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DOE Grant Cuts: $7.6B in Climate Awards Canceled, Brimstone Hit

By Climate Tech Signal
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The U.S. Department of Energy has canceled about $7.56 billion in awards that were meant to support 223 climate- and energy-related projects nationwide, a sweeping reversal of funding committed under the Biden administration. 12 The cuts reach across much of the department's clean-energy apparatus. Affected offices include Clean Energy Demonstrations, Energy Efficiency and Renewable Energy, Grid Deployment, Manufacturing and Energy Supply Chains, ARPA-E, and Fossil Energy. 1

The headline figure is large. The details of which projects lost money, and how the remaining industry is responding, explain more about where U.S. decarbonization goes from here.

What was cut

The department did not name the projects whose awards it terminated. A complete list was published separately by Latitude. 1 One analysis counts 321 individual financial awards behind the 223 projects. It describes the move as a deliberate pivot away from programs funded through the Bipartisan Infrastructure Law and the Inflation Reduction Act. 2

The canceled awards touch some of the most ambitious pieces of the previous administration's climate agenda. These include the regional direct air capture (DAC) hubs, carbon capture and storage efforts, and a range of other decarbonization projects. 1 Reporting identifies the South Texas DAC Hub, led by Climeworks, as one casualty. Ørsted's offshore wind projects and green hydrogen initiatives are also cited among the areas hit. 2 One account frames the episode as having halted ten hubs, a sign of how heavily the cuts fell on large-scale, hub-style demonstration programs. 2

Brimstone keeps building

The most telling single case may be Brimstone, a startup developing a lower-carbon process for making Portland cement. Cement production is one of the hardest industrial emissions sources to tackle. Brimstone lost a $189 million DOE grant but says it is moving ahead with its first plant anyway. 4

That decision captures the bind facing climate tech founders right now. Federal demonstration grants were designed to close the "valley of death" between pilot and commercial scale. That stage is where first-of-a-kind plants are too risky for most private lenders. Without that public money, companies must either raise more private capital, shrink their initial scope, or stall. Brimstone's choice to proceed suggests at least some companies believe their technology and market case can stand without Washington. It is too early to say how many others can do the same.

Private money fills some gaps

There are signs that corporate and investor capital is trying to absorb part of the shock, particularly in carbon removal. Climate tech firms raised $80 million for carbon removal as backers in tech and finance moved before expected federal pullbacks on carbon-capture support. 4 United Airlines' venture arm has invested in Heirloom, which uses limestone to draw CO2 from the air, as part of the carrier's climate strategy. 4 Elsewhere, Clearloop is developing solar farms in Tennessee, Mississippi, and Louisiana, states where renewable buildout has lagged. 4

These are meaningful commitments. Still, they are small next to $7.56 billion in canceled federal awards. In this analysis, private capital can keep promising individual companies alive. It is far less suited to financing multi-hundred-million-dollar regional hubs on its own.

Storage tells a different story

The picture is very different in grid-scale energy storage. U.S. installations hit a record 57.6 GWh in 2025. That figure is up 30% from the prior record set in 2024 and roughly four times the volume installed three years earlier, according to a market outlook from the Solar Energy Industries Association and Benchmark Mineral Intelligence. 3 Cumulatively, the U.S. now has 137 GWh of utility-scale storage, along with 19 GWh of commercial and industrial storage and 9 GWh of residential storage. 3 The industry explicitly notes this growth came despite federal actions targeting clean energy. It argues that batteries are now central to grid reliability and to holding down power prices. 3

The reading

Taken together, the evidence points to a split clean-energy economy. Technologies that are already commercially competitive and tied to clear grid needs, especially battery storage, are expanding on market momentum. Earlier-stage, capital-intensive technologies leaned more heavily on federal demonstration money. Those include direct air capture hubs, hydrogen, and novel industrial processes like low-carbon cement, and they are now the most exposed.

The DOE cancellations do not end those technologies. They shift the burden of proving them onto startups, corporate buyers, and private investors. Brimstone building without its grant is an encouraging signal. The real test will be whether enough first plants get financed to bring costs down, or whether the U.S. cedes that learning curve to other markets.

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