Ore Energy’s agreement with Dutch energy company Budget Thuis adds a substantial planned deployment to Europe’s long-duration storage market. For data center developers, the announcement raises a useful question: how could storage lasting many hours support a campus whose power requirements extend well beyond short outage protection?
The answer requires separating the announced energy capacity from deliverable power, project readiness and the facility’s operating requirements. A 1 GWh agreement is not a 1 GW power supply, and a multi-day battery is not automatically a replacement for a UPS or a permitted, dependable source of continuous power.
This article examines the public announcement and the evidence a buyer should request before incorporating iron-air storage into a project budget or operating plan.
Key Takeaways
- Ore Energy announced a 1 GWh deployment agreement with Budget Thuis in the Netherlands, with an initial committed 400 MWh phase planned for 2028.
- Those are announced future deployments, not evidence that the full capacity is already operating.
- MWh describes energy; MW describes power. The agreement’s energy figure alone does not establish its discharge rating.
- Pilot operation and research funding are useful development milestones, but do not establish project-specific guarantees, delivered prices or a commercial operating history.
- Evaluate charging access, usable energy, controls, warranties and integration alongside the battery itself.
What Ore Energy and Budget Thuis announced#
In its deployment announcement, Ore Energy described a 1 GWh agreement with Budget Thuis and an initial committed 400 MWh phase scheduled for 2028. The company presents its containerized iron-air technology as suitable for storage durations of 24–100 hours.
Those statements establish the announced scope and intended timing. They should not be expanded into a claim that all 1 GWh is installed, that every milestone is unconditional, or that the same delivery schedule is available to another customer.
The announcement is also not a published, fully scoped equipment quotation. It does not provide enough information to calculate a reliable installed price per kWh or per kW for a data center application. A buyer would need the offered configuration, usable energy, discharge power, installation scope and commercial terms.
| Public information | What it helps establish | What still needs project evidence |
|---|---|---|
| Agreement expressed in GWh | Scale of the announced energy deployment | Power rating, allocation across sites and commissioning sequence |
| Initial phase planned for 2028 | Announced target for an early deployment | Contractual milestones and current delivery commitments |
| Stated storage-duration range | Intended application category | Performance at a specified duty, temperature and connection point |
| Containerized design | Proposed packaging approach | Complete layout, civil works, electrical interfaces and site approvals |
For equipment procurement, keep the project announcement and the supplier’s actual offer as separate records. Update the offer when the required delivery date or operating duty changes.
Translate MWh into a defined operating requirement#
A gigawatt-hour equals 1,000 megawatt-hours. Energy and power are related through time:
Average power in MW = delivered energy in MWh ÷ discharge duration in hours.
The following examples illustrate the arithmetic only. They are not published power ratings for the Ore Energy projects.
| Assumed delivered energy | Assumed discharge duration | Calculated average power |
|---|---|---|
| 1,000 MWh | 100 hours | 10 MW |
| 1,000 MWh | 24 hours | Approximately 41.7 MW |
| 400 MWh | 100 hours | 4 MW |
| 400 MWh | 24 hours | Approximately 16.7 MW |
These calculations assume the stated energy is actually deliverable at the relevant boundary over the stated interval. A project must distinguish nominal storage capacity from usable AC energy, account for auxiliary consumption and reserve requirements, and confirm the equipment’s actual power limit. Changing the arithmetic does not change the inverter or battery configuration.
A data center’s full electrical demand also differs from its IT load. Cooling, electrical losses and other facility systems need to be included in the relevant boundary. If only a selected portion of the campus is supported, define that portion explicitly.
SecondWatt’s guide to battery storage MW and MWh explains how to keep energy, power and duration separate when comparing systems.
What the pilot evidence establishes#
Ore Energy has reported a first grid-connected iron-air installation in Delft. It subsequently announced, on February 10, 2026, that it had completed a 100-hour pilot at EDF Lab les Renardières in France. According to the company, the latter operated under grid conditions for several months and collected charge, discharge and integration data.
These are company-reported development milestones. The public summary does not supply a complete independent acceptance-test report, a fleet reliability record or a warranty for a different installation. Buyers should request the underlying performance information that is relevant to their intended duty.
The European Commission’s StoRIES project record describes the research infrastructure program associated with the EDF pilot. Its separate F-AIR BAT record identifies Ore Energy as coordinator of an EU-supported development project. These records establish research context and funding support; they do not independently certify every performance or safety claim made by a supplier.
