After the presentation of the final report on Provisional Measure 1.304/2025, Senator Eduardo Braga (MDB-AM) explained the main points of the proposal, which deals with the modernization of the electricity sector and new guidelines for energy storage in the country.
According to the rapporteur, the text preserves the rights acquired by Law 14.300/2022, guaranteeing full compensation of credits for those who already have distributed generation (DG) systems, but creates new rules for future entrants into the sector.
“The rights acquired under Law 14.300 are preserved. New entrants will have the right to store energy or will pay a fee to the sector so that the distributor can store energy at the substation located on the subvoltage network. In other words, there will also be storage on the low-voltage network, in the substations,” Braga stated.
The senator highlighted that the proposal seeks to integrate energy storage as an instrument for stability and efficiency in the national interconnected system, reducing generation cuts and increasing the flexibility of the grid.
Braga explained that the report establishes four levels of energy storage that could operate in a complementary way in the country:
- Centralized parks: Large-scale solar and wind power plants will receive price signals and tax benefits to encourage investment in batteries;
- High-voltage substations: The ONS (National System Operator) will define the strategic regions where storage systems will be installed, also with tax incentives;
- Low voltage networks: Distributors will be able to invest in batteries at local substations, managing the flow of distributed generation and reducing operational imbalances;
- Residential and commercial distributed generation (DG): Consumers and entrepreneurs will be able to install their own storage or, if they do not, pay a sector-specific fee so that the concessionaire can make the corresponding investment.
The presentation of the report was widely anticipated.
Reading the report on Provisional Measure 1.304/2025 – carried out this Tuesday (28) by the rapporteur – It was eagerly awaited by parliamentarians, associations, and representatives of the electricity sector, as the text defines the basis for the modernization of the Brazilian electricity system and the future of distributed generation in the country.
The provisional measure, nicknamed the "MP for the Modernization of the Electricity Sector," promises to bring significant changes to the rules for energy compensation, the financing of the CDE (Energy Development Account), and the integration of batteries and storage systems—issues that directly affect consumers, investors, and concessionaires.
Furthermore, the text proposes new mechanisms for balancing and stabilizing the grid, such as the possibility of sharing curtailment risks, and tax incentives aimed at storage technologies — considered strategic for enabling the expansion of renewable energy sources.
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