Brazil 2026 electricity tariffs seen up 9.4%, boosting solar viability

Brazil's energy regulator Aneel projects a 9.4% average tariff increase for 2026, well above inflation forecasts (IGP-M 4.4%, IPCA 5.0%), driven by financial costs, sectoral charges, and energy purchases. The rise strengthens the economic case for distributed solar generation, while hydroelectric renegotiations inject R$5.5 billion into affected regions. The tariff outlook is a projection, not a final decision, and actual increases may vary by distributor.