Compressed Air Energy Storage (CAES) for Large Scale Power Storage - Developments in Germany and Europe

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Recording of Tuesday, June 18, 2024 | The smarter E Europe | Conference Program | Language: English | Duration: 14:57 .

Klemens Kaar presents innovative compressed air energy storage (CAES) technology to accelerate de-carbonization and enhance grid security

Klemens Kaar, Project Development Director for Corre Energy in Germany, discusses compressed air energy storage (CAES) technology. Corre Energy is a European company focused on innovative long-duration energy storage projects to enhance grid security and accelerate decarbonization. CAES stores excess renewable energy by compressing air into subsurface cabins and releases it during high demand via turbine expanders, generating electricity back into the grid. The process includes managing heat released during compression and addressing the cooling effect from decompression using hydrogen co-firing. CAES is positioned between pumped hydro and battery systems in terms of capacity and duration flexibility. Currently, Corre Energy develops projects in Holland, Denmark, and Germany—the latter aiming to establish a large-scale facility by 2030 near Aarhus due to its strategic location amidst rising power consumption areas. The German project features multiple phases with initial capacities of 200 MW for compression and 300 MW for generation; ultimately doubling these figures as part of future expansions. Key considerations include leveraging existing salt caverns for storage while integrating closely with local infrastructure like the hydrogen backbone network Get H2 Startnet—highlighting significant potential across Northern Europe including regions like France, Spain, Portugal, Romania's northern Alps area.

Automatisierte Zusammenfassung durch AI Conver

As the world embraces renewables, and particularly large-scale, variable solar and wind power, grid-scale storage, especially batteries, become key. This session will provide insights into improved network development plans and flexibility strategies, address grid congestion and effective capacity management. Delve into case studies of successful deployment strategies and business models for the seamless integration of storage, enhanced grid stability and optimized energy management. Join us for insightful discussions on the future of energy storage, system costs, integration timelines, and the dynamic landscape of large, grid-scale storage.

Further Talks of this session:

Speaker

Patrick Clerens
Secretary General
EASE - The European Association for Storage of Energy
Belgium

To Talk

Speaker

Marcel Schepers
Product Manager Flexibility Marketing
EnBW Energie Baden-Württemberg AG
Germany

To Talk

Speaker

Vitalijus Baranskas
Chief Technical Officer
Energy cells JSC
Lithuania

To Talk

Speaker

Sankara Subramanian
ESS- Utility Market Leader
Saft Batteries
France

To Talk

Speaker

Sankara Subramanian
ESS- Utility Market Leader
Saft Batteries
France

Rimvydas Stilinis
CEO
Energy cells JSC
Lithuania

Conference Partner

Marcel Schepers
Product Manager Flexibility Marketing
EnBW Energie Baden-Württemberg AG
Germany

Patrick Clerens
Secretary General
EASE - The European Association for Storage of Energy
Belgium

Klemens Kaar
Development Director
Corre Energy
Germany

To Talk

Weiterführende Inhalte
The smarter E Europe Conferences 2026
Panel Discussion of the Session: Turning Industrial and Commercial Demand Side Flexibility into Value

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The smarter E Europe Conferences 2026 | Conference Program

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Industrial and commercial flexibility is no longer experimental - it is becoming a core part of network operation and market participation. Across Europe, DSOs, transmission system operators (TSOs), aggregators and retailers are moving from isolated pilots to coordinated programs that avoid grid upgrades and deliver real capacity and financial value for all participants.This session focuses on the operational integration of C&I flexibility into routine grid workflows through dispatch, settlement, verification and commercial models. It highlights how flexibility is embedded in daily operations: from automated dispatch and verification tools to new contractual models that reward large energy users for adapting consumption. You will gain insight into replicable approaches for scaling flex portfolios, integrating them into control-room workflows and ensuring fair value-sharing across utilities, service providers and industrial consumers.

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