Large scale low‐cost green hydrogen production using thermal energy storage and polymer electrolyte membrane electrolysis systems

With increased dominance of renewable energy in developed countries, there is frequency excess electricity and grid inflexibility. Without sufficient storage, assets become stranded. aims for net-zero carbon emissions, countries are looking to green hydrogen replace fossil fuels. A combined system affordable large scale storage electrolysis proposed address these issues. An original approach, using low-cost wholesale thermal proton exchange membrane electrolysis, has been modelled. price control mechanism used the operation an electric system. 1600 MW connection provides power resistance heating charge 45 GWh capacity which powers a 20 rated steam turbine. This then 17.5 electrolyser, compression during high-cost periods. Grid charges Model simulation data allows calculation lifecycle costs levelized cost hydrogen, lead profitability analyses. Results simulations give lower than those current projected production methods. Simulation evidence that initial investment 64.4 million US dollars, could yield 1.14$/kg 5.2 tonnes/day 230% return on capital, through use energy.