Engineering and Technology

The value of long-duration energy storage under various grid conditions in a zero-emissions future

M. Staadecker, J. Szinai, et al.

This study, conducted by Martin Staadecker, Julia Szinai, Pedro A. Sánchez-Pérez, Sarah Kurtz, and Patricia Hidalgo-Gonzalez, reveals significant insights into the role of long-duration energy storage (LDES) in zero-emission electricity grids. With findings highlighting its value in specific generation mixes and the potential for drastic electricity price reductions during peak demand, this research is a game changer for grid planners.

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Abstract

Long-duration energy storage (LDES) is crucial for zero-emission electricity grids, but its role in different grid types is unclear. This study uses the Switch capacity expansion model to analyze a zero-emissions Western Interconnect, exploring LDES value across 39 scenarios with varying generation mixes, transmission expansion, storage costs, and mandates. Key findings include LDES's particular value in predominantly wind-powered or hydropower-diminishing regions, cost-effectiveness of seasonal storage below US$5 kWh⁻¹, and significant electricity price reductions (over 70%) during peak demand with year-long storage mandates. Results offer grid planners valuable guidance on LDES's impact.

Publisher

Nature Communications

Published On

Nov 03, 2024

Authors

Martin Staadecker, Julia Szinai, Pedro A. Sánchez-Pérez, Sarah Kurtz, Patricia Hidalgo-Gonzalez

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