Présentation :

Portugal is making significant strides in its renewable energy shift. Solar capacity is growing quickly across the country. However, as clean energy production rises, managing the electricity grid becomes more challenging.

During times of high solar generation, especially during the day, the network can become overloaded. This situation makes it harder to balance supply and demand and fully use the renewable energy generated.

To help tackle this challenge, Hyperion entrusted Omexom Portugal to deliver a 10 MW / 40 MWh Battery Energy Storage System (BESS) at the Cavaleira energy hub in Estremoz, east of Lisbon. This project complements a 51.8 MW solar power plant that Omexom is already developing. It is part of a larger strategy to integrate renewable energy more effectively into the national grid.

  • Winning this project was due to the customer’s satisfaction with our adherence to deadlines and the performance our teams showed. 

    Luís Silva Business Unit General Manager at Omexom in Portugal
  • Frank Westphal

    EM-Power Europe is an important platform for us. Here, we show how Omexom is making a tangible contribution to the energy transition. The fact that we are organising our presence at the event together with our international colleagues also highlights the strength of our global network.

    Frank Westphal CEO of Omexom in Germany

  • This renewed trust confirms our offshore competence and the performance of our teams in Germany and the Benelux countries. Together, we ensure the reliable operation of the substations, contributing to the safe integration of offshore wind energy into the energy system.

    Irina Lucke Managing Director and Head of the Offshore Business Area, Omexom in Germany

  • With Omexom, we are continuing our collaboration with a partner who has demonstrated comprehensive offshore expertise, high reliability, and a deep understanding of our facilities. This helps us to operate our offshore substations safely and efficiently and to further strengthen offshore wind power generation.

    Renzo Schildmeijer Operations Manager BOP at Eneco

  • We had to confirm with the funicular technicians that the installation would not cause any operational problems, the client was very interested in this installation, which was not included in the initial plan.

    Celestino Gómez Paez Project Manager at Omexom in Spain

Delivering a Smart Storage Solution

The battery storage system will store extra electricity when renewable production is high and release it when demand rises. Omexom’s teams are responsible for the engineering, civil works, equipment installation, cabling, grid connection and advanced control systems required to bring the project to life, supported by the expertise of Omexom Conversion & Storage in France.

“Their expertise helps us to nail down the technical and contractual aspects, which are so crucial for a first BESS project,” says Luís Silva.

Once commissioned, the BESS will play a key role in improving grid flexibility and reliability. By storing renewable electricity and releasing it when needed, the system will help reduce energy losses, smooth fluctuations in power generation and maximize the value of clean energy production.

The project also highlights the potential of hybrid renewable developments. Alongside the solar installation, Hyperion is developing a wind farm at the same location. Together, solar and wind generation, supported by battery storage, will optimize the use of the site’s grid connection, delivering renewable power more efficiently throughout the day and night.

“The Client´s aim is to maximise the authorised injection point by combining solar energy by day with wind power at night, with the BESS as a balancing mechanism,” explains Luís Silva.

As countries continue to accelerate the deployment of renewable energy, battery storage is becoming an essential part of the energy landscape. Projects like Cavaleira demonstrate how storage solutions can unlock greater renewable integration while supporting grid stability and energy security.

Read the full article on The Agility Effect for insights from Omexom experts on the technical challenges, the benefits of renewable hybridization, and the growing importance of battery storage in building a more flexible and reliable energy system

 

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