“Ascendance, L.I.M.E Consortium Awarded EUR5 Million Grant By Europe’s Clean Aviation Program”
France-based Ascendance Technologies alongside the L.I.M.E Consortium (Lithium-based Innovation for Modular Energy) Project, has been awarded a EUR5 million grant by Europe’s Clean Aviation Program, reports a press release.
This Ascendance-led Consortium and its partners EXOES, Basquevolt and Chair of Production Engineering of E‑Mobility Components (PEM) of RWTH Aachen University, has been selected to drive the next wave of hybrid-electric propulsion innovation in Europe.
The release states, “This recognition, awarded after a competitive European call for proposals, reflects the strong engagement and endorsement from major aircraft manufacturers (CS-25 and CS-23) who supported the application and have spotlighted the foundational strength of Ascendance’s hybrid electric innovative technologies.

Jean-Christophe Lambert, CEO of Ascendance, “We’re honoured by Clean Aviation’s decision and the trust expressed by the sector and our consortium partners. Their support affirms both Ascendance’s expertise and the market’s belief in the STERNA Hybrid Pack as a catalyst for cleaner air transport.”
The grant is to support the development and demonstration of an aviation-grade battery system for hybrid-electric propulsion, primarily targeting next-generation regional aircrafts with entry into service expected by 2035.
The L.I.M.E project addresses six key objectives for the aerospace industry:-
: Safety & End-User-Centric Design -Design a battery system that meets stringent certification standards and user requirements for aviation, especially CS25 applications.
: Disruptive Battery Innovation - Push the boundaries of current technology with a battery system surpassing existing capabilities in cell technology, thermal management and composite casing.
: TRL4 Prototyping - Manufacture and test a TRL4 prototype including cell blocks, battery management and thermal systems, followed by ground demonstrations.
: Digital Twin Agility - Utilise high-fidelity digital twins to optimise development, reduce costs and minimise physical prototyping, ensuring rapid design validation.
: Roadmap to Entry Into Service - Support integration studies and create an industrialisation plan to prepare the battery system for service in regional aircrafts, specifically targeting the ATR 42/72 for entry into service by 2035
: Maximise European Impact - Advance critical aviation technology to benefit European society, economy, and competitiveness by disseminating research and results widely.

Jean-Christophe Lambert
Lambert concluded, “Through the STERNA Hybrid Pack and the collaborative work within the Consortium, we are demonstrating that European innovation can lead the way in delivering the next generation of clean, high-performance aviation solutions.”
For more information
https://www.ascendance-ft.com/products/sterna
(Top image: Applications for fixed-wing aircraft)
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