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Aneel approved the first energy storage project in lithium batteries. The initial investment will be BRL 146 million to put the transmission system underway
The National Electric Energy Agency (ANEEL) approved, this week, the first large-scale energy storage project in lithium batteries in the national transmission system. The initiative is led by Isa Cteep, who will invest around R$ 146 million in a 30 MW energy storage system that will be installed at the Registro (SP) substation, whose mission is to supply the south coast of São Paulo.
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Energy storage project approved by Aneel will generate around 400 MW
According to the company, the lithium batteries will be placed in an area of approximately 4 m³, similar in size to around 30 containers and capable of meeting the maximum demand on the South Coast, which is at least 400 MW.
The technology will act at times of peak consumption as a reinforcement to the transmission system, generating additional energy for about two hours, totaling 60 MWh and avoiding interruptions in supply due to heavy use during this period.
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For Rui Chammas, CEO of the company, the project approved by Aneel is a historic milestone for the energy sector and will serve as a laboratory for innovation, generating debates on how to insert energy storage in batteries, due to its operational flexibility and for its immediate response capacity, which is highly demanded in the transmission system.
Project approved by Aneel will be ready in November 2022
The forecast is that the energy storage work will be delivered in November of next year, with the mission of meeting the summer demand from 2022/2023. The Allowed Annual Revenue, due to the construction of the project approved by Aneel, will be approximately R$ 27 million.
The battery storage system can be used in several ways, such as relieving congestion in the electrical system to ensure the operation of the transmission system as a whole, as in frequency and voltage control, in compensating for the variability of energy sources solar and wind power, making possible a greater integration to the SIN.
It is worth remembering that the use of batteries in the national electricity sector has been developed since 2016, when Aneel launched the Public Call 021/20166, where 23 Research & Development projects that were part of storage technologies were selected.
Isa Cteep project seeks sustainability of the Brazilian transmission system
The company, alongside USP, has studied the feasibility of using this solution in the transmission system since 2018, before presenting the Registro (SP) substation project to the transmission system planning bodies and the regulator, being the first and only specific case of this type of application.
The company's project also aims at a smaller environmental impact, as it will avoid the application of systems that need diesel generation. With the batteries, the emission of 1.194 tons of polluting gases will be reduced after just two years of using the technology, in addition to carrying out works in areas of environmental preservation, such as the Serra do Mar State Park.
