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Setor Elétrico
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Entry · Regulation

ANEEL: Brazilian Electricity Regulatory Agency

Who regulates and oversees the electricity sector?

● checked against the primary source on Oct 9, 2026Source: Presidency of the Republic

Acronyms: PLD, Settlement Price for Differences (spot price).

In one sentence

Special-regime federal agency, linked to the Ministry of Mines and Energy, whose purpose is to regulate and oversee the production, transmission, distribution, storage and trading of electricity, in accordance with the policies and guidelines of the federal government.

Real example

Hourly PLD ceiling in force

R$ 1,611.04/MWhNature of the data: Observed

Jan 1, 2026 to Dec 31, 2026 · Short-Term Market (all submarkets)

Source: ANEEL, Despacho ANEEL nº 3.850/2025. Reference up to Dec 31, 2026. Captured on Sep 30, 2026.

An ANEEL act read in the Regulation panel: the hourly PLD ceiling in force in the year, as written in the act.

See in the panel: Regulation: PLD limits

Observed: Value published directly by the official or primary source.

Why it matters

Among the powers the law gives it are approving the rules and procedures for trading electricity, setting the use tariffs of the transmission and distribution systems and permanently overseeing the provision of the service. ANEEL's name appears as the source of tariffs, price limits, quality indicators and norms in several panels of the observatory.

Not to be confused with

  • ONS (National Electric System Operator)

    ANEEL regulates and oversees the power sector; the ONS operates the interconnected system and is overseen and regulated by it. The ONS proposes the transmission operation rules, and ANEEL is the one that approves them.

  • CCEE (Electric Energy Trading Chamber)

    ANEEL regulates and oversees, and approves the rules and procedures for trading electricity; the CCEE, which acts under ANEEL regulation and oversight, has the purpose of enabling trading. They are different entities: the one that approves the rules is not the one that enables trading.

  • IBGE (Brazilian Institute of Geography and Statistics Foundation)

    The IBGE produces statistical, geographical, cartographic and demographic information about the country; the one that regulates and oversees electricity is ANEEL. An IBGE figure, such as that of the POF or the Continuous PNAD, describes families and households, not the power sector.

What cannot be concluded

  • The internal structure of the agency (board, superintendencies) and its bylaws were not read for this entry: it describes only what arts. 1 to 3 of the law say.
  • Art. 3 lists more powers than those cited here, and the law itself says there are other duties provided for by law.

Related entries

See in the panel

Official source

  • Presidency of the RepublicLaw No. 9.427 of Dec 26, 1996, arts. 1 and 2 (consolidated text published by Planalto, read on Oct 9, 2026) 

    In other words: the law created ANEEL as a federal agency linked to the Ministry of Mines and Energy, headquartered in the Federal District, and gave it the purpose of regulating and overseeing the production, transmission, distribution, storage and trading of electricity, following the policies and guidelines of the federal government.

    Literal excerpt from the document
    Portuguese only“Art. 1º É instituída a Agência Nacional de Energia Elétrica - ANEEL, autarquia sob regime especial, vinculada ao Ministério de Minas e Energia, com sede e foro no Distrito Federal e prazo de duração indeterminado. [...] Art. 2º A Agência Nacional de Energia Elétrica - Aneel tem por finalidade regular e fiscalizar a produção, transmissão, distribuição, armazenamento e comercialização de energia elétrica, em conformidade com as políticas e diretrizes do governo federal.”

  • Presidency of the RepublicLaw No. 9.427 of Dec 26, 1996, art. 3, items XIV, XVIII and XIX (consolidated text published by Planalto, read on Oct 9, 2026) 

    In other words: among the powers of art. 3 are approving the rules and procedures for trading electricity, setting the use tariffs of the transmission and distribution systems and permanently overseeing the service.

    Literal excerpt from the document
    Portuguese only“XIV - aprovar as regras e os procedimentos de comercialização de energia elétrica, contratada de formas regulada e livre; [...] XVIII - definir as tarifas de uso dos sistemas de transmissão e distribuição, sendo que as de transmissão devem ser baseadas nas seguintes diretrizes: [...] XIX - regular o serviço concedido, permitido e autorizado e fiscalizar permanentemente sua prestação.”

Documents accessed and text checked on Oct 9, 2026.

Check details

What the check found in the source
  • The consolidated text from Planalto shows, besides the current wording of art. 2 (given by Law No. 15.269 of 2025), the previous wording struck through; only the current one was used.
  • The versioned capture of each document, with the sha256 of the original and of the text, is in the manifest of the Learn documents folder of Oct 9, 2026.