The Long-Duration Energy Storage Demonstration Initiative and Joint Program is designed to establish a demonstration initiative composed of demonstration projects focused on the development of long-duration energy storage technologies.



Office of Clean Energy Demonstrations

New Program:


Funding amount:


Funding Mechanism:

Grant, Cooperative Agreement, or Other


Technology Developers, Industry, State and Local Governments, Tribal Organizations, Community Based Organizations, National Laboratories, Universities, and Utilities.

Period of Availability:

Available until expended

More Information

Projects that --

(i) demonstrate promising long-duration energy storage technologies at different scales; and

(ii) help new, innovative long-duration energy storage technologies become commercially viable.

Lab Call Announcement ($30m) for Long Duration Energy Storage Demonstrations. 

Lab Call Announcement ($30m) for Long Duration Energy Storage Demonstrations Letters of Intent are due by Nov 2, 2022 at 5 p.m., ET.

Additional funding anticipated application opening date is Q4 of CY 2022.

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