The renewable energy sector is currently booming, but it faces the major challenge of intermittency. To ensure the system doesn't falter when the sun sets, it's essential to have infrastructure that stores the energy generated during the day. The Spanish company Acciona EnergĂa seems to understand this very well and has decided to take its international strategy to the next level with a significant investment in the southern hemisphere.
With the construction of a new large-scale battery storage system in the heart of the Atacama Desert, the company seeks to stabilize a grid that is increasingly dependent on clean energy sources. This move is not accidental, but rather a response to the need for efficiently manage energy surpluses in one of the areas with the highest solar radiation on the planet, something that is being closely observed in Europe in order to replicate similar models.
El Romero: a key piece for the electrical grid
The core of this news lies in the El Romero photovoltaic plant, an already leading facility in the sector with its 246 MWp. Now, a battery storage and energy efficiency system (BESS) with a power output of 196 MW and a capacity of 980 MWh will be added. In simple terms, this means the system will be able to supply electricity to the grid uninterruptedly for five hours straight, even when there is not a single ray of sunlight on the panels.
This new asset, expected to be operational by the end of 2027, represents a significant leap forward for the company. It's not just about installing solar panels, but about equipping the system with the intelligence needed to decide when to release that energy. Ultimately, the goal is to security of supply is guaranteed without having to resort to more polluting sources when demand is tight.
For our readers in Spain, these types of projects serve as a model for future plants across Europe. BESS technology is proving to be the ideal solution for avoid energy spillsThose moments when more is produced than the network can absorb, and which, unfortunately, still occur far too often.
Malgarida and the 2 GWh target
But be aware, this isn't just about El Romero. This announcement complements another project of similar dimensions that the company already has underway at the Malgarida solar complex. That system, which is already under construction, will add another gigawatt-hour of capacity, making it clear that... betting on large-scale storage It's not a bluff, but a central pillar of their business.
Combining both projects, Acciona EnergĂa will have a presence in Chile with a capacity of nearly 2 GWh. This impressive figure will allow the company to fully optimize its asset portfolio. In such a competitive market, being able to shift energy delivery to the most profitable hours or necessary is what makes the difference between an average plant and a state-of-the-art infrastructure.
Network stability is another strength of this technology. By acting as a buffer, the batteries can absorb fluctuations and maintain voltage at appropriate levels. This is something that technicians greatly value, since strengthens the robustness of the local electrical system in the face of possible unforeseen events or unexpected consumption spikes.
A consolidated presence in Chilean territory
Today, the firm already manages a significant installed capacity of 922 MW in the country. Its portfolio is quite varied and balanced, comprising three wind farms (Punta Palmeras, San Gabriel, and Tolpán Sur) and four large-scale photovoltaic plants. This asset base is what allows it to the integration of new storage technologies be much more fluid and effective from an operational point of view.
It is interesting to see how a Spanish-owned company exports this technical knowledge to international markets, consolidating jobs and technology that then benefit the European industrial ecosystem. The Atacama Desert has become a real laboratory for the energy transitionwhere solutions are tested that sooner or later will become the standard in our latitudes.
The company's ambitious roadmap not only strengthens its position in Latin America but also sends a clear message to the global market about the viability of these systems. With these batteries now operational, a giant leap forward has been taken in moving renewable energy from being seen as a secondary source to a primary one. lead the baseload of electricity consumption daily in a reliable and sustainable way.
This massive deployment of BESS technology in projects like El Romero and Malgarida demonstrates that storage is an inseparable partner of modern photovoltaic generation. By doubling its planned capacity, the company not only improves the efficiency of its existing assets but also anticipates the challenges of an electrical grid that demands ever-increasing amounts of energy. flexibility and quick response in the face of changes in production and consumption.
