Promethean Clay
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Defense Advanced Research Projects Agency (DARPA) is soliciting proposals for Promethean Clay, a program focused on developing new and innovative energy storage systems. This Solicitation seeks revolutionary advances in energy storage through a mechanical and chemical co-design framework, aiming to eliminate rigid exoskeletons and improve performance, safety, and domestic sourcing. Proposals will be awarded as Other Transactions for Prototype Agreements. The final proposal due date is May 6, 2026.
Opportunity Overview
DARPA's Promethean Clay program challenges traditional energy storage system design by emphasizing a mechanical co-design approach. The goal is to overcome the limitations of rigid, heavy exoskeletons, leading to generational improvements in energy storage performance, enhanced thermal resilience and safety, and a pathway for domestic material sourcing and manufacturing. Research should focus on complete energy storage systems, not just individual components, and must address the need to overcome rigid inactive materials. Excluded are proposals for evolutionary improvements or new battery/fuel cell chemistries that do not tackle the rigid material issue. The program aims to transition successful solutions to commercial production and government systems.
Program Structure & Scope
The program is structured into three phases over 48 months: Phase 1 (24 months) for Power Source Design and Validation, Phase 2 (12 months) for Integration, and Phase 3 (12 months) for Application. A preliminary 3-month Phase 0 for security preparation may be required for some performers. Key requirements include developing systems with reduced packaging, free-form design capabilities, and maintaining or surpassing current safety and thermal resilience standards. Deliverables are the energy storage devices themselves, not integrated into other functional devices. All materials and manufacturing must have domestic sourcing pathways.
Contract Details
This opportunity will result in Other Transaction for Prototype Agreements under 10 U.S.C. § 4022. The estimated start date for awards is August 1, 2026, with multiple awards anticipated. The NAICS code is 541715 (Research and Development in the Physical, Engineering, and Life Sciences).
Eligibility & Set-Aside
Non-U.S. organizations are not eligible to participate. While Historically Black Colleges and Universities, Small Businesses, Small Disadvantaged Businesses, and Minority Institutions are encouraged to submit proposals, this solicitation is not set aside for these organizations. Proposers whose efforts involve Controlled Unclassified Information (CUI) must demonstrate compliance with NIST SP 800-171 Rev. 2, verified via SPRS with a score of 88 or higher, as this is a critical prerequisite for award.
Submission & Evaluation
An abstract submission is required as an initial screening step, with a maximum of 6 pages. Only proposers invited after abstract review will be eligible to submit a full proposal. Full proposals consist of a Volume I (Technical and Management Proposal) and a Volume II (Price Proposal). Mandatory oral presentations (30 minutes + 45 minutes Q&A) are required for all full proposal submissions.
- Abstracts are evaluated on Technical Concept and Understanding, and Potential to Achieve Program Goals.
- Full Proposals are evaluated on Overall Scientific and Technical Merit, Potential Contribution and Relevance to the DARPA Mission, and Budget and Price. Compliance with the provided templates and instructions for both technical and pricing volumes, including the use of specific spreadsheets (Attachments F and M), is mandatory.
Key Dates
- Proposal Due Date: May 6, 2026, at 1:00 PM ET.
- Other key dates (Abstract due, Q&A deadline, LOI, Oral Presentation dates) were updated by Amendment 01.
- A recording of the Proposers Day is available for review.
Attachments
Critical attachments include detailed instructions and templates for abstract submission (Attachment B), technical proposals (Attachment D), pricing proposals (Attachment E), Phase 0 cost proposals (Attachment L, M), a schedule of milestones and payments (Attachment I), Other Transaction certifications (Attachment G), a CUI Guide (Attachment K), and a model Other Transaction agreement (Attachment J).
Contact Information
All questions should be directed to Promethean_Clay@darpa.mil.