Long-duration storage could connect offshore wind with British industry

Britain should treat long-duration hydrogen storage as a potential industrial service, with customers paying for dependable supply when renewable output falls. The Netherlands’ €450 million commitment to HyStock shows why storage deserves a place alongside production and pipelines. My position is conditional but clear. For industrial users that need hydrogen, buying reliable delivery could make more commercial sense than taking responsibility for every fluctuation in its production.

Key pointers

• Ask suppliers to quote dependable hydrogen delivery, including storage and transport.
• Separate the amount stored from the rate at which your factory could receive it.
• Require an identified customer and a credible demand profile before backing a storage project.
• Compare hydrogen with direct electrification, thermal storage and electricity storage against the actual industrial task.
• Make responsibility for delayed infrastructure explicit before committing to supply.
• Treat forecasting, metering and contract settlement as potential opportunities for British technology firms.

The Dutch investment addresses a coordination problem

The most useful detail in the Dutch announcement is its explanation of why private investment needs support. Production, transport, consumption and storage must develop together. Without storage, the government argues, hydrogen produced during abundant periods cannot reliably bridge periods of scarcity. Its stated rationale concerns the functioning of the whole market.

That matters to British industrial buyers. Consider a hypothetical manufacturer evaluating a hydrogen-dependent process. A production contract alone would leave important questions unanswered. Can fuel reach the site during a production interruption? Who reserves the necessary storage? What happens if the pipeline opens after the factory’s new equipment arrives?

My argument is that storage could make those questions commercially answerable. A supplier could combine production, transport and reserved inventory into a delivery commitment that an industrial customer can evaluate. The useful product would be hydrogen available under specified conditions, with an accountable counterparty.

The Dutch commitment does not establish that such a service will be profitable. Industrylinqs reports that the supporting decision memorandum describes the €450 million as a maximum, conditional risk reserve. That qualification matters. Public support is helping allocate early risks, rather than proving that customer revenues already cover them.

Start with the factory’s requirement

The strongest British application would begin with a process that has a defensible need for hydrogen. Starting with an available cavern and then searching for something to do with its contents reverses the buying decision.

The distinction between supplying hydrogen and supplying electricity is fundamental. Parliament’s 2022 briefing on longer-duration storage describes both direct industrial use and conversion back to electricity. An industrial customer buying the molecule has a different requirement from an electricity customer buying power after that additional conversion.

For an illustrative offshore-wind-to-industry arrangement, electricity would supply an electrolyser, which produces hydrogen from water. Hydrogen would enter a transport and storage system before reaching the industrial user. The same parliamentary briefing explains the underlying chemical-storage route; this proposed arrangement is not a description of an operating HyStock supply contract.

Each handover needs an owner. My proposed procurement model would assign production forecasting to the producer, inventory and withdrawal commitments to the storage operator, delivery to the transport provider, and demand forecasts to the customer. A lead supplier would take responsibility for coordinating those commitments.

A factory should specify acceptable interruption length, required delivery rate, gas quality and fallback arrangements before comparing bids. A large advertised storage capacity cannot answer those questions by itself.

Price the delivery promise

The €450 million announcement is public support, not a storage tariff or the total cost of supplying an industrial customer. It cannot support a calculation of a British buyer’s future hydrogen bill. The government announcement gives no delivered hydrogen price.

I would ask bidders to separate their quotations into identifiable components.

• Hydrogen production, including electricity and plant operation.
• Transport, connection and any conditioning needed at handover.
• Reserved storage capacity and injection or withdrawal charges.
• Financing and ownership of cushion gas, the inventory retained to support storage operation.
• Customer equipment, maintenance, training and fallback supply.
• Delay, cancellation and exit provisions.

These are quotation requirements, not confirmed HyStock charges.

A plausible business model would combine a fee for reserving availability with charges for actual use. That is an editorial proposal, not a verified product offering. Its purpose would be to pay for readiness even when a customer withdraws little hydrogen.

