<p>HydroFLEX represents a £7m private sector investment by Porterbrook 
in a zero emission alternative to diesel powered trains. By retaining 
the capability of using overhead wires as a power source, HydroFLEX can 
extend the electrified railway to non-electrified routes but without the
 need for costly and disruptive infrastructure upgrades. </p>
<p>The design and build of the train is being undertaken by UK 
suppliers, protecting existing jobs and kick-starting the creation of an
 hydrogen rail supply chain.</p>