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On-orbit Nuclear Power Concepts Workshop

ID: DARPA-SN-26-21 • Type: Special Notice • Match:  95%
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Description

Posted: Jan. 12, 2026, 10:17 a.m. EST
The Defense Advanced Research Projects Agency (DARPA) Tactical Technology Office (TTO) is requesting information regarding technologies, spaceflight qualification testing, safe handling, and applications for on-orbit satellite nuclear power systems. Our focus is on producible, cost-effective nuclear reactors not bespoke designs suited for a one-time demonstration.
DARPA TTO and the Department of Energy (DOE) will also hold a workshop to establish a common understanding of on-orbit nuclear power technology and challenges, facilitate community interactions and collaboration, and identify key technology risk areas that, if addressed, would enable practical implementation of on-orbit nuclear power. The workshop will be held on April 21-22, 2026 at the DARPA Conference Center (DCC), 675 N Randolph Street, Arlington, VA 22203.
Posted: Dec. 18, 2025, 12:57 p.m. EST
Background
The Defense Advanced Research Projects Agency (DARPA) Tactical Technology Office (TTO) is seeking information on technologies related to on-orbit satellite nuclear power systems. The focus is on developing producible and cost-effective nuclear reactors rather than bespoke designs for one-time demonstrations.

DARPA TTO, in collaboration with the Department of Energy (DOE), will host a workshop aimed at fostering a common understanding of on-orbit nuclear power technology, addressing challenges, and identifying key technology risk areas that could facilitate practical implementation.

Work Details
The contract involves the following tasks:
1. Development of reactor designs that comply with nuclear safety requirements as outlined in National Security Presidential Memorandum-20 and Space Policy Directive-06.
2. Provision of concepts and insights for an initial technology demonstration, including identification of necessary data collection and instrumentation for testing nuclear power systems.

Respondents are encouraged to submit white papers that provide actionable insights while adhering to specified guidelines regarding format and content.

Place of Performance
DARPA Conference Center (DCC), 675 N Randolph Street, Arlington, VA 22203.

Overview

Agency
Defense Advanced Research Projects Agency (DARPA) [DoD]
Response Deadline
Feb. 20, 2026, 11:00 a.m. EST (original: Feb. 6, 2026, 11:00 a.m. EST) Past Due
Posted
Dec. 18, 2025, 12:57 p.m. EST (updated: Jan. 12, 2026, 10:17 a.m. EST)
Set Aside
None
NAICS
541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
PSC
AC12 - National Defense R&D Services; Department Of Defense - Military; Applied Research
Place of Performance
675 N Randolph Street Arlington, VA 22203 USA
Source
Open
Current SBA Size Standard
1000 Employees
Pricing
Multiple Types Common
On 12/18/25 Defense Advanced Research Projects Agency issued Special Notice DARPA-SN-26-21 for On-orbit Nuclear Power Concepts Workshop due 2/20/26.
Primary Contact
Name
TTO BAA Coordinator   Profile
Email
darpa-sn-26-21@darpa.mil
Phone
None

Documents

Posted documents for Special Notice DARPA-SN-26-21

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Additional Details

Source Agency Hierarchy
DEPT OF DEFENSE > DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) > DEF ADVANCED RESEARCH PROJECTS AGCY
FPDS Organization Code
97AE-HR0011
Source Organization Code
500035490
Last Updated
Jan. 12, 2026
Last Updated By
darpa.fbo.gov@darpa.mil
Archive Date
Sept. 1, 2026