This addresses a real tension identified by Energy UK. In its March 2024 consultation response, the trade association argued that frequent trading opportunities might fail to secure sufficient reserves for prolonged supply gaps. Its position supports asking how readiness gets paid for; it does not establish today’s UK policy or endorse any particular hydrogen project.

The strongest objection is that storage cannot rescue weak demand

A cavern could solve the timing problem and still fail the investment test. If customers cannot justify hydrogen at the delivered price, moving production between seasons will not create a viable market.

Conversion losses also deserve scrutiny. Parliament’s storage briefing explains why efficiency matters particularly for systems that charge and discharge frequently. For less frequent, longer-duration use, secure storage of large energy quantities at low cost becomes more important. That distinction is a reason to match technology to the task, rather than excuse losses.

My response is to restrict the proposition. Assess hydrogen storage where customers need hydrogen or where a defined resilience requirement justifies the complete conversion chain. For heat requirements, compare thermal storage and electrification. For electricity requirements, compare batteries, pumped hydro and other mechanical storage. These are among the alternatives covered in the parliamentary briefing.

Those options cannot be ranked fairly from the supplied project announcement. Nor does it establish a UK supplier shortlist, comparable quotations or a British connection offer.

Public support should therefore have measurable delivery conditions and explicit limits. The Dutch decision provides a useful starting principle by leaving construction overruns with the developer. Britain should retain that discipline while testing whether industrial demand can support the service.

British technology firms should sell evidence of delivery

The opportunity for a UK software company is more specific than building another energy dashboard. In the proposed service model, a customer would need to reconcile contracted supply, measured deliveries, available inventory and future production requirements.

I would start with a narrowly scoped forecasting or settlement product. Can it expose a projected inventory shortfall early enough for a factory to change its schedule? Can it distinguish a physical shortage from a metering discrepancy? Can both buyer and supplier reproduce the invoice from the same records?

Those are product hypotheses, not evidence of an established software market. A credible pilot would require an industrial customer and infrastructure counterparties willing to share operational data and define acceptance criteria.

For smaller British businesses, the proportionate decision would usually be to assess exposure through suppliers and energy contracts. Owning storage infrastructure is a different undertaking from needing confidence that a critical supplier can keep producing.

Editorial analysis

The Dutch announcement strengthens the case for developing storage alongside hydrogen demand. It also exposes the weakness in treating production capacity as the complete commercial proposition.

Britain should test contracts that pay for dependable industrial supply, with storage as one component and clear responsibility at every handover. The decisive question is whether a customer will pay enough for that reliability to sustain the service once exceptional public support ends.

FAQ

Does HyStock prove seasonal hydrogen storage is commercially viable?

No. The Dutch government explicitly identifies risks that investors are currently unable or unwilling to carry alone. Its support announcement establishes a commitment to developing infrastructure, not a demonstrated commercial return.

Should a British manufacturer choose hydrogen instead of electrification?

The choice should follow the industrial process and a comparison of complete delivered costs. Parliament’s briefing covers hydrogen, thermal, mechanical and battery storage, with different functions and constraints. My recommendation is to establish the required output, whether hydrogen, heat or electricity, before choosing the storage route.

What should a buyer ask a hydrogen supplier first?

Ask who guarantees delivery when production falls, and what evidence supports that commitment. Require the proposal to identify storage access, transport dependencies, delivery limits and remedies for interruption. Treat an unspecified dependency as an unresolved procurement issue.

What is the practical opportunity for UK technology companies?

A useful starting point would be software that reconciles production forecasts, storage inventory, industrial demand and contractual commitments. Prove one measurable operational benefit with a customer before expanding the scope. That is a proposed market-entry approach, not a claim that HyStock has advertised such a contract.

Sources

• Government of the Netherlands — Cabinet makes €450 million available for the first large-scale underground hydrogen storage project, 3 July 2026
• UK Parliamentary Office of Science and Technology — Longer Duration Energy Storage, 20 December 2022
• Energy UK — Response to DESNZ Long duration energy storage, dated 5 March 2024
• Industrylinqs — HyStock secures a €450 million grant for the Zuidwending hydrogen storage project, 10 July 2026