Energy

Spain Delays Almaraz Nuclear Shutdown by Three Years

Spain pushed Almaraz nuclear plant's shutdown from 2027-2028 to June 2030 over energy-market volatility - a live test of how fixed EU phase-out dates really are.

EnergyBy Servola Tech Desk2026-08-194 min read

AI-assisted, edited by humans. | Editor-in-Chief: Leon Soliman | Editorial standards

Spain Delays Almaraz Nuclear Shutdown by Three Years

Key takeaways

Spain just extended the Almaraz nuclear plant's operating license from a 2027-2028 shutdown to June 2030, proof that even a long-fixed national phase-out date can move three years under energy-security pressure.
Both Almaraz units needed a new order, TED/864/2026, published in Spain's official gazette on August 14, 2026, following a favorable safety report from Spain's Nuclear Safety Council (CSN) on July 16, 2026, and the extension is now binding government policy.
The Spanish government explicitly blamed energy-market volatility from the wars in the Middle East and Ukraine, and said the delay avoids exposing consumers to fossil-fuel price spikes, while insisting the country's full nuclear phase-out by 2035 is unchanged.
Almaraz supplies about 7 percent of Spain's electricity, the equivalent of roughly 4 million homes, and supports about 4,000 jobs in Extremadura; grid operator Red Electrica said the extension improves system reliability but does not remove the need to keep building other firm capacity.
Spain is not the first EU government to move a nuclear closure date under pressure - Belgium extended two reactors by a decade in 2022 - so operators planning long-lived capital projects around any government's energy-transition timeline should build in room for that date to move.

A License That Was Supposed to Stay Fixed

On August 14, 2026, Spain's government published Order TED/864/2026 in the country's official gazette, formally extending the operating licenses of both Almaraz reactor units to June 8, 2030. Unit 1, previously due to close in October 2027, gets just under three more years of operation; Unit 2, originally set to shut in October 2028, gets about a year and eight months more. Both dates had been fixed points in Spanish energy policy since the original 2019 nuclear phase-out agreement.

The extension followed a formal regulatory process. Plant operator Centrales Nucleares Almaraz-Trillo applied for the license change on October 30, 2025, and Spain's Nuclear Safety Council (CSN), the independent regulator, issued a favorable report on July 16, 2026, confirming both units meet the conditions to operate safely through 2030. The government's order ratified a regulatory finding that had already been delivered.

The Government's Two Messages at Once

The government's justification centers on energy security. The published order cites uncertainty in international energy markets driven by the conflicts in the Middle East and in Ukraine, along with volatile fossil-fuel prices, as reasons to keep two large, already-built reactors running rather than replace their output with something else on short notice. Ministry officials framed the extension as a way to moderate Spanish consumers' exposure to price spikes that were not foreseeable when the original 2027 and 2028 closure dates were set.

At the same time, the ministry was careful to say the extension does not alter the closing date of the entire nuclear fleet in 2035. Under Spain's 2019 roadmap, Asco I and Cofrentes are still scheduled to close in 2030, Asco II in 2032, and Vandellos II and Trillo in 2035 - only the two Almaraz units moved. The message to the public is that this is a targeted adjustment inside a long-term plan that otherwise stands, even though the adjustment covers the single largest nuclear asset in the country.

What the Extra Three Years Actually Buys

Almaraz is not a marginal plant. It supplies about 7 percent of Spain's annual electricity, output equivalent to roughly 4 million homes, and its two units account for a meaningful share of the 20 percent of national electricity that Spain's seven operating reactors together provide. In Extremadura, the region where Almaraz sits, the plant directly and indirectly supports about 4,000 jobs.

Industry reaction was warm. Marta Ugalde, president of Spain's nuclear trade group Foro Nuclear, called it great news that a strategic infrastructure like Almaraz can keep operating and urged the government to use the extension to review the regulatory, economic and tax conditions facing nuclear power. Sama Bilbao y Leon, Director General of the World Nuclear Association, called it great news for Spain's economy, energy security and grid stability. Grid operator Red Electrica was more measured: it said the extension improves system reliability but in no case removes the need to keep building other firm generation capacity and storage.

The Assumption Every Operator Should Retest

Spain is Europe's fifth-largest economy and had spent seven years treating its 2027 and 2028 Almaraz closure dates as settled policy. It just moved them by roughly three years under supply-security pressure, while telling the public that its broader 2035 phase-out commitment has not changed. Spain is also not the first government to make this kind of move: Belgium reversed its own nuclear phase-out in 2022, extending two reactors originally due to close by a decade. Germany shut its last three reactors in April 2023 despite facing comparable energy-price volatility, showing that governments can respond to the same kind of pressure in different ways.

For a business owner modeling long-run industrial electricity costs, grid reliability, or a capital project such as a data center or a factory against a country's stated energy-transition timeline, the practical takeaway is to build schedule slack into any plan that assumes a phase-out or a build-out date will hold. Treat a published energy-policy timeline as the government's current best estimate, revisable when circumstances change. Spain just showed that even a large, established grid can move a supposedly fixed date by three years in a single order.

Frequently asked questions

What exactly changed for the Almaraz nuclear plant?

Spain's government published Order TED/864/2026 on August 14, 2026, extending the operating licenses of both Almaraz reactor units to June 8, 2030. Unit 1 was previously due to close in October 2027 and Unit 2 in October 2028; both now have additional operating time, just under three years for Unit 1 and about a year and eight months for Unit 2.

Has Spain abandoned its 2035 full nuclear phase-out?

No, according to the government. The ministry says the Almaraz extension does not change the 2035 target date for closing Spain's entire nuclear fleet, and the other five reactors, Asco I and Cofrentes in 2030, Asco II in 2032, and Vandellos II and Trillo in 2035, keep their original closure dates under the 2019 roadmap.

What should a business planning around another country's energy-transition timeline take from this?

Treat a government's published phase-out or build-out date as a current best estimate, revisable when circumstances change. Spain held its Almaraz closure dates as fixed policy for seven years and then moved them by roughly three years under supply-security pressure, and Belgium did something similar in 2022. Long-lived capital projects planned around a stated energy timeline should carry schedule slack for that possibility.

The Almaraz extension was won on a safety report and an emergency rationale, and it will read, in hindsight, as the moment a supposedly fixed transition date turned out to be a policy position that could be revised under pressure. Any operator holding a fifteen-year plan against another government's stated phase-out or build-out year should treat that year as current best judgment, not as ground truth.

SpainAlmarazNuclear EnergyEU Energy PolicyEnergy Security

Spain Wrote the Rule That Skips the Grid Queue

Ember found 25 GW of wind and solar can share existing EU hydropower connections. Spain and Portugal already let hybrid projects skip the queue.

4 min read

Energy

Iberia Announced 10 Gigawatts and Can Wire Four

Iberia has announced 10.5 GW of data-centre power but only 4.5 GW is real, says CBRE. The bottleneck is grid connection, not renewables. What buyers should diligence.

3 min read

Decisions

The Third Pivot Was the Warning Magic Leap Missed

Magic Leap filed a WARN notice for 193 layoffs effective 1 October 2026, its fourth strategic pivot after $4 billion raised. The lesson is the pattern, not the pivot.