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A GreenBuildingAdvisor report published Oct. 6, 2026, describes bipartisan efforts to support geothermal production, led by the Geothermal Energy Advancement Act, H.R. 5631. The bill combines six earlier proposals, but the available report does not specify its provisions, legislative status or prospects for passage.
Bipartisan lawmakers are pursuing a package of bills to expand geothermal production, led by the Geothermal Energy Advancement Act, H.R. 5631, according to a report published Oct. 6 by GreenBuildingAdvisor. The effort matters because geothermal retains federal clean-energy tax incentives that face tighter timelines for wind and solar, though the available information does not establish whether the legislation has advanced or what specific provisions it would enact.
The GreenBuildingAdvisor report describes H.R. 5631 as the most notable proposal in a broader, bipartisan effort to support geothermal energy. It says the act combines six previously proposed bipartisan bills, all focused on geothermal production. The source material does not name those bills or explain the package’s individual policy mechanisms, so its effects cannot yet be assessed in detail.
The report places the proposals against the changing schedule for federal clean-electricity tax credits under the One Big Beautiful Bill Act, which it says became law in 2025. Credits 45Y and 48E remain available to geothermal projects on terms that the report characterizes as largely unchanged. For wind and solar, the report says projects starting construction after July 5, 2026, must be in service by the end of 2027 to qualify for the 45Y credit.
For technologies other than wind and solar, the report says projects must begin construction before 2033 to receive the full credit, with incentives declining in subsequent years. These are descriptions of the law’s tax-credit timelines in the source; they do not establish that every geothermal project will qualify. Eligibility depends on the applicable rules and project circumstances, which the supplied material does not detail.
Geothermal’s Longer Credit Window
Stable tax incentives can influence project planning because energy developers and utilities typically make decisions over long timelines. GreenBuildingAdvisor reports that geothermal was spared much of the tax-credit rollback affecting wind and solar, leaving developers a longer period to qualify for full incentives. That may make geothermal a more attractive option for some planned power projects, but the report offers no figures on investment, capacity or expected cost reductions attributable to the credits.
The policy debate also concerns the potential role of enhanced geothermal systems, which the report identifies as a possible route to expanding the resource. Such systems are intended to access geothermal heat beyond locations where conventional resources are readily available. The source says increased development could propel the technology to greater use; that is a prospect, not a confirmed outcome of the pending legislation.
For readers following clean-energy markets, the distinction is practical: a favorable tax-credit schedule is not the same as a built project. Permitting, financing, technical performance and grid planning still shape whether proposed developments become operating power plants. The bipartisan effort signals political interest, but the details and passage of H.R. 5631 would determine whether it changes those conditions.
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Tax Credits and Earlier Commitments
According to GreenBuildingAdvisor, the One Big Beautiful Bill Act set sunset periods for clean-energy tax credits, including 45Y, a production credit, and 48E, an investment credit. The report says 45Y will not disappear entirely until 2036, while the rules set different construction deadlines for wind and solar compared with other technologies. Those distinctions form the policy backdrop for lawmakers’ attention to geothermal.
Geothermal received a supportive response from industry advocates when the tax framework was enacted. In a July 2025 press release cited by the report, Geothermal Rising’s executive director said the incentives offered long-term certainty to the industry. The group argued that stable credits could help developers commit capital, utilities incorporate geothermal into resource plans and workers apply existing skills. Those remarks express the organization’s view of the policy’s likely benefits, rather than evidence that those outcomes have already occurred.
“This framework delivers the long-term certainty our industry has pursued for years.”
— Geothermal Rising executive director, in a July 2025 press release quoted by GreenBuildingAdvisor
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Bill Details and Passage Status
The available source material does not give the text of H.R. 5631, list the six bills it combines or specify the measures they would create. It also does not identify the bill’s sponsors, committee referrals, hearing schedule, vote count or current legislative status. It is not clear whether the package has been introduced, advanced in committee or scheduled for a vote from the supplied report excerpt.
The material likewise provides no project pipeline, funding estimate or forecast for how much geothermal capacity the proposals could add. GreenBuildingAdvisor says enhanced geothermal development could raise the resource’s profile, but the scale and timing of any expansion remain uncertain. The tax-credit rules’ application to individual projects is also not described in detail.
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Congressional Steps and Project Plans
The next indicators will be the bill’s full text and any action by the House committees responsible for energy and tax policy. Committee hearings, amendments, a reported bill or a floor vote would clarify what H.R. 5631 proposes and whether bipartisan backing translates into legislative progress. The source material does not provide a date for any such step.
Developers and utilities will also need to make project-specific decisions under the existing tax-credit rules. Future announcements about financing, construction timelines and utility procurement could show whether the incentives are prompting new geothermal activity, but no such outcomes are confirmed in the material provided. Readers should distinguish proposed policy from enacted changes and planned projects from operating facilities.
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Key Questions
What is the Geothermal Energy Advancement Act?
GreenBuildingAdvisor identifies H.R. 5631 as the leading proposal in the current effort and says it combines six earlier bipartisan bills focused on geothermal production. The supplied material does not describe the provisions in detail.
What federal tax credits are relevant?
The report discusses 45Y, a production tax credit for clean electricity, and 48E, an investment credit. It says geothermal was largely spared the changes affecting wind and solar, but project eligibility depends on applicable rules.
Why are wind and solar deadlines part of the story?
The report says wind and solar projects beginning construction after July 5, 2026, must be in service by the end of 2027 to claim 45Y. It describes a later deadline for full credits for technologies other than wind and solar.
Has Congress passed the geothermal legislation?
The available report excerpt does not establish that H.R. 5631 has passed or give its current committee or floor status. Its legislative progress remains unclear from the supplied information.
Will the bill lead to more geothermal power?
The report presents expanded geothermal development as a possibility, particularly through enhanced geothermal systems. It provides no capacity forecast or evidence that the proposed bills have already resulted in new operating projects.
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