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Cache Energy is an American energy technology company based in Champaign, Illinois, that develops long-duration energy storage (LDES) systems. Founded in 2021, the company utilizes a thermochemical energy storage (TCES) process to capture and discharge industrial-grade heat using limestone-derived pellets. The technology is designed to provide a carbon-neutral alternative for "hard-to-abate" industrial sectors such as cement and steel manufacturing.^[1][2]

Cache Energy was founded in 2021 by Arpit Dwivedi.^[3] The company was initially part of the 2023–2024 Tech Deployment Track with Launch Alaska and later joined the Halliburton Labs collaborative ecosystem to scale its manufacturing and supply chain operations.^[4]

In June 2024, the company announced the close of a seed funding round led by Voyager Ventures, bringing its total capital raised to $8.5 million. Other institutional investors include the Grantham Foundation, MUUS Climate Partners, Cantos Ventures, and Evergreen Climate Innovations.^[5]

As of 2026, Cache Energy has launched several high-profile pilot projects:

• University of Minnesota Morris: In March 2026, the company deployed the first thermochemical storage system at a U.S. university to provide building-scale heating.^[6]
• Anchorage, Alaska: A demonstration unit was installed at a Halliburton facility to test the technology's reliability in extreme cold-weather conditions.^[7]

The company has received multiple awards from the U.S. Department of Energy (DOE), including inaugural American-Made Energy Storage Innovations Prize in 2023.^[8] First prize at the 2024 EPIC Prize Collaboration Event^[9] held at the White House and the 2022 Energy Storage Innovations Prize.^[10]