17.12.2025 / Members News
Hyperion Renewables, Saft and Omexom build Portugal’s first battery energy storage projects
Hyperion Renewables has taken a decisive step in supporting grid stability and advancing Portugal’s energy transition with the start of construction of its first battery energy storage projects in the country.
On 17 December in Lisbon, Hyperion Renewables announced the launch of battery storage projects in Estremoz and Évora, developed in partnership with Omexom Portugal and Saft, a subsidiary of TotalEnergies. The projects mark Hyperion’s entry into the Portuguese battery storage market and reflect the growing role of storage solutions in balancing an energy system with increasing renewable penetration.
The two projects will provide a combined 16 MW of injection power and 64 MWh of storage capacity and will be co-located with existing solar PV plants of 29 MWp and 52 MWp. By storing energy during periods of high solar production and injecting it back into the grid at times of higher demand, the systems will improve asset efficiency, reduce curtailment and contribute to a more stable and flexible power system. The stored energy will be sufficient to supply more than 5,000 households on a daily basis.
The projects represent an important milestone for the integration of renewable generation and storage in Portugal, reinforcing a model that combines solar energy with advanced storage technologies to ensure security of supply, flexibility and operational resilience. Both projects have received partial support from the European Union’s Recovery and Resilience Plan, underlining their strategic relevance at national and European levels.
Project execution will be led by Omexom Portugal, responsible for engineering, supply and Balance of Plant construction, while Saft will deliver the core battery technology, including 21 Intensium® Shift+ containers, grid-forming power conversion systems and advanced energy management solutions. Together, the partners aim to ensure high technical standards and long-term operational reliability.
Beyond their contribution to the energy system, the projects are expected to deliver tangible economic benefits to the host regions. During construction and operation, they are anticipated to create between 25 and 30 direct and indirect jobs, supporting local development and the retention of technical expertise in Portugal’s interior regions.
The Estremoz and Évora projects highlight the growing importance of battery storage as Portugal continues to expand its solar and wind capacity. As renewable generation becomes more dominant, storage solutions will play a critical role in managing variability, supporting voltage and frequency stability, and enabling a resilient, decarbonised and competitive energy system aligned with the country’s long-term climate and industrial objectives.
