Hess in chronological order
Hess lighTram 19 OPP Switzerland '2019
Produced in 5 copies
![Hess lighTram 19 OPP [Switzerland] '2019](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_opp/hess_lightram_19_opp_01be002f05cb0459.avif "Hess lighTram 19 OPP [Switzerland] '2019")
![Hess lighTram 19 OPP [Switzerland] '2019](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_opp/hess_lightram_19_opp_8_01a500d9053a03de.avif "Hess lighTram 19 OPP [Switzerland] '2019")
![Hess lighTram 19 OPP [Switzerland] '2019](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_opp/hess_lightram_19_opp_3_0144005403e602ed.avif "Hess lighTram 19 OPP [Switzerland] '2019")
Opportunity charging.
At the final stop the batteries on the roof are automatically recharged for a few minutes with renewable energy. This reduces environmental impact and increases the comfort of passengers and residents.
![Hess lighTram 19 DC [Austria] '2019–24](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_6_007a0000083d0644.avif "Hess lighTram 19 DC [Austria] '2019–24")
![Hess lighTram 19 DC [Austria] '2019–24](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_4_01c9006a03ac02b8.avif "Hess lighTram 19 DC [Austria] '2019–24")
Hess lighTram 25 TOSA France '08.2019–01.2020
Produced in 22 copies
![Hess lighTram 25 TOSA [France] '08.2019–01.2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_25_tosa/hess_lightram_25_tosa_7_05e502be12210dbe.avif "Hess lighTram 25 TOSA [France] '08.2019–01.2020")
TOSA (Trolleybus Optimisation Système Alimentation) stands for power supply optimisation with flash charging along the route.
The batteries on the roof are charged on average at every fourth stop, while the passengers get on and off. This charging process takes only about 20 seconds.
![Hess lighTram 19 DC [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_61_043704910cd809af.avif "Hess lighTram 19 DC [Switzerland] '2020")
![Hess lighTram 19 DC [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_9_00c4000013a90e80.avif "Hess lighTram 19 DC [Switzerland] '2020")
![Hess lighTram 19 DC [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_822.avif "Hess lighTram 19 DC [Switzerland] '2020")
![Hess lighTram 19 DC [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_2_00af000013e90c3c.avif "Hess lighTram 19 DC [Switzerland] '2020")
![Hess lighTram 19 DC [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_19_dc/hess_lightram_19_dc_70_00c8000004590322.avif "Hess lighTram 19 DC [Switzerland] '2020")
![Hess Swisstrolley 5 [Switzerland] '2020](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/swisstrolley_5/hess_swisstrolley_5_3_083103d40aa507e8.avif "Hess Swisstrolley 5 [Switzerland] '2020")
Hess lighTram 25 DC Switzerland '08.2020–03.2021
Produced in 12 copies
![Hess lighTram 25 DC [Switzerland] '08.2020–03.2021](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_25_dc/hess_lightram_25_dc_8_050002db0d3a09f7.avif "Hess lighTram 25 DC [Switzerland] '08.2020–03.2021")
![Interior Hess lighTram 25 DC [Switzerland] '08.2020–03.2021](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_25_dc/hess_lightram_25_dc_9.avif "Interior Hess lighTram 25 DC [Switzerland] '08.2020–03.2021")
![Interior Hess lighTram 25 DC [Switzerland] '08.2020–03.2021](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_25_dc/hess_lightram_25_dc_4.avif "Interior Hess lighTram 25 DC [Switzerland] '08.2020–03.2021")
![Dashboard Hess lighTram 25 DC [Switzerland] '08.2020–03.2021](https://s3.wheelsage.org/format/picture/picture-thumb-medium/h/hess/lightram_25_dc/hess_lightram_25_dc_1.avif "Dashboard Hess lighTram 25 DC [Switzerland] '08.2020–03.2021")
WheelsAge.org '2005–pr.