Cited by 10Hybrid Renewable Energy SystemsIntegrated Energy Systems OptimizationPower Systems and Renewable Energy

Opportunities and constraints of hydrogen energy storage systems

Open access
Dowling, Jacqueline A, Ruggles, Tyler H, Virgüez, Edgar A, Reich, Natasha D, Ifkovits, Zachary P, Davis, Steven J, Li, Anna X, Kennedy, Kathleen M +4 more·2024·Environmental Research: Energy

Abstract

In contrast to battery storage systems, power-to-hydrogen-to-power (P-H 2-P) storage systems provide opportunities to separately optimize the costs and efficiency of the system’s charging, storage, and discharging components. The value of capital cost reduction relative to round-trip efficiency improvements of P-H 2-P systems is not well understood in electricity systems with abundant curtailed power. Here, we used a macro-energy model to evaluate the sensitivity of system costs to techno-economic characteristics of P-H 2-P systems in stylized wind-solar-battery electricity systems with restricted natural gas generation. Assuming current costs and current round-trip P-H 2-P efficiencies, least-cost wind and solar electricity systems had large amounts of excess variable renewable generation capacity. These systems included P-H 2-P in the least-cost solution, despite its low round-trip efficiency and relatively high P-H 2-P power discharge costs. These electricity system costs were not highly sensitive to the efficient use of otherwise-curtailed power, but were sensitive to the capital cost of the P-H 2-P power discharge component. If the capital costs of the charging and discharging components were decreased relative to generation costs, curtailment would decrease, and electricity system costs would become increasingly sensitive to improvements in the P-H 2-P round-trip efficiency. These results suggest that capital cost reductions, especially in the discharge component, provide a key opportunity for innovation in P-H 2-P systems for applications in electricity systems dominated by wind and solar generation. Analysis of underground salt cavern storage constraints in U.S.-based wind and solar scenarios suggests that ample hydrogen storage capacity could be obtained by repurposing the depleted natural gas reservoirs that are currently used for seasonal natural gas storage.

Integrity signals

Registry

Crossref · 10.1088/2753-3751/ad58e5

Cites

65 of 65 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Cites

Flagged first, then by citations

Cited by

Still being checked.

Authors
Dowling, J. A., Ruggles, T. H., Virgüez, E. A., Reich, N. D., Ifkovits, Z. P., Davis, S. J., Li, A. X., Kennedy, K. M., Rinaldi, K. Z., Duan, L., Caldeira, K., & Lewis, N. S.
Affiliations
  • California Institute of Technology (US)
  • Carnegie Institution for Science (US)
  • University of California, Irvine (US)
  • University of Maryland, College Park (US)
Venue
Environmental Research: Energy
Published
2024-07-22
Volume
1
Issue
3
Pages
035004
ISSN
2753-3751 (ISSN-L)
OpenAlex
W4399758895
Cited by
10
References
65
Citations by year
2026: 4 · 2025: 4 · 2024: 2
FWCI
0.79
Type
journal article
Language
en
Open access
Locations
  • Environmental Research Energy (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Gift from Gates Ventures LLC to the Carnegie Institution for Science
  • Fellowship from SoCalGas in support of Low Carbon Energy Science and Policy
  • Gordon and Betty Moore Foundation
Topics
  • Physical Sciences › Energy › Energy Engineering and Power Technology › Hybrid Renewable Energy Systems
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Integrated Energy Systems Optimization
  • Physical Sciences › Energy › Energy Engineering and Power Technology › Power Systems and Renewable Energy
Keywords
hydrogen energy storage, round-trip efficiency, capital cost reduction, techno-economic analysis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review