OFFICIAL NOTICE CONTENT
Opportunity description
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.
FEDERAL BUYER
Buyer and contracting office
Public points of contact
DOCUMENTS & LINKS
Opportunity documents
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NOTICE TIMELINE
GovBidFit change history
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GOVBIDFIT SCREENING LENS
What deserves attention before you spend bid time
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This notice appears to be market research rather than a conventional bid invitation. A capability response, technical feedback or evidence of market interest may matter more than a price proposal at this stage.
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The current feed does not show a program-specific set-aside restriction. That does not remove other eligibility, responsibility, registration or solicitation-specific requirements.
NAICS 541715 · PSC AC11 is the recorded classification. Use it as a screening clue, then compare the actual scope and deliverables rather than treating the code alone as proof of fit.
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The source data includes 1 public contracting contact. Use the solicitation's stated communication rules and deadlines before contacting the buyer.
Questions to resolve next
What this opportunity record tells you
SAM.gov identifies this as a sources sought from DEPT OF DEFENSE. The record was posted on October 23, 2026 and currently lists November 23, 2026 as the response deadline. GovBidFit keeps source facts separate from its matching guidance so you can see what comes from the federal notice.
The listed product or service classification is NAICS 541715 · Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) · PSC AC11. The set-aside field is Unrestricted. These fields help narrow your search, but they do not replace the full solicitation, amendments, attachments, clauses or eligibility language on the official source.
Before deciding to bid
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