keynote address

DOE announces geothermal initiative, community-focused pilot at Houston energy conference

U.S. Secretary of Energy Jennifer M. Granholm made two big announcements at her CERAWeek address. Photo via Jennifer Granholm/X

The Department of Energy announced two major initiatives at U.S. Secretary of Energy Jennifer M. Granholm's address earlier this week at CERAWeek by S&P Global.

The first announcement Granholm revealed on Monday, March 18, at her keynote address was the DOE's latest Pathways to Commercial Liftoff report, which are initiatives established to provide investors with information of how specific energy technologies commercialize and what challenges they each have to overcome as they scale.

"We develop these Liftoff Reports through a combination of modeling and hundreds and hundreds of interviews with people across the whole investment lifecycle—from early-stage capital to commercial banks and institutional investors," Granholm says in her address.

The DOE has released eight already, and the ninth — and Granholm's favorite, she says — is on geothermal energy.

"Geothermal has such enormous potential. If we can capture the 'heat beneath our feet,' it can be the clean, reliable, base-load scalable power for everybody from industries to households," she says.

Geothermal development requires similar skills and infrastructure to traditional oil and gas, meaning the transition should be smooth, she explains, adding that the market is huge for geothermal.

"At scale, this market is significant: We're talking about at least—at least—a $250 billion investment opportunity to meet the goal that we have of 90 gigawatts of capacity by 2050," she remarks.

Granholm's address shifted into acknowledging the negative impact on communities the energy industry's history is paved with. She emphasizes how each of the Biden Administration's laws passed — like the Inflation Reduction Act and the Bipartisan Infrastructure Law — implemented requirements and incentives with communities in mind.

The administration's next initiative, and Granholm's second big announcement, is "to empower communities to build their energy future."

Regional Energy Democracy Initiative, or REDI, as Granholm describes, will "bring together companies, and community groups, and academic institutions, and philanthropy to weave equity and justice into DOE-funded clean energy projects."

The inaugural pilot will be in the Gulf South across Texas and Louisiana. She says the DOE plans to award over $8 billion to regional carbon reduction and clean energy infrastructure projects.

"These structures will provide capacity building, technical assistance to help communities match their most pressing needs with the biggest opportunities…to design and to implement Community Benefits Plans," Granholm says, "in short, really to have a say in how the historic clean energy investments in their backyards are going to benefit their people."

Granholm also noted on the progress of the clean energy sector, including how clean energy investment is three times what it was in 2018 and that in 2024, wind and solar energy in the U.S. is expected to outpace coal generation for the first time.

All this progress, Granholm explains, in light of global events and global energy supply disruption

"But our work together really has to extend beyond crisis management," she says. "Because the sooner that we acknowledge this transition for what it is—an undeniable, inevitable, and necessary realignment of the world’s energy system—the sooner we can capitalize on this incredible opportunity."

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A View From HETI

20+ companies will pitch at Energy Tech Nexus' Pilotathon during Houston Energy & Climate Startup Week. Photo via Getty Images.

There is no sugar‑coating it: 2025 was a rough year for many climate tech founders. Headlines focused on policy rollbacks and IRA uncertainty, while total climate tech venture and growth investment only inched up to about 40.5 billion dollars, an 8% rise that felt more like stabilization than the 2021–2022 boom. Deal count actually fell 18% and investor participation dropped 19%, with especially steep pullbacks in carbon and transportation, as capital concentrated in fewer, larger, “safer” bets. Growth-stage funding jumped 78% while early-stage seed rounds dropped 20%.

On top of that, tariff battles and shifting trade rules added real supply‑chain friction. In the first half of 2025, solar and wind were still 91% of new U.S. capacity additions, but interconnection delays, equipment uncertainty, and changing incentive structures meant many projects stalled or were repriced mid‑stream. Founders who had raised on 2021‑style valuations and policy optimism suddenly found themselves stuck in limbo, extending runway or shutting down.

The bright spots were teams positioned at the intersection of climate and the AI power surge. Power demand from data centers is now a primary driver of new climate‑aligned offtake, pulling capital toward firm, 24/7 resources. Geothermal developers like Fervo Energy, Sage Geosystems and XGS did well. Google’s enhanced‑geothermal deal in Nevada scales from a 3.5 MW pilot to about 115 MW under a clean transition tariff, nearly 30× growth in geothermal capacity enabled by a single corporate buyer. Meta and others are exploring similar pathways to secure round‑the‑clock low‑carbon power for hyperscale loads.

Beyond geothermal, nuclear is clearly back on the strategic menu. In 2024, Google announced the first U.S. corporate nuclear offtake, committing to purchase 500 MW from Kairos Power’s SMR fleet by 2035, a signal that big tech is willing to underwrite new firm‑power technologies when the decarbonization and reliability story is compelling. Meta just locked in 6.6GW of nuclear capacity through deals with Vistra, Oklo, and TerraPower.

Growth investors and corporates are increasingly clustering around platforms that can monetize long‑duration PPAs into data‑center demand rather than purely policy‑driven arbitrage.

Looking into 2026, the same trends will continue:

Solar and wind

Even with policy headwinds, solar and wind continue to dominate new capacity. In the first half of 2025 they made up about 90% of new U.S. electricity capacity. Over the 2025–2028 period, FERC’s ‘high‑probability’ pipeline points to on the order of 90–93 GW of new utility‑scale solar and roughly 20–23 GW of new wind, far outpacing other resources.

Storage and flexibility

Solar plus batteries is now the default build—solar and storage together account for about 81% of expected 2025 U.S. capacity additions, with storage deployments scaling alongside renewables to keep grids flexible. Thermal storage and other grid‑edge flexibility solutions are also attracting growing attention as ways to smooth volatile load.

EVs and transport

EV uptake continues to anchor long‑term battery demand; while transportation funding cooled in 2025, EV sales and charging build‑out are still major components of clean‑energy demand‑side investment

Buildings

Heat pumps, smart HVAC, and efficient water heating are now the dominant vectors for building‑sector decarbonization. Heating and cooling startups alone have raised billions since 2020, with nearly 700 million dollars going into HVAC‑focused companies in 2024, and that momentum carried into 2025.

Hydrogen

The green hydrogen narrative has faded, but analysts still see hydrogen as essential for steel, chemicals, and other hard‑to‑abate sectors, with large‑scale projects and offtake frameworks under development rather than headline hype.

CCS/CCUS

After years of skepticism, more large CCS projects are finally reaching FID and coming online, helped by a mix of tax credits and industrial demand, which makes CCS look more investable than it did in the pre‑IRA era.

So, yes, 2025 was a downer from the easy‑money, policy‑euphoria years. But the signal beneath the noise is clear: capital is rotating toward technologies with proven unit economics, real offtake (especially from AI‑driven power loads), and credible paths to scale—not away from climate altogether.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.

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