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Solid-State Energy Conversion from Heat to Electricity Request for Information (RFI)
Defense Advanced Research Projects Agency · DEF ADVANCED RESEARCH PROJECTS AGCY
Respond by: Nov 23, 2026, 4:00 PM (time zone not stated)24 days left
Time zone not stated; FedSub reads it as Eastern time.
From SAM.gov's public data file generated Oct 29, 2026, 3:30 AM UTC; newest notice posted Oct 29, 2026; loaded into FedSub Oct 29, 2026, 5:46 AM UTC
Notice facts
Source: SAM.gov Contract Opportunities public data file
- Solicitation number
- DARPA-SS-27-01
- Notice type
- Sources sought
- Posted
- Oct 23, 2026
- Response date
- Respond by Nov 23, 2026, 4:00 PM (time zone not stated)Time zone not stated; FedSub reads it as Eastern time.
- Set-aside
- None stated
- NAICS code
- 541715 Research and Development in the Physical, Engineering, and Life Sciences
- Product or service code
- AC11
- Place of performance
- Not stated
- Contracting office
- DEF ADVANCED RESEARCH PROJECTS AGCY (HR0011)ARLINGTON, VA 22203
- Agency
- Department of Defense · Defense Advanced Research Projects Agency
Past prime awardees
Source: Award history, not a list of bidders on this notice
Past prime awardees · award history, not a list of bidders on this notice
320 companies held prime contracts from this office under NAICS 541715; 144 of them reported first-tier subawards to companies with NAICS 541715 in FedSub's records.
- CACI, INC. - FEDERAL · Reported first-tier subawards to 393 companies with NAICS 541715 in FedSub's records (latest Sep 2026).
24 more past prime awardees on Professional
Description
Source: SAM.gov Contract Opportunities public data file
The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is requesting information on the current state of the art and technological limitations of solid-state direct thermal-to-electric energy conversion technologies. We define solid state energy conversion as systems that convert a temperature differential directly into electrical energy without utilizing mechanical moving parts (e.g., pistons, turbines, or rotary alternators). This RFI seeks to identify the best possible solid state heat engine performance across a wide operating temperature range, factors that limit performance, and the most attractive use cases if these highly efficient solid state heat engines could be made today. This survey of limits, challenges and use cases will identify opportunities for research and development to inform potential program(s) in this area.
Versions on SAM.gov
Source: SAM.gov Contract Opportunities public data file
Posted Oct 23, 2026Sources soughtCurrent version
Respond by Nov 23, 2026, 4:00 PM (time zone not stated)
This version on SAM.gov (opens SAM.gov in a new tab)