Public information for the expansion of the Santa Engracia 400 kV substation

The Government Delegation in La Rioja has opened for public consultation the request for prior administrative authorization and administrative construction authorization for the expansion project of the Santa Engracia 400 kV substation, in the municipality of Santa Engracia de Jubera. The announcement is published in the Official Gazette of La Rioja number 190, dated October 2, 2026, with official reference BOR-A-20261002-V–480 and file number 202609160124533. The action, promoted by Red Eléctrica de España, S.A.U., involves the installation of a circuit breaker bay and a 150 MVAr reactor.

The procedure is opened for the purposes of articles 53.1.a) and 53.1.b) of Law 24/2013, of December 26, on the Electricity Sector, and in accordance with article 125 of Royal Decree 1955/2000, of December 1, which regulates the activities of transmission, distribution, marketing, supply, and the authorization procedures for electrical energy installations.

The declared purpose of the installation is to reinforce the security of supply and the control and operation capacities of the electrical energy transmission network. The action is included in the Resolution of August 3, 2026, of the Secretary of State for Energy, which publishes the Agreement of the Council of Ministers of July 28, 2026, approving the Third Modification of Specific Aspects of the Electrical Energy Transmission Network Development Plan 2021-2026, published in the BOE number 193, of August 8, 2026.

Technical characteristics and budget

The project is executed on the 400 kV switchyard of the current Santa Engracia electrical energy transmission substation, with the following general characteristics:

• Nominal voltage: 400 kV.
• Highest voltage for equipment (Um): 420 kV.
• Technology: AIS.
• Installation: conventional outdoor.
• Configuration: breaker-and-a-half.
• Short-time short-circuit current: 50 kA.

The projected reactor has a voltage of 400 kV, a power of 150 MVAr, star connection grounded, and a three-phase configuration. The total budget for the action amounts to 3,671,788 euros.

Competent bodies and processing

The substantive body competent to resolve the request is the General Directorate of Energy Policy and Mines of the Ministry for the Ecological Transition and the Demographic Challenge. The processing body is the Functional Area of Industry and Energy of the Government Delegation in La Rioja, located in Logroño, C/ Gran Vía nº 49, mezzanine right, where allegations must be addressed.

The project may be examined at that Functional Area by prior appointment or via the link https://run.gob.es/uauProyectosRioja. The announcement was signed in Logroño on September 16, 2026, by Daniel Lorenzo Puente, Director of the Industry and Energy Area of the Government Delegation in La Rioja.

Deadline and method for submitting allegations

Interested parties have a period of thirty business days, counting from the day following the publication of the announcement, to formulate any allegations they deem appropriate. The enabled channels are:

• Physical written support, at the General Registry of the corresponding Government Delegation or Sub-delegation.
• Electronic form, through the Electronic Registry of the General State Administration (https://rec.redsara.es).
• Any of the forms provided for in Article 16 of Law 39/2015, of October 1, on the Common Administrative Procedure of Public Administrations.

It is noted that legal entities, entities without legal personality, and the subjects identified in Article 14 of Law 39/2015 are required to interact by electronic means; therefore, their allegations in this process must be submitted mandatorily via that channel.

The promoter is Red Eléctrica de España, S.A.U., with NIF A85309219 and address at Paseo del Conde de los Gaitanes number 177, 28109 Alcobendas (Madrid).

The expansion of Santa Engracia is part of the reinforcement of the electricity transmission network in La Rioja and opens a period in which owners and those affected by the surroundings of the installation may make allegations regarding the project, its technical characteristics, and its layout before the General Directorate of Energy Policy and Mines resolves the authorization.

Source: Official Gazette of La Rioja, no. 190, of October 2, 2026, section V. Announcements, pages 16747-16748 (official reference: BOR-A-20261002-V–480).