Key data
| Regulation | Resolution of October 2, 2026, from the General Directorate of Energy Policy and Mines |
|---|---|
| BOE Publication | October 22, 2026 |
| Effective date | October 22, 2026 |
| Developer | Planta FV 130, SLU |
| Canceled project | Valentina wind farm (90 MW) + Valentina Solar plant (60.382 MW) |
| Total abandoned capacity | 150.382 MW |
| Affected municipalities | Rosinos de la Requejada, Espadañedo and Asturianos (Zamora) |
| Lost grid permission | Access and connection to Arbillera 220 kV substation (Red Eléctrica, 2024) |
| Category | Energy / Renewables |
| Year | 2026 |
A considerable renewable investment in Zamora province comes to an end without generating a single kilowatt. The General Directorate of Energy Policy and Mines accepts, through a resolution published on October 22, 2026, the withdrawal by Planta FV 130, SLU of the prior administrative authorization request for the entire Valentina project.
The developer does not withdraw the application due to its own strategic decision: it does so because environmental reports make it unviable to continue. The report from the Junta de Castilla y León in May 2026 declared the project environmentally unviable, closing the only remaining path to support the common evacuation infrastructure.
What does this resolution establish?
The resolution formally accepts the withdrawal submitted by Planta FV 130, SLU, of the request for prior administrative authorization for:
- The Valentina wind farm, of 90 MW, located in Rosinos de la Requejada, Espadañedo and Asturianos (Zamora).
- Its hybridization with the Valentina Solar photovoltaic installation, of 60.382 MW.
- A part of the common evacuation infrastructure for both installations.
The withdrawal automatically entails the loss of access and connection permission to the Arbillera 220 kV substation, granted by Red Eléctrica in 2024. Without that connection point, neither of the two installations can feed energy into the grid.
A relevant fact about the project's history: the solar plant capacity had already been reduced previously from 124.88 MW to 60.382 MW due to environmental constraints prior to this withdrawal. That is, the project had already suffered a reduction of more than 64 MW before the final cancellation. Hybridization was, according to the developer itself, the only way to guarantee the technical and economic viability of the common evacuation infrastructure. When the wind component falls due to environmental unviability, the solar component also loses its support.
Economic and operational impact
The cancellation has economic and operational consequences at several levels:
- Loss of accumulated investment: Planta FV 130, SLU, loses all costs incurred in studies, processing, engineering and case management from its inception through October 2026.
- Loss of 2024 grid permission: Access to the Arbillera 220 kV substation, obtained from Red Eléctrica in 2024, becomes void. Obtaining a new connection point in that area would require restarting a process that could take years.
- Reduction of renewable capacity in Zamora: The province loses 150.382 MW of planned renewable capacity, with corresponding impact on local employment, economic activity and compliance with territorial decarbonization objectives.
- Risk signal for the sector: The cancellation reinforces the perception that hybrid projects in areas with high environmental sensitivity face elevated regulatory risk, especially when economic viability depends on both technologies being approved jointly.
Who does it affect?
- Planta FV 130, SLU: Direct developer. Loses the entire project and associated investment.
- Developers of hybrid wind-solar projects in Spain: Reference case on the risk of structuring a project's economic viability on the joint approval of two technologies.
- Investors and funds with renewable exposure in Castilla y León: Alert signal about the density of environmental constraints in the region.
- Municipalities of Rosinos de la Requejada, Espadañedo and Asturianos (Zamora): Lose the economic activity, employment and tax returns associated with the construction and operation of the project.
- Legal and technical advisors in the energy sector: Must incorporate this precedent in the risk analysis of similar projects under processing.
Practical example
The Valentina case illustrates a structural risk in hybrid projects: when the economic viability of evacuation infrastructure depends on both technologies being approved jointly, the fall of one drags down the other.
In this specific case: the Valentina Solar plant had already been reduced from 124.88 MW to 60.382 MW due to previous environmental constraints. Nevertheless, the developer continued because hybridization with wind (90 MW) allowed sustaining the cost of the shared evacuation infrastructure. When the Junta de Castilla y León issues in May 2026 a report declaring the whole project environmentally unviable, the developer has no margin: without wind, solar is also not profitable on its own, and the grid permission for the Arbillera 220 kV substation—obtained in 2024—becomes unusable. The result is the total abandonment of a project that had passed several years of processing.
For a developer evaluating a similar project today, this case advises structuring the economic viability of each technology independently, without one's profitability depending on the approval of the other.
What should companies do now?
- Review the dependency structure of hybrid projects in portfolio: If the profitability of evacuation infrastructure depends on the joint approval of wind and solar, evaluate scenarios where one of the two technologies is not authorized.
- Audit the environmental status of projects under processing in Castilla y León: The Junta's May 2026 report on Valentina is a signal that the region applies demanding environmental criteria. Similar projects in the same geographic area should review their exposure.
- Verify the validity of access and connection permits: Grid permissions have deadlines and conditions. Cancellation of the associated project may imply their automatic loss, as occurs in this case with access to Arbillera 220 kV.
- Document incurred costs for tax and accounting treatment: Processing expenses for a canceled project must be correctly classified and, where appropriate, impaired in financial statements.
- Incorporate this precedent in regulatory risk analysis: Advisors and developers must include the risk of supervening environmental unviability as a critical variable in the valuation of renewable projects in sensitive areas.
Frequently asked questions
Why has the Valentina project in Zamora been canceled?
The developer, Planta FV 130, SLU, withdrew the authorization request because the Junta de Castilla y León issued in May 2026 a report declaring the project environmentally unviable. Without that environmental authorization, hybridization between the wind farm (90 MW) and solar plant (60.382 MW) was not possible, and the developer considered that without hybridization the common evacuation infrastructure was also not viable.
What total capacity is lost with the cancellation of the Valentina project?
A total of 150.382 MW of renewable capacity is abandoned: 90 MW from the Valentina wind farm and 60.382 MW from the Valentina Solar photovoltaic plant. It should be noted that solar capacity had already been reduced previously from 124.88 MW to 60.382 MW due to previous environmental constraints.
What happens to the electrical grid access permission that the project had?
The access and connection permission to the Arbillera 220 kV substation, granted by Red Eléctrica in 2024, becomes void as a direct consequence of the withdrawal. Project cancellation implies the definitive loss of that connection point to the transmission network.
What risk does this case pose for other hybrid project developers?
The Valentina case shows that structuring the economic viability of evacuation infrastructure on the joint approval of two technologies (wind and solar) creates a domino effect risk: if one falls due to environmental unviability, it drags the other down. Developers with similar hybrid projects under processing must evaluate whether each technology is viable independently.
Where can I consult the official resolution canceling the Valentina project?
The resolution was published in the BOE on October 22, 2026 (reference BOE-A-2026-22071). It includes the withdrawal accepted by the General Directorate of Energy Policy and Mines and all elements of the canceled case.
Official source
Consult complete regulation in official source
Notice: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-22071
