A signed quote from the grid operator is not a delivery promise. That, in short, is the core message of the summary judgement handed down by the Gelderland district court on 29 April 2026 in the case between Australian data centre developer Goodman and Dutch transmission system operator TenneT. And it is a message that reaches far beyond data centres. From housing and industry to district heating and logistics property, every Dutch development project that quietly assumed a grid connection request would eventually translate into actual power on schedule now has a problem.

That assumption no longer works. We do not believe this is a temporary disturbance — it is a structural shift. Capacity planning has become a stakeholder and environmental management question. Developers who still treat it as an administrative process at the grid operator will keep running into the kind of surprise that Goodman is now experiencing in public.

What the court decided

The facts in brief. In 2021 Goodman applied for a grid connection of several tens of megawatts for a data centre in Vijfhuizen, between Haarlem and Amsterdam. TenneT issued a quote, which Goodman signed. Land was acquired, investments made. In early 2026 — when the regional grid in this focus area definitively exceeded its maximum — TenneT paused all unrealised connections, including Goodman’s. Grid reinforcement is not expected to make Goodman’s connection technically possible until somewhere between 2033 and 2035.

Goodman started summary proceedings, demanding that the connection process be resumed and asking the court to impose a penalty of €500,000 per day from 1 June onwards. The court refused. The reasoning matters more to developers than the verdict itself:

  • Only with a signed connection and transport agreement (ATO — Aansluit- en Transportovereenkomst) does an applicant gain the status of a contracted customer with an enforceable right to connection and transport. A signed quote alone does not confer that status.
  • The interest of a safe and reliable grid outweighs the interest of an individual project. If the grid operator can substantiate that connecting now would compromise grid safety, it may refuse — even where earlier commitments exist.
  • The fact that a developer has bought land, applied for permits or signed contracts with offtakers on the basis of a quote is not in itself a legal ground for forcing a connection.

With that, an implicit practice that quietly held for years — “we have a quote, so the power will come” — has been formally broken.

The counterarguments, and why they don’t hold

Three objections can be raised against our thesis that this is a structural shift. None survives scrutiny.

“The Connection Offensive will solve this.” On 4 February 2026 the Dutch cabinet presented the Aansluitoffensief with eight breakthroughs, aimed at substantially shortening the waiting list of more than 15,000 large consumers within two years. The measures — flexible contracts, congestion services, top-50 flexibility agreements — are valuable, but they shift the problem in time, not in nature. For a Vijfhuizen data centre that will not see grid reinforcement until 2033, flexibility is at best a partial answer. And the legal logic of the Goodman ruling remains intact: even with more throughput and more flexibility, a quote is still a quote and not an ATO.

“This is only about data centres.” The Dutch cabinet maintains a moratorium on new hyperscale data centres, which gives the Goodman file a political flavour that hides its general relevance. But the ruling is not about the desirability of data centres; it is about the legal status of a connection offer. The same reasoning is now being deployed in cases concerning logistics parks, greenhouse clusters, office developments, battery parks and municipal district heating projects. From 1 July 2026, small consumers in congestion areas will also fall under the ACM prioritisation framework. The Goodman ruling is not a niche decision; it is a template for how courts will look at comparable cases.

“This is a temporary crisis until the grid catches up.” Grid operators themselves tell a different story. TenneT reported in March 2026 that roughly sixty percent of its grid expansion projects suffer an average delay of two and a half years. Investment plan horizons now extend to fifteen years. Waiting for the problem to disappear is not a strategy. For projects that need to be on the grid in the next five to ten years, grid capacity is a structurally scarce good — not a passing irritation.

What this means for stakeholder and environmental management

This is where the real shift sits. Capacity planning is no longer just a commercial or technical question; it has become a stakeholder and environmental management question. Three changes at once.

The grid operator becomes a stakeholder with its own public interest. Until recently, developers could approach the grid operator as a technical supplier that builds on request. The Goodman ruling confirms that the grid operator may independently allow a societal interest to prevail over an individual project interest. That redraws the stakeholder map. The grid operator must now appear as early and as formally on the map as the municipality, the province, the water board and local residents. A commitment is no longer something you “formalise later”; it is a negotiation with a counterparty that has its own mandate.

Capacity becomes a local allocation question. Where grid space is scarce, an implicit allocation question emerges in every congestion area: which project goes first? The ACM prioritisation framework provides a formal ranking — congestion relievers, societal priority, other applicants — but the substance of that ranking is fundamentally a local conversation. Which housing project is more “socially necessary” than which other? Which industrial estate strengthens the region more than which alternative? Those questions do not belong in a grid operator’s application portal; they belong on a table where municipality, province, grid operator, developers and residents sit together. Convening that table is stakeholder and environmental management.

The legitimacy of projects shifts. A developer who secures a connection despite scarcity does so at the expense of another project or another resident further down the waiting list. That is no longer an abstract notion; it becomes visible in local media and in the council chamber. Projects that obtain power in the coming years will have to pass not just the legal but also the public test: why this project and not that one? That changes how developers tell their story, and which partners they involve.

What to do — concretely

For projects that will need a new or heavier connection in the coming years, the Goodman ruling translates into four concrete actions.

Start with a formal capacity check before acquiring land or applying for permits. Request a transport indication from the relevant regional and national grid operator for the intended location, and treat any quote as a starting point rather than a guarantee. Signing an ATO before irreversible investments are made will become the new standard.

Plan grid capacity as an integrated part of the environmental track, not as a parallel administrative request. Permitting strategy, participation process and connection process need each other: a municipality may grant a building permit, but without a transport indication the result is an empty building. Communicate that risk transparently to the alderman, the council and residents — not at the end, but at the first information round.

Explore flexibility as a design choice, not as an emergency measure. Non-firm contracts, battery storage, on-site generation, congestion services and hub formation with neighbouring projects can determine whether a connection arrives within the desired timeframe. These choices have environmental consequences — additional installations, spatial integration, noise, safety — that must be addressed early in the process.

Invest in regional coalitions. In many congestion areas, provincial or municipal coordination tables are emerging where grid operators, developers and public parties discuss prioritisation. Developers who work only through formal applications miss that table. Developers who participate stand in a fundamentally stronger position when allocation decisions are made.

A connection contract is an environmental file

To some developers the Goodman ruling feels like injustice: investments made, quote signed, and still no power. We understand the disappointment, but we share the legal substance. The grid operator is not a supplier producing capacity on demand; it is the steward of a shared public good that has become scarce. A grid connection must therefore carry the same diligence and the same societal weighing as an environmental permit, a Natura 2000 assessment or a participation process.

If we take that analysis seriously, an assignment follows for the whole field: for developers, to elevate capacity planning; for grid operators, to be transparent and accountable in their weighing; for municipalities and provinces, to organise coordination tables where prioritisation happens in the open; and for stakeholder and environmental management, to take that role on.

The era in which a connection was a tick-box is over. It has become a file — and the projects that recognise that first will be the ones with power in the years ahead.

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