ANEEL speaks at Senate public hearing on energy storage

ANEEL participated in a public hearing at the Federal Senate on energy storage; Director-General Sandoval Feitosa said regulation on storage is advancing and ANEEL is prepared to license storage projects if planning requires.

• Main announcement/action: ANEEL reported on 2025-10-16 that regulation on energy storage is advancing, there are seven ad hoc concession requests for storage currently under analysis, and the agency — in coordination with ONS, EPE and the Ministry of Mines and Energy — is prepared to advance and to tender (licitar) storage projects if system planning deems it necessary. The hearing was part of the discussions promoted by the Comissão Mista da Medida Provisória 1304/2025.
• Background and other details: ANEEL highlighted a battery deployment in Registro, São Paulo that avoided the construction of a transmission line that would be used only for peak hours or local generation, demonstrating the battery’s effectiveness; batteries can be implemented autonomously (individual cost) or integrated to transmission (shared cost), with revenue sources such as price arbitrage, ancillary services, and specific auctions, and cost allocation depends on the chosen implementation model.