Closed · DE-FOA-0002531 · CFDA 81.135 · Discretionary
Optimizing Nuclear Waste and Advanced Reactor Disposal Systems (ONWARDS) (SBIR/STTR)
Federal grant opportunity posted by Advanced Research Projects Agency Energy, cataloged on Grants.gov.
- $260K-$3.7M
- Award range
- Closed
- Status
- October 7, 2021
- Close date
- -
- Expected awards
The verdict
Optimizing Nuclear Waste and Advanced Reactor Disposal Systems (ONWARDS) (SBIR/STTR) is a closed discretionary listing from Advanced Research Projects Agency Energy that offered $259,613 -- $3,721,115. Future funding cycles may be published under the same CFDA number. PlainGrants indexes 183 other opportunities from Advanced Research Projects Agency Energy.
- $260K-$3.7M
- award range
- Closed
- application status
- 81.135
- CFDA program
- 183
- other opportunities from Advanced Research Projects Agency Energy
Archived opportunity record
Optimizing Nuclear Waste and Advanced Reactor… is closed (last close October 7, 2021). The parent program page for CFDA 81.135 is the reliable place to catch re-announcements. Advanced Research Projects Agency Energy still indexes 183 other opportunities here.
According to Grants.gov (extract vintage 2026-08-10), this record reflects the officially published listing. See methodology.
Deadline tracker
Application window closed
Closed October 7, 2021
Instrument
Cooperative Agreement
Description
To obtain a copy of the Funding Opportunity Announcement (FOA) please go to the ARPA-E website at https://arpa-e-foa.energy.gov. To apply to this FOA, Applicants must register with nd 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 concept papers submitted through other means. For problems with ARPA-E eXCHANGE, email ExchangeHelp@hq.doe.gov (with FOA name and number in the subject line). Questions about this FOA? 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. To read this FOA in its entirety, please go to the ARPA-E website at https://arpa-e-foa.energy.gov. Questions about this FOA? 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. The purpose of this modification is to incorporate changes to Funding Opportunity Announcement. Accordingly, this modification, • Inserted certain deadlines, including the deadlines for submitting questions and Full Applications, see Cover Page and Required Documents Checklist. • Clarified Unit Measurement. See Section I.E.II of the FOA. • Included additional information on Technical Performance Targets. See Section I.F of the FOA. • Revised the Required Documents Checklist and Sections IV.D, IV.E, and IV.G of the FOA to provide guidance on required application forms and the content and form of Full Applications and Replies to Reviewer Comments. Applicants are strongly encouraged to use the templates provided on ARPA-E eXCHANGE (https://arpa-e-foa.energy.gov). • Inserted criteria that ARPA-E will use to evaluate Full Applications, see Section V.A.2 of the FOA. • Inserted criteria that ARPA-E will use to evaluate Replies to Reviewer Comments in Section V.A.3 of the FOA. • Inserted information on the anticipated announcement and award dates, see Section V.C of the FOA. • Inserted information concerning Full Application Notifications, see Section VI.A.3 of the FOA. • Inserted Administrative and National Policy Requirements, see Section VI.B of the FOA. • Inserted Reporting Requirements, see Section VI.C of the FOA • Updated information on Title to Subject Inventions, see Section VIII.A of the FOA.
Small-business / for-profit corridor · DE-FOA-0002531
Optimizing Nuclear Waste and Advanced Reactor… prints a for-profit / small-business applicant door (Small businesses). Treat the listing as business-facing unless the full Grants.gov announcement narrows it further. The extract does not mark applicant cost-sharing as required. Instrument: Cooperative Agreement. Funding-activity codes span Opportunity Zones · Science and Technology / R&D (OZ;ST). 35 other Advanced Research Projects Agency Energy listings share this eligibility-code string (19% of 184).
- Code 23
- Small businesses
Codes are Grants.gov eligibility category values from the extract vintage 2026-08-10. Confirm the full eligibility statement on the official listing or the Grants.gov eligibility reference.
Official Listing on Grants.gov
View full details, application forms, and submission instructions.
Parent Grant Program
Environmental Cleanup
U.S. Department of Energy
Agency Contact
ARPA-E Contracting Officer arpa-e-co@hq.doe.gov
More from Advanced Research Projects Agency Energy
What to do next
Optimizing Nuclear Waste and Advanced Reactor… is closed; use the parent program and agency catalog for the next funding cycle.
- Parent CFDA 81.135 may publish future NOFOs under the same assistance listing. Open program
- Environmental Cleanup indexes 2 Grants.gov listings in this extract. Program profile
- Advanced Research Projects Agency Energy lists 183 other indexed opportunities on PlainGrants. Agency catalog
Opportunity deadlines and eligibility change on Grants.gov; PlainGrants mirrors the extract and is not the submission system.
Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.
Read our methodology - how this data is sourced, computed, and verified.
| Publisher | PlainGrants |
| Sources | the SAM.gov Assistance Listings and Grants.gov |