S. 4406, the Next-Generation Geothermal Research and Development Act, advanced out of committee on September 30, 2026.
S. 4406 — Next-Generation Geothermal Research and Development Act
What it does
This bill amends federal geothermal energy research law to expand funding and focus on next-generation geothermal technologies—particularly enhanced geothermal systems, closed-loop systems, and supercritical geothermal (systems operating at extreme temperatures and pressures). It authorizes $5 million annually through 2031 for research grants, establishes a geothermal center of excellence, requires the U.S. Geological Survey to assess geothermal resources nationwide including supercritical potential, and directs the Department of Energy to support deep drilling projects and data sharing across federal agencies.
Quorum's transparency scan gave Next-Generation Geothermal Research and Development Act a moderate transparency flag.
What happens next
S. 4406 advanced out of committee. Next stop: a floor vote.
Who is behind it
Filed by Catherine Cortez Masto. Cosponsored by Lisa Murkowski.
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