Deals Counterparts

Repsol to expand Aguayo hydroelectric plant in Cantabria with over €720M investment

Development Hydro announced Spain Mar 10, 2026
USD720M
Deal Value
1014 MW
Capacity
construction
Stage
Aguayo II
Project

Repsol is undertaking a development project to expand its Aguayo hydroelectric plant in Cantabria, doubling its capacity to 1,014 MW for turbination and 1,181 MW for pumping, with an investment exceeding €720 million. The European Commission has allocated €180 million towards this strategic infrastructure project, which received administrative approval from the Ministry for Ecological Transition in February. This expansion is expected to generate enough energy to supply over 800,000 homes in Spain, highlighting its national importance for energy storage.

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Deal Analysis

Repsol, an integrated energy company expanding its renewable footprint, is investing over €720 million to double the capacity of its Aguayo hydroelectric plant in Cantabria. This development will boost turbination capacity to 1,014 MW and pumping to 1,181 MW, a significant move for Spain's energy storage. The project, which received administrative approval from the Ministry for Ecological Transition in February, also secured a substantial €180 million allocation from the European Commission. Once complete, it's projected to generate enough power for over 800,000 Spanish homes, underscoring its role in national energy independence.
  • Repsol's €720M+ investment in Aguayo expansion.
  • European Commission allocates €180M towards the project.
  • Plant capacity to double to 1,014 MW (turbination) and 1,181 MW (pumping).
  • Projected to power over 800,000 Spanish homes.

Source Intelligence

KEY DETAILS

The project involves an expansion to double its capacity. The administrative approval for the project was granted in February 2026 by the Ministry for Ecological Transition, conditioned on modifications from the environmental impact statement. A new administrative step involves public information for a modification request to the prior administrative authorization, for construction authorization, and for the declaration of public utility. The resolution of this public information process is expected in two or three months. The plant will have a pumping capacity of 1,181 megawatts and is considered a strategic national infrastructure for its storage capacity, expected to generate energy to supply over 800,000 homes in Spain. Quotes: "ampliación, al doble de su capacidad", "La autorización administrativa previa fue concedida el pasado febrero a Repsol por el Ministerio para la Transición Ecológica", "condicionada a una serie de modificaciones derivadas de la declaración de impacto ambiental", "solicitud de modificación de la autorización administrativa previa -ya concedida al proyecto-, para la autorización de construcción y para la declaración de utilidad pública de la actuación", "la resolución de esta información pública podría estar en dos o tres meses", "potencia de bombeo de 1.181 megavatios", "una infraestructura estratégica a nivel nacional por su capacidad de almacenamiento", "generará energía para abastecer a más de 800.000 hogares en España"

Deal Size
un proyecto de Repsol que supondrá una inversión de más de 720 millones de euros
Capacity
ampliar la potencia del turbinación de la actual central a 1.014 megavatios y un potencia de bombeo de 1.181 megavatios
Location
central hidroeléctrica de Aguayo, en Cantabria, un proyecto de Repsol
Announcement
Martes, 10 de marzo de 2026
PARTIES MENTIONED IN SOURCE
R
Repsol developer

"un proyecto de Repsol que supondrá una inversión de más de 720 millones de euros"

C
Comisión Europa lender

"para el que la Comisión Europa ha consignado 180"

high quality Enriched Mar 10, 2026

Timeline

Announced
Mar 10, 2026
Signed
Closed

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