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Energy storage has gained unprecedented scale in Chile with 38 systems under construction, 13 in testing phase, 2 GW already installed, and progress so rapid that the country could meet a 6,000 MW target, originally projected for 2050, by the end of 2026 or early 2027
Energy storage has entered a new phase in Chile with the release, in March, of the Energy Sector Construction and Investment Projects Report by the Chilean Ministry of Energy. The document shows that the country already has 38 storage systems under construction, totaling 4,597 MW and 18,780 MWh, with an investment of US$ 4.1 billion, in addition to already accumulating 2 GW of installed capacity.
This progress is happening in Chile at a time of strong expansion in the energy sector, with 138 projects under construction, including power plants, transmission, and storage infrastructure, which together represent US$ 11.7 billion in investments. The most striking data, however, lies in the pace of energy storage, as the ministry itself indicates that, maintaining the schedule of ongoing projects, the 6,000 MW target for 2050 could be achieved by the end of 2026 or early 2027.
What explains the acceleration of energy storage in Chile
The surge in energy storage in Chile does not appear as an isolated movement. It is part of an environment of strong expansion in the electricity sector, where the participation of non-conventional renewable sources already accounts for 51% of the installed capacity in operation, within a system that exceeded 38,193 MW in March.
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In this scenario, storage plays a central role in supporting the expansion of renewables and increasing grid flexibility. What once seemed like a long-term goal is now gaining industrial delivery pace, with dozens of systems advancing simultaneously and billions of dollars being directed to this front.
The numbers that show the scale of the turnaround
The report’s data helps show why Chile is attracting attention. In the field of energy storage, there are 38 systems under construction, with 4,597 MW and 18,780 MWh, in addition to 13 systems in the testing phase, totaling 2,119 MW and 9,708 MWh.
Furthermore, two new systems came into operation in March. The first was BESS Víctor Jara, in Tarapacá, with 200 MW and 1,000 MWh. The second was BESS Andes III, Phase I, in Antofagasta, with 171 MW and 514 MWh. These deliveries help explain why the 2,000 MW target for 2030 was already reached on March 31, 2026, much earlier than originally anticipated.
How Chile anticipated a seemingly distant goal
One of the most impressive points of the report is the shift in the timeline. The 2,000 MW storage target for 2030 was already met by the end of March 2026, with the commissioning of the projects mentioned by the ministry.
More than that, the document states that, considering the projects already underway, the 6,000 MW target for 2050 could be reached by the end of 2026 or early 2027. In practice, this means that Chile could anticipate by more than two decades a goal that previously seemed much more distant.
Where are the most relevant projects under construction
The largest generation projects under construction are concentrated in Antofagasta, a region that appears as one of the most strategic hubs of this new phase. One of them is PFV + BESS Cristales, with 400 MW of solar energy and a 340 MW and 1,360 MWh storage system.
The other is the Pampas Hybrid Project, also by AES Andes, with 348 MW of generation and an additional 340 MW and 1,360 MWh of storage. These projects show that the advancement of energy storage in Chile is not happening in isolation, but integrated with large-scale renewable plants.
What happens alongside the advancement of storage
The report shows that the Chilean energy sector is growing on several fronts simultaneously. In energy generation, there are 53 power plants under construction, totaling 3,325 MW and US$ 4.605 billion in investment.
Solar energy leads with 2,294 MW, equivalent to 69% of the capacity under construction, and accounts for 51% of the investment, with US$ 2.340 billion. Wind energy follows, with 793 MW and US$ 1.561 billion. This reinforces the idea that energy storage is being built alongside, and not separate from, renewable expansion.
What is under environmental evaluation and why this expands the scale of the movement
In addition to what is already under construction or in testing, Chile also maintains a robust pipeline of projects under evaluation. In the Environmental Impact Assessment System, the energy sector closed March with 141 projects, totaling US$ 51.664 billion.
Of this total, 21 projects are autonomous storage systems, representing 4,625 MW and 23,493 MWh, with an investment of US$ 4.666 billion. There are also 105 generation projects, 13 transmission projects, and two green hydrogen projects in Magallanes, valued at US$ 27 billion. This shows that the current wave may be just part of an even larger expansion.
Transmission also takes center stage in the change
The growth of the system does not depend only on power plants and batteries. Transmission also gains importance, with 47 projects under construction for the National and Zonal systems, totaling 2,096 km of new lines and US$ 3 billion in investments.
The largest of these is the HVDC Kimal – Lo Aguirre Electric Transmission Line, with 500 kV, 1,342 km in length, and an investment of US$ 2 billion. This data is important because it shows that the expansion of energy storage is being accompanied by a reinforcement of the necessary infrastructure to evacuate and integrate this new capacity.
Why this movement could change Chile’s role in the energy sector
What is happening in Chile goes beyond a simple sum of projects. The country is rapidly building a foundation of renewable generation, storage, and transmission that could reposition it as one of the fastest references in the region for modern energy infrastructure.
When a country reaches a goal set for 2030 by March 2026, and by 2027 is already flirting with an objective designed for 2050, what is at stake is not just growth, but a change in status. Storage ceases to be a promise and begins to function as a concrete part of the transformation of the electrical system.
What this billion-dollar turnaround signals for the coming years
If the current schedule is maintained, Chile could enter the coming years with a capacity much higher than imagined recently. The volume of projects under construction, in testing, and under evaluation shows a market in full acceleration, with billions of dollars being directed towards technology, infrastructure, and renewable integration.
The Chilean case suggests that energy storage is no longer just a complementary tool. It is beginning to appear as a central axis of a structural change, capable of providing more security, flexibility, and scale to the country’s energy expansion.
If Chile truly manages to hit an energy storage target by 2027 that seemed reserved for 2050, are we seeing an impressive exception or the beginning of a regional race that could surprise much more?
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