The Ministry opens the 42 MW storage project in Jerez for allegations

The Ministry for the Ecological Transition and the Demographic Challenge has opened for public consultation the request for prior administrative and construction authorization for the BESS Prisca battery storage module, with an installed capacity of 42 MW, which will be hybridized with the existing 49.45 MW solar photovoltaic park in Jerez de la Frontera. The process is being carried out by the Industry and Energy Area of the Government Delegation in Andalusia through an announcement signed in Seville on November 4, 2026, and published in the B.O.P. of Cádiz no. 216, dated November 10, 2026, under order number 391.466 and file PFot-ALM-235.

Who is promoting the project and what is being authorized

The company Prisca Solar, S.L. submitted the request on May 20, 2026, to the registry of the Ministry for the Ecological Transition and the Demographic Challenge. It requests three things simultaneously:

• Prior administrative authorization.
• Administrative construction authorization.
• Exemption from the environmental impact assessment.

The competent body to resolve the request is the General Directorate of Energy Policy and Mines, while the processing corresponds to the Industry and Energy Area of the Government Delegation in Andalusia, in accordance with Article 113 of Royal Decree 1955/2000, of December 1.

A solar hybrid with 32 battery containers

The module is located in the municipality of Jerez de la Frontera, with cadastral reference 53020A12200001 (Polygon 122, Plot 1). Its characteristics, according to the announcement, are:

• Installed capacity of 42.0 MW and useful capacity of 161.02 MWh.
• 32 battery containers with LFP (lithium iron phosphate) technology cells.
• Bidirectional PCS inverters for the conversion of direct current to alternating current and vice versa.
• 30 kV underground power line to a new BESS+PV sectioning center.
• Entry and exit of the existing photovoltaic plant line at that new center.

The Prisca solar plant, with 49.45 MW, is definitively registered in the Administrative Registry of Electric Power Production Facilities under the key RE-114534. Red Eléctrica de España, S.A.U. updated on July 1, 2026, the access and connection permit of the hybrid installation to the transmission grid at the Arcos de la Frontera 400 kV substation, which is already in service and falls outside the scope of this file.

Fifteen-day deadline and how to file objections

The announcement invokes Royal Decree 997/2025, of November 5, on urgent measures for the reinforcement of the electrical system, whose second final provision exempts the incorporation of storage in hybridizations within the already evaluated polygonal area from a simplified environmental impact assessment. As it is processed under Article 6 of said regulation, the file must be submitted for public consultation with notification to the affected administrations and bodies, according to Title VII of Royal Decree 1955/2000.

Interested parties have a period of fifteen days starting from the day following the publication of the announcement in the Official State Gazette (Boletín Oficial del Estado). Allegations may be submitted through two channels:

• The Electronic Registry of the General State Administration, with organ code EA0040241, via the electronic office.
• The documentation displayed on the website of the Ministry of Territorial Policy and Democratic Memory, in the section for authorization procedures for electrical installations.

In both cases, the phrase “Allegations to the processing procedure of PFot-ALM-235” must be expressly cited. The document is signed by the Director of the Industry and Energy Area, José Manuel Almendros Ulibarrri.

Why it matters

The file directly affects landowners and residents of polygon 122 of Jerez, who may submit allegations regarding impacts, easements, and the layout of the 30 kV line. Furthermore, silence does not favor the interested parties: the announcement warns that, once the deadline has passed without a response, their agreement with the procedure will be understood and it will proceed until the resolution of the file. The project is part of the hybridization cycle of already authorized photovoltaic plants with storage, the route that Royal Decree 997/2025 aims to accelerate to reinforce the electrical system.

Source: B.O.P. of Cádiz, no. 216, November 10, 2026, page 2 (official reference: announcement no. 391.466, file PFot-ALM-235).