Composite Energy Technologies selected for NATO DIANA Mission Track

Composite Energy Technologies has been named one of 15 innovators advancing in NATO DIANA’s 2026 Accelerator Programme, after emerging from more than 3,600 proposals. The selection could speed adoption of CET’s HADALUS autonomous underwater vehicles across Allied missions and support a push for European manufacturing partnerships.

Why it matters: - CET’s selection puts the Rhode Island company in a small NATO-backed group aimed at moving defense technologies toward operational use. - The Mission Track could help accelerate Allied adoption of CET’s autonomous underwater vehicles and strengthen European manufacturing options for the platform. - The program adds credibility to HADALUS as CET scales production and seeks more defense and dual-use customers.

What happened: - Composite Energy Technologies said September 2, 2026, that NATO DIANA selected the company as one of 15 innovators to advance to Mission Track in the 2026 Accelerator Programme. - CET was chosen from more than 3,600 proposals after advancing through DIANA’s Maritime Operations Challenge cohort. - The company is based in Bristol, Rhode Island.

The details: - HADALUS is a modular family of large autonomous underwater vehicles built to provide undersea capability at scale. - The platform uses a flat-pack carbon-fiber architecture that can be shipped in standard containers, assembled near where it is needed and configured for different payloads and missions without redesigning the core system. - CET says the approach lowers logistical burden compared with conventional large AUVs. - Following CET’s participation in Exercise Lanternfish, an AUKUS Pillar II exercise involving Australia, the United Kingdom and the United States, the U.S. Government assessed HADALUS at Technology Readiness Level 7 and Integration Readiness Level 9. - During that exercise, HADALUS supported port protection and mine countermeasure objectives. - CET is scheduled to demonstrate HADALUS in another AUKUS Pillar II exercise in October 2026. - That demonstration will support anti-submarine warfare and autonomous emplacement of distributed seabed sensing and effects payloads. - CET has a U.S. Marine Corps pilot contract for a subsea logistics and resupply variant, including experimentation and training for Marine operators. - Manufacturing is supported by an ISO 9001:2015-certified quality management system and a 4,500-square-meter facility capable of limited-rate production. - CET’s website is More information.

Between the lines: - The selection suggests NATO sees value in technologies that can be produced at scale and adapted quickly for multiple maritime missions. - CET is positioning HADALUS as both a defense platform and a broader dual-use system for survey, scientific observation and environmental monitoring. - The focus on sovereign European manufacturing partnerships signals an intent to reduce dependence on single-country production and ease deployment across the Alliance.

What's next: - CET will use the Mission Track to validate interoperability through NATO and Allied operational exercises. - The company will also work to expand adoption across Allied maritime missions. - CET plans to establish sovereign European manufacturing partnerships to support scaled deployment. - The October 2026 AUKUS exercise will provide another test of HADALUS in an operationally relevant setting.

The bottom line: - CET is moving from prototype validation toward wider NATO and Allied use, with NATO DIANA now acting as a key accelerator for the platform’s next stage.