2025/2026 RAP Cycle
On July 15, 2025, Homologatory Resolution No. 3,481/2025 (click here) was published setting the RAP of ISA ENERGIA BRASIL and its controlled and jointly controlled companies for the provision of transmission facilities that are part of the Basic Network and other Transmission Facilities, for the 12-month Tariff Cycle covering the period from July 1, 2025, to June 30, 2026 (2025/2026 cycle).
RAP Tariff Cycle 2025/20261
1. Disregards the PA for the 2024/2025 cycle.
2. Operation and Maintenance + Retrofitting & Improvements.
According to REH No. 3,481/2025, the consolidated RAP and jointly controlled companies, net of PIS and COFINS, reached R$ 6,372.74 million for the 25/26 cycle, weighted by ISA ENERGIA BRASIL's share (as of June 2025). The RAP from the renewed contract (059/2001), including Reinforcements and Improvements, RBSE, and the Operation and Maintenance (O&M) portion, represents 56% of the total, while 44% refers to auctioned contracts resulting from transmission auctions or acquisitions (M&A).
RAP cycle evolution¹ (million)
¹ Considers the amounts established at the time of publication of the respective Ratification Resolutions of RAP for the tariff cycles.
RAP for the 25/26 cycle increased by R$ 83.5 million (+1.3%) compared to the previous tariff cycle (23/24). The main reasons for this change are:
- monetary adjustment for the 25/26 cycle (IPCA), totaling R$ 333.8 million;
- new R&I projects that started operating in the last cycle, adding R$ 105.7 million;
- decreasing trajectory of O&M RAP as established in the 2024 RTP;
- reduction of R$ 317.0 million from the RBSE financial component;
Below is a summary table of the RAP for the 25/26 cycle. The values are net of PIS and COFINS, include regulatory charges for R&D, TFSE, and RGR, and exclude CDE and PROINFA charges.
Click here to download the spreadsheet
Updated on July 30, 2025.