OG-AMMTO Critical Minerals & Materials Accelerator

OG-AMMTO Critical Minerals & Materials Accelerator is a joint DOE geothermal and materials effort under CMEI, pairing the Office of Geothermal with the Advanced Materials and Manufacturing Technologies Office. The program is built around geothermal-linked critical minerals and materials work, rather than conventional standalone geothermal generation. The active Topic Area 3 covers mineral extraction from geothermal brines and geothermal applications, with subtopics 3A and 3B inside that lane. The landing page does not disclose a public award range or total pool, but the application track is open to US for-profits, nonprofits, universities, and research organizations. The Topic 3 full-application deadline is July 23, 2026. Its fit is narrow but strategic: teams that can couple geothermal systems with domestic mineral recovery or advanced materials workflows have the clearest path. The LOI deadline was April 24, 2026, and the program sits inside DOE's broader 2026 emphasis on domestic supply chains, so applicants should expect a technically specific review rather than a broad open call.

Each grant below is a distinct funding opportunity with its own eligibility, scope, and deliverables.