The techno-economics potential of hydrogen interconnectors for electrical energy transmission and storage

This research introduces a ‘Hydrogen Interconnector System’ (HIS) as novel method for transporting electrical energy over long distances. The system takes electricity from stranded renewable assets, converts it to hydrogen in an electrolyser plant, transports the demand centre via pipeline, where is reconverted either gas turbine or fuel cell plant. paper evaluates competitiveness of technology with High Voltage Direct Current (HVDC) systems, calculating following techno-economic indicators; Levelised Cost Of Electricity (LCOE) and Storage (LCOS). results suggest that LCOE HIS competitive HVDC construction 2050 distance beyond 350 km case all scenarios 1 GW system. LCOS lower than using large scale storage 6 out 12 analysed, including 2025. was also applied three studies, showing outperforms perspectives cases, has 15%–20% investment costs 2 studies analysed.