scuderi emphasizes that this flexibility was the 'crucial' hurdle to overcome for commercial viability. By ensuring that energy production does not hinder the primary function of the tracks, Sun-Ways has removed the final barrier to large-scale adoption. The system is designed to be as dynamic as the network it sits on, allowing for rapid deployment and even faster retraction when the heavy machinery of the SBB or TransN needs to move in.

If this technology were deployed across Switzerland’s entire 5,320-kilometre rail network, the impact would be nothing short of seismic. Sun-Ways estimates a staggering potential of one billion kilowatt-hours of solar energy per year. To put that in perspective, that is enough electricity to power 300,000 Swiss households, or roughly 2% of the entire nation’s energy consumption. In a country where every square metre of land is precious, utilizing the existing rail corridors represents an unprecedented opportunity for energy independence. The pilot in Buttes was just the beginning; the focus now shifts to industrial-scale implementation. As Switzerland confronts its ambitious climate targets, the ability to generate massive amounts of clean power without sacrificing agricultural land or alpine vistas is a game-changer. The success in Neuchâtel has laid the tracks for a future where every commute contributes to a greener grid. Switzerland is no longer just a leader in rail punctuality—it is now the blueprint for the next generation of integrated renewable energy.