What Cemig does

Cemig (Companhia Energética de Minas Gerais) is Brazil's largest integrated electric energy company, founded in 1952 and headquartered in Belo Horizonte, Minas Gerais. The company operates across the full electricity value chain — generation, transmission, and distribution — and additionally distributes natural gas across its service territory. Cemig holds a state-concession granting exclusive rights to distribute electricity across 774 municipalities in Minas Gerais, serving over 9 million residential, commercial, industrial, rural, and governmental customers under tariffs regulated by ANEEL.

The company's product portfolio centers on regulated electricity distribution through the Cemig Atende digital platform (web portal and mobile app for iOS and Android), complemented by specialized offerings including Energia Livre (free energy market commercialization for enterprise customers, positioned as Brazil's #1 with savings up to 35%), Cemig SIM (distributed solar solutions), Cemig Agro Solar 24h (rural solar PV with battery storage), and operational platforms including PART Web and APR Web for third-party contractor project management. Technical infrastructure includes smart metering deployment (2% per year for 24 months under Brazilian regulatory mandate), centralized grid automation across substations, and a 450 MHz LTE eLTE private network deployed via strategic partnership with Huawei to enable wide-area smart grid operations across Minas Gerais.

Cemig's business model is primarily tariff-based regulated recurring revenue from distribution, supplemented by transaction-fee revenue from free energy market commercialization to large commercial and industrial customers (manufacturing, retail, agribusiness, food & beverage, pharmaceutical, sports/entertainment). Distribution channels combine digital self-service (Cemig Atende), physical customer service centers, phone/WhatsApp support, dedicated enterprise sales teams for Energia Livre, and selective processes for agricultural solar programs. The company is publicly traded on both B3 (São Paulo) and NYSE (ticker CIG), is executing a BRL 70 billion investment plan through 2030 (the largest in company history), and underwent a CEO transition in May 2026 with Alexandre Ramos Peixoto replacing Reynaldo Passanezi.

Name

Cemig

Legal name

Companhia Energética de Minas Gerais

Website

http://www.cemig.com.br/en-us/Pages/default.aspx

Company type

Public

Founded year

1952

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Cemig is Brazil's largest integrated electric energy company, operating generation, transmission, distribution, and natural gas services across 774 municipalities in Minas Gerais under a state concession. It serves over 9 million residential, commercial, industrial, and rural customers through regulated tariffs and the Energia Livre free energy market.

Ownership category

akta.pro rank

Product category

Electric Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Distribution (221122), Electric Power Generation (22111)

SIC

Electric Services (4911), Electric, Gas & Sanitary Services (4900), Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

Power Plant I&C / SCADA / DCS EPC (EUAEAAAN)

Keywords

• Electricity distribution services
• Electric power generation
• Natural gas distribution
• Free energy market
• Distributed solar energy

Headquarters

HQ city

Santo Agostinho

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Electricity Distribution: Core regulated electricity distribution services to over 9 million customers across 774 municipalities in Minas Gerais, generating revenue through tariff-based pricing (bandeiras tarifárias system) and regulated rates approved by ANEEL.
2. Free Energy Market (Energia Livre): Commercialization of energy in the free market (Mercado Livre de Energia), allowing large commercial and industrial customers to purchase energy directly, positioning Cemig as Brazil's #1 in energy commercialization with savings up to 35% for customers.
3. Electricity Generation: Power generation through hydroelectric and other energy sources, including distributed generation programs and solar energy solutions through Cemig SIM.
4. Natural Gas Distribution: Distribution of natural gas across service territory, expanding the company's integrated energy portfolio.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels7 records

Core offering

Cemig is an integrated electric energy company that generates, transmits, distributes, and commercializes electricity to over 9 million customers across 774 municipalities in the Brazilian state of Minas Gerais under a state-concession regulated by ANEEL. Beyond electricity, the company distributes natural gas across its service territory and offers distributed solar generation solutions through its Cemig SIM and Cemig Agro Solar programs. It also commercializes energy in Brazil's free energy market (Mercado Livre de Energia) through its Energia Livre brand for large commercial and industrial customers.

