Unauthorized expansion in distributed generation: between necessary oversight and the limits of distributors' actions.

Article published in Magazine Canal Solar – Vol. 7, No. 5 October/2026

The expansion of distributed micro and mini-generation (DMM) has definitively altered the dynamics of the Brazilian electricity sector. Consumers have moved from a purely passive role to becoming energy producers as well, bringing new challenges related to network operation, distribution planning, billing, and the oversight of connected systems.

In this scenario, an expression has begun to occupy increasing space in regulatory discussions: "unauthorized expansion." In general terms, it is used to designate situations in which there is an increase in the power of a micro or mini-distributed generation plant without the corresponding analysis and approval of the distributor.

The issue, however, requires caution. The physical existence of new equipment in a power plant does not, in itself, authorize automatic conclusions about fraud, irregular receipt of benefits, or risk to the electrical system.

Between identifying a physical modification and imposing regulatory consequences, there is a path that necessarily involves legislation, the technical characterization of the alteration, and due administrative and/or judicial legal process.

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