For due diligence, ask which results were measured, who witnessed them, what the test boundary included and whether the configuration matches the proposed commercial equipment.
Define the role before comparing technologies#
Long-duration storage can be evaluated for several different tasks: shifting energy between periods, supporting a restricted grid connection, covering a defined extended shortfall or participating in grid services. Each task has a different operating profile and revenue or reliability objective.
A UPS selection begins with the protected load’s continuity and power-quality requirements. An extended-duration storage proposal must separately demonstrate how it connects to that architecture. Do not infer transfer performance, black-start capability or islanded operation from storage duration alone.
Similarly, a battery does not create the energy needed to recharge it. A project relying on storage through a sustained shortfall must identify when and how replenishment occurs, including the possibility of another shortfall before a full recharge.
Compare UPS systems, generators and longer-duration storage against their assigned roles. A combined architecture may be appropriate, but its value depends on the actual design and dispatch strategy.
Charging access can determine whether the project works#
A storage project needs a charging plan as well as a discharge plan. Establish the available import capacity, permitted charging periods, energy source, controls and effect on the facility’s other loads.
If the utility connection is constrained, charging may compete with the campus’s operating demand. If the project expects to charge from on-site renewable generation, test the dispatch plan against the expected timing and variability of that generation. Do not assume that all nominal storage capacity will be available whenever an event begins.
Round-trip efficiency belongs in this analysis. It affects the charging energy needed to restore a given amount of delivered energy, but this article does not assign an unverified efficiency value to Ore Energy’s equipment. Require the supplier’s guaranteed value, measurement boundary and test conditions.
In the Netherlands, the ACM’s June 2026 announcement on flexible contracts and congestion management describes arrangements intended to improve the use of network capacity. That policy context is relevant to project planning. It does not establish that a particular battery project has secured a connection or that adding storage automatically removes a data center’s grid constraints.
Build a complete equipment and integration request#
A useful RFQ should describe the intended duty before asking for a price. Specify the required discharge power, usable energy, duration, expected cycles, operating reserve and availability requirements. Include the receiving site and connection arrangement.
Ask suppliers to distinguish the following:
- Battery equipment, power-conversion equipment and the control system.
- Usable AC energy at the agreed delivery point and its warranted evolution.
- Charge and discharge limits under the proposed operating conditions.
- Auxiliary demand, environmental limits and maintenance requirements.
- Safety documentation, protection requirements and applicable approvals.
- Freight, civil works, installation, testing and commissioning.
- Warranty obligations, exclusions, remedies and service arrangements.
- Expansion assumptions and compatibility with later phases.
The surrounding transformers and switchgear also need a defined scope. Confirm who supplies and tests each interface, including metering, protection and communications.
For pricing, show equipment acquisition cost and installed project cost separately. State whether the denominator is nominal kWh, usable AC kWh or rated kW. Without that information, a low headline price can describe a materially different system.
Establish commercial readiness through evidence#
A project team should maintain an evidence schedule rather than relying on a single technology-readiness label. Request the proposed factory capacity, supply commitments, acceptance procedure, service capability and contractual response to underperformance.
Match the evidence to the decision. Early feasibility work may use clearly identified assumptions. An investment decision needs a firmer design and risk allocation. A purchase order needs a defined configuration, performance obligations and delivery terms.
Do not turn the announced 2028 phase into a blanket instruction to postpone every storage project until that year. Other technologies, applications and supplier offers have different timelines. Equally, do not treat the announcement as proof that iron-air equipment is immediately available for any site.
Frequently Asked Questions#
Is Ore Energy’s 1 GWh agreement already operating?#
The cited announcement describes future deployment, including an initial 400 MWh phase planned for 2028. It does not establish that the full agreement is operating.
How many MW can 1 GWh supply?#
That depends on the configured discharge rating and duration. Dividing 1,000 MWh by 100 hours gives 10 MW as an arithmetic example, not a confirmed project specification.
Can iron-air storage replace a data center UPS?#
Storage duration alone does not establish suitability for UPS duties. The design must demonstrate the required continuity, response, power quality and integration with the protected load.
Is there a verified public price for this agreement?#
The cited deployment announcement does not provide a sufficiently scoped price for calculating a defensible project cost per kWh or per kW. Obtain a quotation with clear inclusions and performance boundaries.
What should a buyer do next?#
Define the operating requirement and request evidence for the offered system. For the associated electrical equipment, submit a sourcing request with the voltage, ratings, configuration, location and required delivery date. Availability and terms must be confirmed for each proposed unit.