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Isa Cteep inaugurates first large-scale battery system

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Isa Cteep has put into operation the first large-scale battery power storage system in the Brazilian transmission system. The battery project is installed at a substation in Registro, São Paulo, also operated by the company.The battery systems have 30 megawatts of power and are capable of delivering 60 megawatt-hours of energy for two hours to a region of up to 2 million people. The goal is for them to act during peak consumption periods on the Southern Coast of São Paulo during the summer, especially in the year-end holidays, ensuring additional supply.In all, there are 10 containers with 180 racks of lithium batteries, which were imported from China, and occupy an area of nearly 5,000 square meters, equivalent to half of a soccer field. The executive director of projects, Dayron Urrego, and the company’s chief executive, Rui Chammas, said that the technology is expected to avoid interruptions in the power supply during load periods.The system is planned to go into operation the moment Brazil’s national grid operator ONS gives the order. The company estimates that they will probably be used on average 12 times a year. The criterion for choosing the region was that studies pointed out that the southern coast of São Paulo has a power deficiency and should be supplied by a transmission line from the 2017 auction, which is not yet ready."During the summer, it is common to have a higher demand than the system can supply, so the batteries come in to supply the peaks of this demand, but they can also have other uses," said Mr. Urrego. "The biggest peak is in the summer because of the use of air-conditioning, besides moments like Christmas and New Year’s Eve."Storage systems are considered the next technological frontier in the energy transition, because they play the role of guarantee of supply since they have characteristics - such as inertia, frequency, and voltage controllers - necessary for the operation of the system with due security and resilience.In addition, the insertion of intermittent renewable generation, such as solar and wind, which cannot be stored in their original...

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