Next-Generation Geothermal Field Tests & Resource Characterization

Next-Generation Geothermal Field Tests and Geothermal Resource Characterization (DE-FOA-0003472) is DOE's 2026 flagship geothermal field-test solicitation, issued through the Office of Geothermal. The first round makes up to $171.5 million available, with Topics 1 and 6 open and Topics 2 through 5 closed for this round. Awards run from $4 million to $25 million per project and are aimed at US-registered for-profit firms, nonprofits, universities, and research organizations. The scope centers on enhanced geothermal systems field tests and drilling for resource exploration, with the stated reach extending to geothermal and hydrothermal resources. The NOFO remains open for up to 72 months with annual review cycles. Applications moved through login.gov and EERE Exchange, with the letter of intent due March 27, 2026, full applications due May 14, 2026, and selections expected July 30, 2026. For applicants, the practical signal is clear: this is a large, capital-intensive DOE route for teams that can run field-scale geothermal work and carry a project through staged federal review.

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