Brazil energy regulators propose market restrictions and tariff caps

Brazil's National Electric Energy Agency (Aneel) is proposing new regulations to prevent energy distributors from using affiliated companies to dominate the free energy market. The proposal aims to curb the practice where economic groups use subsidiaries to capture high and medium voltage consumers within their local concession areas, leveraging existing infrastructure and data. Current data shows high territorial concentration, with some affiliates concentrating nearly 100% of their portfolios in their parent distributors' areas.

The proposed rules include prohibiting the use of confusing logos and preventing the unauthorized sharing of consumer data for migration purposes. Aneel is considering three regulatory models: a total ban on retail activity for groups with concessions, a permanent geographic restriction, or a five-year temporary ban.

Separately, the Infrastructure Services Commission has approved a bill that would cap annual electricity tariff increases at the rate of inflation, except in justified cases. The bill, PL 170/2026, seeks to standardize adjustment methodologies nationwide and includes a special regulatory regime for Northern Brazil to prevent sharp price spikes and protect low-income consumers in regions with historically high costs.