Q&A - RWE: exploring the hydrogen storage landscape6 Aug 2024 12:08
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Ongoing funding reliance is not sustainable. Our goal is to evolve to a point where projects can stand economically without subsidy support. Achieving this hinges on market maturation and favorable regulatory developments that reduce uncertainty and enhance investor confidence.
How does the transition of existing salt caverns from natural gas to hydrogen storage look like?
Repurposing salt caverns for hydrogen storage isn't as straightforward as repurposing pipelines. While the caverns themselves can be used for hydrogen, which is advantageous, the real challenge lies in adapting the above-ground infrastructure, particularly the injection and withdrawal capacities. In natural gas storage, we typically operate with about 10 caverns per site. If we were to repurpose these sites for hydrogen without careful planning, switching off even one of these sites could create a significant security of supply issue for natural gas market.
To avoid this, we need to develop new injection and withdrawal capacities specifically tailored for hydrogen, which also involves different cleaning processes. Therefore, to ensure the security of natural gas supply and facilitate the transition to hydrogen, it's essential to develop hydrogen-specific facilities adjacent to or integrated with existing natural gas infrastructure. The development of hydrogen storage projects, particularly pioneering initiatives, heavily depends on securing funding commitments. Major commercial projects are currently awaiting final funding approvals, and additional financial support will be crucial for advancing these first-mover projects. It's noteworthy that none of the salt cavern projects are planning to repurpose entire natural gas storage facilities, highlighting the complexities involved in this transition.
Can you discuss RWE's plans to expand its hydrogen storage capabilities in Europe?
Our plans for expanding hydrogen storage capabilities hinge on two critical factors. Firstly, the presence of suitable salt layers where caverns can be constructed is paramount. Equally important is proximity to customer areas, which dictates the viability of these projects. Regions like North Rhine-Westphalia in Germany are particularly favorable due to their close proximity to significant customer bases. The chemical triangle in Saxony-Anhalt, near our current storage facilities, also presents opportunities with existing caverns and potential for expansion. Eastern Germany similarly offers potential with ample caverns for repurposing and a growing demand base. Ultimately, our strategy revolves around aligning storage locations with customer proximity to optimise supply economics and support industrial needs effectively.
What does your customer base look like?
Initially, our focus is on industrial customers, particularly refineries and the steel industry. These sectors are at the forefront of needi