100% renewable targets will require power storage to manage flows on the net
Electrolysers utilise these intermittent power flows to produce H2 gas from water
H2 gas can be stored in large quantities underground and transported via existing gas pipelines
H2 vehicles recharge faster and are more durable than battery powered transport
Growing H2 demand in industrial processes will reduce costs and increase supply

The UK  Department for Transport (DFT), is considering to deploy hydrogen-powered trains.

DFT is trying to accommodate rising passenger demands on non-electrified routes. More than half of the network in the country is not electrified and operated by high-emission diesel trains. Fuel cell powered trains could be thus an elegant solution for the routes where the electrification would be economically unsustainable.

Fourteen zero-emission Htrains will already operate soon in Lower Saxony, Germany.