TSO inaugurates 30MW BESS in Brazil

November 30, 2022
LinkedIn
Twitter
Reddit
Facebook
Email

A 30MW battery energy storage system has been inaugurated by transmission system operator (TSO) ISA CTEEP in Brazil.

The TSO announced the energising of the BESS yesterday (29 November), which it said made it the first TSO to have a large-scale storage system on the country’s transmission network.

It didn’t disclose the location but said the BESS would be discharged during peak demand periods to support the electricity network, increasing the security and reliability of the service. A press release indicated the system has a two-hour discharge generation, making its capacity 60MWh.

A total of US$27 million was invested in the project and the TSO’s permitted annual income from the unit is approximately US$5 million.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

ISA CTEEP is active in 17 of the 26 states in Brazil and transmits approximately 30% of all electricity produced in the country, and is part of the ISA Group, which is active in other LATAM countries.

Juan Emilio Posada Echeverri, president of ISA Group, said: “This project has provided us with great learning and we believe that, due to its pioneering nature, it will be a great laboratory for the sector and for the other ISA companies.

“Precisely, one of the great challenges of the energy transition for ISA is the adaptation of the existing network and achieving a better use of the available capacity. In this sense, batteries are a sample of how technology and innovation enable increasingly flexible and intelligent systems, maintaining reliability and resilience as a priority.”

The project appears to be similar in terms of use case to so-called ‘Grid Boosters’ being launched in Germany by some of its TSOs, including one which system integrator Fluence recently announced it would deploy.

Although a large market, Brazil has been relatively quiet for battery energy storage announcements despite being a relatively early mover in trialling various different battery chemistries, as Energy-Storage.news reported back in 2018. Two years later, BloombergNEF reported that mining giant Vale would deploy a 5MW/10MWh system, the country’s largest.

Read previous Energy-Storage.news coverage of developments in Brazil here.

13 October 2026
Santiago, Chile
Energy Storage Summit Latin America brings together developers, investors, utilities and policymakers to explore how storage is advancing system stability, regulation, deployment and new revenue models across the region. With insights from Chile, Argentina, Brazil, Mexico and beyond, the Summit focuses on financing, policy clarity, hybridisation, supply chain development and project optimisation as LATAM accelerates its storage buildout.

Read Next

January 13, 2026
Aurora Energy Research has released its latest battery storage performance data, showing mixed revenue for storage across Australia’s NEM.
January 13, 2026
Horizon Power has submitted an application under Australia’s Environment Protection and Biodiversity Conservation (EPBC) Act for a 239MWh battery energy storage system (BESS) in Broome, Western Australia.
January 12, 2026
Curtailment of solar PV and wind continued to increase in Chile last year and passed 6TWh according to the Chilean renewable energy and energy storage association ACERA.
Premium
January 9, 2026
Javier Savolainen of Wärtsilä explains how Australia’s battery storage and pumped hydro fleet have been impacted by the current heatwave.
January 9, 2026
Yanara has appointed Gamuda Australia as the project delivery partner for the early contractor involvement (ECI) phase of the Mortlake Energy Hub in Victoria.