KeysQuestions4Vehicle1<\/p>\n
Fourteen months and 11,000 train passes later, Sun-Ways’ between-the-rails solar installation in Switzerland hasn’t produced a single failure photo \u2014 and that silence is louder than any press release.<\/p>\n
The country that spent \u20ac5 million watching a solar road in Normandy crack and peel within three years just signed a collaboration contract to be first in line to copy this exact technology.<\/p>\n
The 48-panel test site only powers three or four households, but that was never the point \u2014 what’s actually being stress-tested is the patented locking hardware that keeps a panel from becoming a derailment hazard under a regional train doing 56 mph.<\/p>\n
If the physics hold at scale, Sun-Ways says the Swiss rail network alone could generate enough power for 300,000 homes \u2014 and the infrastructure to do it is already sitting idle between every set of tracks in the country.<\/p>\n
Ask The Box \u2192<\/p>\n
Considering the Integra?<\/p>\n
Integra vs rival?Best trimReal MPG<\/p>\n
AI-generated summary from reviews, comparisons and articles by AutoNotion<\/p>\n
Solar panels have been screwed onto roofs, floated on reservoirs and, in California, strung over irrigation canals<\/a>. The one place they keep dying is anywhere vehicles actually touch them. France found that out with Wattway, the \u20ac5 million solar road in Normandy that cracked, peeled and got partially demolished within three years. We ran the full autopsy on that one<\/a>.<\/p>\n So when a Swiss startup said in 2025 that it would lock photovoltaic panels between the rails of a working train line and let regional trains hammer over them all day, the reasonable move was to bookmark the story and wait for the failure photos.<\/p>\n Fourteen months in, those photos don\u2019t exist. Sun-Ways founder Joseph Scuderi told Swissinfo in late June<\/a> that more than 11,000 trains have now rolled over the panels in Buttes, Switzerland, and that the installation stayed \u201cperfectly stable and safe during their passage.\u201d<\/p>\n The operator running the line agrees. And the phone keeps ringing: France\u2019s SNCF signed a collaboration contract in February, Italy\u2019s rail infrastructure manager is discussing a pilot before the year is out, and South Korea has already approved one of its own.<\/p>\n 48 panels, 11,000 trains, and no excuses yet<\/p>\n The test site is a 100-meter stretch (about 330 feet) of regional track in Buttes, a village in canton Neuch\u00e2tel in western Switzerland, operated by TransN. Sun-Ways installed the plant in April 2025: 48 panels rated at 380 watts each, sitting on the sleepers between the rails, for a total of 18 kW.<\/p>\n It is the world\u2019s first removable solar power plant on a line open to rail traffic, a system we broke down in detail when the trains started rolling<\/a>.<\/p>\n The silicon was never the hard part. The hard part is a patented locking connection that has to hold every panel still while trains pass inches above them at up to 90 km\/h (56 mph), dozens of times a day. If a clamp backs out or a module shifts, you don\u2019t have an underperforming solar plant. You have a derailment hazard.<\/p>\n Eleven thousand passes later, nothing has moved. And the plant has been producing the whole time: more than 16,000 kWh fed into the local grid since May 20, 2025, despite roughly a month offline for snow and some planned work to integrate a technical component.<\/p>\n Autonoci\u00f3n Newsletter<\/p>\n No spam. Unsubscribe anytime. Privacy policy (opens in new window)<\/a><\/p>\n That\u2019s the annual draw of three to four households, which sounds like nothing until you remember the wattage was never the point of this pilot. The mounting hardware was.<\/p>\n Train passes<\/p>\n 11,000+<\/p>\n Trains over the panels since April 2025. Zero recorded incidents, per Swissinfo.<\/p>\n Output so far<\/p>\n 16,000+ kWh<\/p>\n Fed into the local grid since May 20, 2025, despite about a month offline. The annual draw of three to four households.<\/p>\n Module removal<\/p>\n ~10 min<\/p>\n Time to unhook a three-panel, six-meter module from both the track and the grid.<\/p>\n TARGET<\/p>\n Swiss network potential<\/p>\n 1 billion kWh\/yr<\/p>\n Sun-Ways\u2019 estimate for ~5,320 km of track: 300,000 households, about 2% of Swiss electricity.<\/p>\n The operator\u2019s one-year verdict is that nothing happened<\/p>\n Startups grade their own homework generously. Rail operators don\u2019t. TransN, the public transport company of canton Neuch\u00e2tel, told Swissinfo by email that the system hasn\u2019t clashed with anything in a year of service: not the infrastructure, not maintenance work, not train traffic.<\/p>\n The assessment came from company spokesperson Aline Odot, and in railway language that counts as a rave review.<\/p>\n Glare was supposed to be the deal-breaker. The International Union of Railways flagged it early on, along with micro-cracks and fire risk, and Sun-Ways responded with a tougher panel build and an anti-reflective coating. One year in, TransN says not a single driver has reported being dazzled.<\/p>\n Swiss Federal Railways, which runs most of the national network, is monitoring the project without joining it. The state operator prefers to put its own solar on things that don\u2019t get run over: station roofs, noise barriers, maintenance centers. Which is exactly the posture you\u2019d expect from a giant public railway. Watch closely, sign nothing, let the startup carry the risk.<\/p>\n Ten minutes to pull a module, and the cleaning system fired itself<\/p>\n Maintenance access is what killed most previous solar-on-track concepts. Rails need grinding, sleepers need swapping, welds need redoing, and no operator will accept panels that turn a two-hour repair into a two-day argument with an installer.<\/p>\n Sun-Ways\u2019 answer is that everything comes apart fast. With dedicated tools, a crew can unhook a module of three panels, about six meters (20 feet) of hardware, from both the track and the power grid in roughly ten minutes.<\/p>\n Laying the things down is even quicker. Scheuchzer, the Swiss track-maintenance firm, built a dedicated machine called PUMA that Sun-Ways says can install up to 150 panels an hour, unrolling them along the track like carpet.<\/p>\n Cleaning turned out to be a problem that solved itself. The original plan was a cylindrical brush bolted to the back of trains to sweep dust off the cells. Scuderi told Swissinfo they scrapped it after noticing that the slipstream from every passing train blows the panels clean on its own. The cleaning crew is the timetable.<\/p>\n SNCF signed in February. Italy wants a pilot running by December<\/p>\n