Error Correction in 49 MW Solar Park Hybridized with Wind Power in Valladolid

Key data

The San Lorenzo A photovoltaic solar module, with 49.11 MW of installed capacity, already has prior administrative authorization and construction authorization. The original resolution is from April 16, 2026. Now, through a resolution of May 7, 2026, the General Directorate of Energy Policy and Mines remedies material errors detected in that text, without altering the substantive content of the authorization.

This type of correction is common in large-scale projects and has a clear objective: to guarantee legal certainty before easements, expropriations and start of works advance.

What does this regulation establish?

The resolution of May 7, 2026 corrects material errors in the resolution of April 16, 2026, which granted Parques Eólicos San Lorenzo, SLU two key authorizations:

• Prior administrative authorization for the San Lorenzo A photovoltaic solar module.
• Administrative construction authorization for the same module.

Additionally, the original resolution includes the declaration of public utility of the project, which is the legal instrument that allows processing the easements and expropriations necessary for evacuation infrastructure in the three affected municipalities.

Hybridization consists of the new solar module of 49.11 MW sharing evacuation infrastructure with the already existing wind farm of 48.75 MW, optimizing network use and reducing the need for new connection infrastructure.

Economic and operational impact

From an operational perspective, this error correction has a direct impact on the project timeline. While material errors exist in the authorization resolution, any subsequent procedure—easements, expropriations, start of works—can be legally challenged.

By remedying the errors, the promoter can advance with greater certainty in the following steps:

• Processing of easements on private land in the three municipalities.
• Forced expropriation procedures supported by the declaration of public utility.
• Contracting of works and start of construction of the solar module.
• Management of access and grid connection permits.

Hybridization with the existing wind farm represents a relevant competitive advantage: by sharing evacuation infrastructure, the promoter reduces connection costs and leverages network capacity already authorized and built.

Who does it affect?

• Parques Eólicos San Lorenzo, SLU: direct promoter of the project, holder of both authorizations and responsible for execution.
• Municipality of Castromonte (Valladolid): affected by the evacuation infrastructure route.
• Municipality of Peñaflor de Hornija (Valladolid): affected by the evacuation infrastructure route.
• Municipality of Torrelobatón (Valladolid): affected by the evacuation infrastructure route.
• Landowners in the evacuation infrastructure route, who may be affected by easements or expropriations derived from the declaration of public utility.
• Construction companies and suppliers participating in the execution of the solar module or associated infrastructure.

Practical example

An owner of agricultural land in the municipality of Castromonte whose property is in the evacuation infrastructure route of the project may receive a notification of initiation of an easement or forced expropriation proceeding. The declaration of public utility included in the resolution of April 16, 2026—and now corrected to guarantee its legal validity—is the instrument that legally enables that procedure.

Without the error correction, any affected owner could have challenged the procedure alleging formal defects in the authorization resolution. With the correction published on May 19, 2026, the promoter has a legally sound title to advance in those procedures.

What should companies do now?

1. Parques Eólicos San Lorenzo, SLU: verify that the correction published on May 19, 2026 remedies all detected errors and that the corrected text is consistent with project plans before initiating new administrative procedures.
2. Affected landowners: review whether your property is included in the evacuation infrastructure route in Castromonte, Peñaflor de Hornija or Torrelobatón, and consult with a legal professional about your rights in the easement or expropriation procedure.
3. Town halls of the three municipalities: update their records and files with the correcting resolution of May 7, 2026 to ensure documentary consistency in associated urban planning and licensing procedures.
4. Energy sector companies with similar projects: take note of the error correction procedure as a common mechanism to reinforce the legal certainty of already granted authorizations, especially before initiating work or expropriation phases.