Britain’s first hybrid battery-diesel train made its first trip on July 21. One the 25th anniversary of operator Chiltern Railways the HybridFLEX was launched, as well as a celebration event at London Marylebone Station. Chiltern is currently an all-diesel operator with an average fleet age of 25 years. A key priority for the operator is to help deliver decarbonisaiton for the UK by investing in innovation.