The design space for long-duration energy storage in decarbonized power systems

Long-duration energy storage (LDES) is a potential solution to intermittency in renewable generation. In this study we have evaluated the role of LDES decarbonized electricity systems and identified cost efficiency performance necessary for substantially reduce costs displace firm low-carbon Our findings show that capacity discharge are most important parameters. Charge/discharge charge play secondary roles. Energy must be ?US$20 kWh–1 by ?10%. With current demand profiles, ?US$1 fully all modelled generation technologies. Electrification end uses northern latitude context makes full displacement more challenging requires combinations unlikely feasible with known Finally, greatest impact on durations exceeding 100 h. Wind solar complemented combination generating capacity. Here, Sepulveda et al. assess economic value system wide range possible long-duration technologies, providing insights guide innovation policy.