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Regulation

Solar grid connection in Brazil

In Brazil, every grid-tied solar system goes through an approval process with the local electricity utility — known locally as homologação — before it can export energy and earn net-metering credits.

15 daysUtility access opinion
7 daysInspection
7 daysConnection

The legal framework

Distributed generation (DG) in Brazil is governed by Law 14,300/2022, the legal framework for micro and mini generation, and by ANEEL Resolution 1,000/2021 (updated by Resolution 1,059/2023), which sets the connection procedures and deadlines utilities must follow. ANEEL is the federal electricity regulator; the connection itself is handled by the local distribution utility (concessionária).

  • Microgeneration: installed capacity up to 75 kW, usually connected at low voltage.
  • Minigeneration: above 75 kW, up to 3 MW for non-dispatchable sources such as solar under the current rules (5 MW for dispatchable sources).

Net metering: the compensation system (SCEE)

Energy exported to the grid becomes kWh credits that offset the consumption of the same account, of another account with the same holder (remote self-consumption), of a shared-generation group or of units in a condominium. Credits are valid for 60 months.

Every connection still pays the minimum availability charge: the equivalent of 30 kWh/month for single-phase, 50 kWh for two-phase and 100 kWh for three-phase services.

For systems requested after 7 January 2023, Law 14,300 phases in a charge on the distribution-network portion of the tariff (the so-called Fio B) on compensated energy: 15% in 2023, 30% in 2024, 45% in 2025, 60% in 2026, 75% in 2027 and 90% in 2028, after which the rules defined by ANEEL apply. Systems requested before that date keep the previous rules until 2045.

Step by step

1

Design and paperwork

A registered engineer or technician signs the technical responsibility record (ART), the single-line diagram and the technical description of the system.

2

Access request

The installer files the request on the utility's portal with the holder's documents, the energy bill and the module and inverter datasheets.

3

Utility opinion

For microgeneration without grid works, the utility has 15 days to issue its opinion, approving or listing required changes.

4

Inspection

After installation the installer requests the inspection, which the utility must carry out within 7 days.

5

Connection

With the inspection approved, the utility installs the bidirectional meter and connects the system within 7 days.

Deadlines are the reference values for microgeneration without network works. Larger projects, or those requiring grid reinforcement, follow longer timelines.

Documents usually required

  • Access request form of the utility
  • ID of the account holder and a recent energy bill
  • ART — technical responsibility record of the designer
  • Single-line diagram and technical description of the system
  • Datasheets of the photovoltaic modules and of the inverter
  • INMETRO certificate of the inverter, when requested
  • Power of attorney (when the installer files on the holder's behalf) and, for credit sharing, the list of beneficiary accounts

Datasheets for modules and inverters are available in the Silizium datasheet library.

Main utilities

Each utility runs its own portal and adds its own requirements. Open a utility for its documents, deadlines and connection steps.

UtilityGroupState
Amazonas EnergiaAmazonas EnergiaAmazonas
Neoenergia CoelbaNeoenergiaBahia
Enel Distribuição CearáEnelCeará
EDP Espírito SantoEDPEspírito Santo
Equatorial GoiásEquatorialGoiás
Equatorial MaranhãoEquatorialMaranhão
Cemig DCemigMinas Gerais
Energisa Mato Grosso do SulEnergisaMato Grosso do Sul
Energisa Mato GrossoEnergisaMato Grosso
Equatorial ParáEquatorialPará
Energisa ParaíbaEnergisaParaíba
Neoenergia PernambucoNeoenergiaPernambuco
Copel DistribuiçãoCopelParaná
Enel Distribuição RioEnelRio de Janeiro
LightLightRio de Janeiro
Neoenergia CosernNeoenergiaRio Grande do Norte
RGE SulCPFL EnergiaRio Grande do Sul
Celesc DistribuiçãoCelescSanta Catarina
Enel Distribuição São PauloEnelSão Paulo
CPFL PaulistaCPFL EnergiaSão Paulo
CPFL PiratiningaCPFL EnergiaSão Paulo
EDP São PauloEDPSão Paulo
Neoenergia ElektroNeoenergiaSão Paulo and Mato Grosso do Sul

This page summarizes public regulation for orientation only; it is not legal advice. Check the utility's current technical standard before filing.

Frequently asked questions

What is "homologação" in Brazilian solar?

It is the informal name for the grid-connection approval of a distributed generation system: the access request to the local utility, its technical opinion, the inspection and the meter swap that allows the system to export energy.

How long does grid connection take in Brazil?

For microgeneration without network works, the reference deadlines are 15 days for the utility opinion, 7 days for the inspection and 7 days for the connection, counted from each request.

Does net metering still exist in Brazil after Law 14,300?

Yes. Exported energy still becomes kWh credits valid for 60 months; what changed is the gradual charge on the network portion of the tariff (Fio B) for systems requested from 2023 — 60% of it in 2026.

Who can file the access request?

The account holder or someone acting on their behalf, usually the installer with a power of attorney, under the technical responsibility of a registered professional.