Overview
- On Monday, Nov. 9, Aneel's technical teams formally presented a proposal to the agency board to convert the optional 'tarifa branca' into a mandatory time‑of‑use plan called Tarifa Hora Certa for about 5.7 million low‑voltage units.
- The rollout would be phased by average consumption: users ≥1,800 kWh/month from April 2028, ≥1,000 kWh/month from April 2029, and ≥500 kWh/month from April 2031, with voluntary adhesion for smaller users that have compatible meters.
- Before automatic migration each step requires distributor notification and three billing cycles of informative, non‑charge statements, after which customers may opt for a temporary, higher flat tariff for up to two years.
- The rule would also cover units with micro or minigeneration (solar) that average ≥500 kWh/month and new commercial EV charging connections, with any connection requests made 90 days after the rule is published automatically subject to the hourly tariff.
- Excluded are beneficiaries of the social tariff and social discount programs, public lighting and prepaid units, and affected customers can expect greater hourly bill variability that may raise demand for storage, shifted schedules or other load‑management measures.