Germany: EUR 120.1 million EU Connecting Europe Facility grant for RWE Gas Storage West hydrogen-storage project

Mechanism

RWE Gas Storage West GmbH (RGSW), a subsidiary of RWE AG, operates the Gronau-Epe salt-cavern gas storage site in North Rhine-Westphalia, Germany, which sits on the "9.22.2 RWE H2 Storage expansion Gronau-Epe" Project of Common/Mutual Interest list. The EUR 120.11 million CEF Energy grant, allocated 28 January 2026 as part of a EUR 650 million package across 14 cross-border energy projects, funds conversion of two existing salt caverns to renewable-hydrogen storage with a working-gas capacity of roughly 38 million Nm3 (3,420 tonnes). CINEA characterises it as the first CEF Energy works grant (as opposed to a feasibility study) awarded to a hydrogen project, ahead of a formal grant-certificate ceremony held 22 May 2026 at the Energy Infrastructure Forum. Severity is set at 2/5: the quantum (EUR 120.1 million) is modest relative to large national industrial-subsidy or tariff actions in the register, and the measure is EU development-grant financing for shared energy infrastructure rather than a sector-targeted trade-control or protectionist subsidy.

Downstream implications

• Establishes an EU funding precedent for hydrogen-storage conversion of

existing salt-cavern gas assets, a template other CEF Energy applicants converting legacy gas infrastructure to hydrogen use may follow in subsequent call rounds.

• Adds to the broader 2025-26 wave of EU/national-promotional-bank

infrastructure grants and loans (CEF Energy, CEF Digital, EIB) that make up the development-finance layer of the Western industrial-policy stack.

Open questions

• No public breakdown yet of the RGSW project's total capex versus the

EUR 120.1 million EU contribution share.

• Expected in-service date for the converted hydrogen-storage capacity

is not disclosed in the primary source.