Scalable Thermochemical Option for Renewable Energy Storage (STORES)

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East Lansing, Michigan
Project Term:
12/01/2021 - 05/31/2024

Technology Description:

The RedoxBlox team will lead the engineering and development of a pilot-scale energy storage platform comprising a thermochemical energy storage module integrated with a gas turbine power generator. In addition, the team will conduct advanced materials and component-level investigations, including a comprehensive analysis of their core thermochemical energy storage material that enables this energy storage technology. Test data collected from intermediate-scale thermal energy storage modules will be used to inform the design, operating parameters, and component selection of the final, integrated, pilot-scale system. This project paves the way for low-cost, long-duration, stationary electrical energy storage that will support grid infrastructure, enhance grid resiliency, and enable a greater share of intermittent renewable resources into the electrical power generation mix.

Potential Impact:

If successful, DAYS projects will provide new forms of long-duration stationary electricity storage systems that enhance grid resiliency, provide low-cost energy capacity, support grid infrastructure, and enable a greater share of intermittent renewable resources in the generation mix.


Long-duration storage can help prevent blackouts and smooth overall grid operation, improving resilience and enhancing grid security.


New, extended storage options could enable greater integration of intermittent renewable energy sources, greatly reducing emissions from the power sector.


Energy storage technologies could help improve grid efficiency and promote the growth of domestic renewable energy sources.


ARPA-E Program Director:
Dr. Halle Cheeseman
Project Contact:
Chris Hagen
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Project Contact Email:

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