# Unlocking New Levels of Output and Capacity for Key Subsurface Resources SBIR/STTR (UNLOCK SBIR/STTR) (DE-FOA-0003631)

**Plain-English Eligibility Score:** 48/100

| Field | Value |
|---|---|
| Opportunity number | DE-FOA-0003631 |
| Title | Unlocking New Levels of Output and Capacity for Key Subsurface Resources SBIR/STTR (UNLOCK SBIR/STTR) |
| Agency | Advanced Research Projects Agency Energy  |
| Status | posted |
| Posted / open date | 2026-10-21 |
| Close date | 2026-11-20 |
| Award ceiling | $4,630,944 |
| Award floor | $323,090 |
| Estimated total funding | $45,000,000 |
| Funding category | Opportunity Zone Benefits, Science and Technology and other Research and Development |
| Eligible applicants | Small businesses |
| CFDA / Assistance listing | 81.135 |
| Summary | NOFO Number: DE-FOA-0003631 - Unlocking New Levels of Output and Capacity for Key Subsurface Resources SBIR/STTR (UNLOCK SBIR/STTR) To obtain a copy of the Notice of Funding Opportunity (NOFO) please go to DOE eXCHANGE at https://exchange.energy.gov/. To apply to this NOFO, Applicants must register with and submit application materials through DOE eXCHANGE (https://exchange.energy.gov/Registration.aspx). For detailed guidance on using DOE eXCHANGE, please refer to the DOE eXCHANGE User Guide (https://exchange.energy.gov/Manuals.aspx). ARPA-E will not review or consider application materials submitted through other means. For problems with DOE eXCHANGE, email ExchangeHelp@hq.doe.gov (with NOF |
| Agency contact | arpa-e-co@hq.doe.gov |

## Why this score
- Small businesses are listed as eligible applicants.
- Only 13 days until the deadline.

Source: Grants.gov (U.S. Department of Health and Human Services) (https://www.grants.gov/search-results-detail/364135). Last refreshed: 2026-11-05T20:38:38.897Z.
Data from Grants.gov. Always read the full notice of funding opportunity before applying. Informational only; not legal or grant-writing advice.