Answer is blowing in the wind
Hybrid Powered Hospital Boats for every big river on the Planet in the framework of Rapid Response to Climate Change Adaptation
Original Fossil Powered Hospital Boat on the Congo River, now out of use in a shipwarf in Congo, completely rusted.
Hybrid Powered boat in Gent Belgium: HydroThane: Hydrogen / Biogas / Biofuel + PV by Hydrothane: skype SvenAERTS