Hess to supply trolleybuses in Lausanne, Switzerland January 28, 2019 | Europe News Switzerland-based Hess has secured a CHF16.5 million contract to supply 12 lighTram 25 DC articulated trolleybuses in Lausanne, Switzerland. The contract includes an option to supply an additional lig... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password