Unanimously, the board of directors of ANEEL (National Electric Energy Agency) approved, this Tuesday (11) the result of public consultation 9/2004, on the AIR (Regulatory Impact Analysis) of the alternatives for calculating the required energy and PNTs (non-technical losses) in electricity distribution systems.
As a result, there will be a change in the calculation of the electricity tariff, starting with the next reviews and adjustments this year, and in 2026 it will be applied to companies that had already updated the tariff process. According to ANEEL, the new calculation method will be based on consumption measured by distributors, and not on what is charged on energy bills (invoiced on electricity bills).
The decision was based on the report presented by the STR (Superintendence of Tariff Management and Economic Regulation), which took into the effects of MMGD (Distributed Minigeneration and Microgeneration) and the need to standardize data from the Energy Loss Balance.
The STR suggested simplifying the SAMP (Market Information Monitoring System for Economic Regulation) database and the calculation of PNTs, eliminating the DMF (Measured and Billed Difference) calculation. The agency considered the measured market to be more in line with the physical energy purchasing needs of distributors, since the billed market has commercial implications that can cause distortions.
There was convergence with the calculation of financial components (measured market), and also for the elimination of energy price risk for the distributor between the moments of credit generation and subsequent use by prosumers. The STR considered that the proposal is in compliance with the principle of tariff moderation, as determined by Law 14.300/2022. Finally, the simplified ing treatment will occur from the fifth year after the rule change.
At the meeting of the ANEEL On Tuesday, Director Agnes Costa, the rapporteur for the case, agreed with the alternative suggested by the superintendence. Her vote was ed by the other directors, after almost two hours of discussion. The discussion had been going on since 2022. The distributors pointed out that regulatory fragility caused economic and financial imbalance in the concessionaires' cash flow. Among the main causes were technical and non-technical losses due to the expansion of the distributed generation market.
A month ago, the topic had entered the regulatory agency's agenda following a precautionary request filed by ABRADEE (Brazilian Association of Electric Energy Distributors). The entity argued that the expansion of distributed generation, especially GD1, caused a significant change between measured and billed consumption, items used in the calculation of non-technical losses. Non-technical losses are those resulting from irregular connections, where energy is consumed without payment for the input.
Regulatory-wise, part of these losses are ed on to the consumer in the distributors' tariff cycles. If the volume of losses exceeds a certain limit established by the ANEEL, the surplus is assumed as a loss by the distributors, causing an economic and financial imbalance in the dealerships' cash flow. At the time, as published by Canal Solar, there was disagreement regarding the precautionary measure, as the public consultation was still in the final stages.
History of the ime
The topic began to be debated in ANEEL in December 2022, when Subsidy Request No. 28/2022 was opened. At the time, the Agency's technical area proposed the possibility of approving non-technical losses based on the measured low-voltage market, instead of the billed one, with the aim of simplifying the database and the calculation of these losses.
Between March and May 2024, the ANEEL opened Public Consultation No. 9 to continue the discussion and gather external opinions from industry players. At the time, the Agency conducted an RIA (Regulatory Impact Analysis) and proposed four alternatives to solve the problem, with the preliminary choice being to calculate non-technical losses based on the measured market.
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