Why are solar panels being installed on railway tracks #technology #railworks #shortsvideo

Why are solar panels being installed on railway tracks #technology​ #railworks​ #shortsvideo​#didyouknow​ #youtubeshorts​ #amazingfacts​ #sunwaysurfers​ #solarsystem​ #solarenergy​ #railwayinnovation​ #techinnovation​ #futureenergy​