These four projects represent the first phase of a larger programme planned to deliver ten battery storage sites by 2026. Of these, nine will be hybridised with existing solar or wind plants, while one standalone system will connect directly to the grid in Vigo, Pontevedra. The combined portfolio totals 160MW/342MWh, involving an investment exceeding €80 million. Once operational, the systems are expected to provide around 125,000MWh of annual storage, meeting the electricity needs of over 38,000 homes.
Naturgy emphasised that battery energy storage systems are “key to the security and quality of supply,” allowing stored renewable energy to be dispatched during periods of low generation. This helps stabilise the grid and ensures a reliable power supply, particularly when solar or wind production is limited.
The move is part of Naturgy’s broader strategy to strengthen its renewable energy infrastructure and support the transition to a more flexible and resilient electricity system. By integrating storage with solar and wind assets, the company aims to maximise the use of renewable generation and improve grid performance across different regions.
Internationally, Naturgy’s Global Power Generation subsidiary is expanding its battery storage portfolio through projects such as the ACT Battery in Australia and the hybrid Cunderdin facility. The latter combines 128MW of solar capacity with a 55MW/220MWh battery system, demonstrating the company’s commitment to hybrid renewable-storage solutions worldwide.
By leveraging lithium-ion technology, Naturgy’s battery projects are designed to provide both operational flexibility and grid stability, addressing challenges posed by the variable nature of renewable generation. The development of these storage systems is expected to enhance energy security while supporting Spain’s renewable integration goals.
With these projects, Naturgy positions itself as a key player in advancing clean energy solutions, providing scalable storage capacity that complements its existing solar and wind generation assets. The company plans to complete the first phase of construction over the next two years, with full deployment of the ten-project programme by 2026.
