Grants / Department of Energy / Advanced Research Projects Agency Energy

DE-FOA-0003557: Stimulate Utilization of Plentiful Energy in Rocks through High-temperature Original Technologies SBIR/STTR (SUPERHOT SBIR/STTR)

Closed Closed March 5, 2026 Opportunity DE-FOA-0003557 ☆ Save

This grant is closed. A newer notice from the same program is open now: Unlocking New Levels of Output and Capacity for Key Subsurface Resources (UNLOCK) (DE-FOA-0003630). Status: Closes November 20, 2026 (13 days left). It is in our archive of Advanced Research Projects Agency Energy notices from 2025.

• Award ceiling$4.5 million
• Award floor$314,363
• Total funding$30.0 million
• Expected awards15
• Cost sharingNot required
• Funding typeCooperative Agreement, Grant

Key dates

Who can apply

This opportunity was open to small businesses.

• Small businesses

More grants for small businesses.

Is this a realistic fit?

• Past Advanced Research Projects Agency - Energy awards averaged $1.9 million; this notice allows up to $4.5 million per award.
• Most of the program's money (43% over five years) went to colleges and universities.
• No cost sharing or match is required.

What the grant funds

This is Modification 03 to the NOFO: • Removed indirect cost cap at 15% of Total Project Costs (Section I.H.16) DE-FOA-0003557: Stimulate Utilization of Plentiful Energy in Rocks through High-temperature Original Technologies SBIR/STTR (SUPERHOT SBIR/STTR) To obtain a copy of the Notice of Funding Opportunity (NOFO) please go to ARPA-E eXCHANGE at https://arpa-e-foa.energy.gov. To apply to this NOFO, Applicants must register with and submit application materials through ARPA-E eXCHANGE (https://arpa-e-foa.energy.gov/Registration.aspx). For detailed guidance on using ARPA-E eXCHANGE, please refer to the ARPA-E eXCHANGE User Guide (https://arpa-e-foa.energy.gov/Manuals.aspx). ARPA-E will not review or consider application materials submitted through other means. For problems with ARPA-E eXCHANGE, email ExchangeHelp@hq.doe.gov (with NOFO name and number in the subject line). Questions about this NOFO? Check the Frequently Asked Questions available at http://arpa-e.energy.gov/faq. For questions that have not already been answered, email ARPA-E-CO@hq.doe.gov. Agency Overview: The Advanced Research Projects Agency – Energy (ARPA-E), an organization within the Department of Energy (DOE), is chartered by Congress in the America COMPETES Act of 2007 (P.L. 110-69), as amended by the America COMPETES Reauthorization Act of 2010 (P.L. 111-358), as further amended by the Energy Act of 2020 (P.L. 116-260): “(A) to enhance the economic and energy security of the United States through the development of energy technologies that— (i) reduce imports of energy from foreign sources; (ii) reduce energy-related emissions, including greenhouse gases; (iii) improve the energy efficiency of all economic sectors; (iv) provide transformative solutions to improve the management, clean-up, and disposal of radioactive waste and spent nuclear fuel; and (v) improve the resilience, reliability, and security of infrastructure to produce, deliver, and store energy; and (B) to ensure that the United States maintains a technological lead in developing and deploying advanced energy technologies.” ARPA-E issues this Notice of Funding Opportunity (NOFO) under its authorizing statute codified at 42 U.S.C. § 16538. The NOFO and any cooperative agreements or grants made under this NOFO are subject to 2 C.F.R. Part 200 as supplemented by 2 C.F.R. Part 910.

Category: Opportunity Zone Benefits, Science and Technology and other Research and Development.

Applying now

This notice no longer takes applications. Apply under the newer notice, DE-FOA-0003630, which is open now.

The notice on Grants.gov keeps its full text and attachments, which is useful for planning a resubmission.