Comparative assessment of hydrogen storage and international electricity trade for a Danish energy system with wind power and hydrogen/fuel cell technologies

Surplus electricity from wind power production that cannot be used directly to cover demand, may either be stored for tater use, or traded on the international electricity market. The project considers hydrogen storage, e.g. in underground caverns, for later use, e.g. in fuel cell vehicles. Alternatively, the surpluses may be traded on international markets such as the Nordic Power Pool, and deficits may be bought from neighbouring countries. Hourly time simulations of the future Danish electricity system will be made, using updated versions of existing software, in order to investigate the technical feasibility and economy of the options outlined. Technology updates will be made and the possibility of modifying rules for trade on the international markets will be investigated