Large-scale electricity storage | The Royal Society
Over 300 mentions of Hydrogen in this Royal Society report
Meeting the need for long-duration storage will require very low cost per unit energy stored. In GB, the leading candidate is storage of hydrogen in solution-mined salt caverns, for which GB has a more than adequate potential, albeit not widely distributed.
The fall-back option, which would be significantly more expensive, is ammonia. • The demand for electricity in GB in 2050 is assumed to be 570 TWh/year in most of this report. In principle it could all be met by wind and solar supply supported by hydrogen, and some small-scale storage that can respond rapidly, which is needed to ensure the stability of the transmission grid.
With the report’s central assumptions, this would require a hydrogen storage capacity ranging from around 60 to 100 TWhb (depending on the level of wind and solar supply). The average cost of electricity that is available to meet demand varies very little over this range as the rising cost of wind and solar supply is offset by the decreasing cost of the storage that is needed.
