Hydrogen fails at day/night balance

Hydrogen fails at the efficiency of the whole cycle from the electrolysis to the fuel cell at the day/night balance for solar electric power. Example with a sea water desalination system.



 The hydrogen side of the caclulator is equipped with the dreams of hydrogen resarch, 85% elektrlolysis, 65% fuel cell and only 1000.-EUR pro kW fuel cell with 50000 hours usage time.

But even the optimistic dreams of hydrogen resarch fail against the new generation of lithium batteries at the total efficiency and the costs for more photovoltaic. Only the old opponent lead acid battery is here clearly beaten.
Parameter Hydrogen OGRON lithium
EUR perkWh electric power storage capacity
EUR per kW peak photovoltaic
kWh yearly yield per kW peak
% interest
% efficiency at storage
Number of full cycles
EUR costs per kWh solar electric power direct
EUR costs per kWh stored
EUR per kWh total
EUR Stromkosten pro m³ Meerwasser (2,5 kWh)