Product overview

CEMIG is Brazil's largest integrated electric energy company operating across generation, transmission, distribution, and commercialization of electricity, as well as natural gas distribution and solar energy solutions. The product portfolio centers on the Cemig Atende digital platform for customer service, complemented by specialized platforms including PART Web and APR Web for third-party contractor and technical professional project management, UniverCemig for corporate training, and the Portal de Compras for supplier relations. The Energia Livre Cemig and Cemig SIM brands serve the free energy market and distributed solar segments respectively. The company serves over 9 million customers across 774 municipalities in Minas Gerais through physical and digital service channels.

Differentiator

Problem solved

Functional benefit

Brands

• Energia Livre Cemig: Free energy market commercialization service allowing businesses to save up to 35% on energy bills with renewable energy certificates
• Cemig Atende
• Cemig SIM
• Cemig Agro
• UniverCemig

Products and services

• Energia Livre Cemig Free energy market service allowing large commercial and industrial customers to purchase electricity directly, with potential savings of up to 35% versus regulated tariffs, renewable energy certificates, and digital contract management. Requires R$5,000/month minimum bill threshold.
• Cemig Atende (Digital Customer Service Platform) Digital customer service portal and mobile application (iOS/Android) enabling residential and business customers to view bills, report power outages, manage accounts, request new connections, schedule appointments, and access tariff information.
• Cemig SIM (Distributed Solar Solutions) Solar energy solutions brand offering solar panel installation services and distributed generation options for residential and commercial customers under Cemig's distributed generation programs.
• CEMIG Agro Solar 24h Program Selective program promoting solar photovoltaic generation systems with battery storage (BESS) for rural producers in Minas Gerais, aimed at improving energy supply reliability, reducing operational costs, and promoting energy autonomy for the agricultural sector.
• Natural Gas Distribution Service Distribution of natural gas across Cemig's service territory in Minas Gerais, expanding the company's integrated energy portfolio to complement its electricity business with subscription-based recurring revenue.
• Electricity Distribution Service (Regulated) Regulated electricity distribution services to over 9 million residential, commercial, industrial, and rural customers across 774 municipalities in Minas Gerais, with tariff-based pricing (including the Bandeiras Tarifárias adjustment system) approved by ANEEL.
• Electricity Generation Service Electricity generation through hydroelectric plants and other energy sources, forming part of Cemig's integrated energy operations along with transmission, distribution, and commercialization.

Quantifiable outcome

• Savings of up to 35% on energy bills for free market customers
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• HuaweicoreTechnology or Integration · 7 May 2026Cemig selected Huawei as strategic partner through public bidding process to implement eLTE Private Network Solution operating on 450 MHz frequency. This high-capacity telecommunications network will provide wide-area coverage across the entire state of Minas Gerais, supporting the company's largest-ever investment plan to double substations and modernize operations. The 450 MHz band was chosen for its 3GPP compliance, extended coverage capabilities, cost efficiency, and global adoption in the energy sector. This addresses Cemig's identified limitation in telecommunications reach as its electricity grid continues expanding.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Enel Brasil: Enel Brasil (formerly Eletropaulo) is the largest electricity distributor in São Paulo state, serving millions of customers. It is a direct peer to Cemig as a Brazilian integrated electric utility with regulated distribution, generation, and free energy market activities under similar ANEEL regulation.
• EDP Energias do Brasil: EDP Energias do Brasil is the local subsidiary of EDP Energias de Portugal, operating electricity distribution in Espírito Santo and parts of São Paulo plus generation assets. Direct peer as a Brazilian integrated electric utility under the same ANEEL regulatory framework.
• CPFL Energia: CPFL Energia (controlled by State Grid of China) is one of the largest private-sector electric utilities in Brazil, with distribution operations across São Paulo, Rio Grande do Sul, Paraná, and Minas Gerais. Direct peer given overlapping regulated distribution, generation, and commercialization business in Brazil under ANEEL regulation.
• AES Brasil: AES Brasil operates electricity generation (hydro, wind, solar) and transmission in Brazil, and was acquired by Auren Energia. Direct peer given overlapping generation portfolio, free energy market activities, and similar Brazilian regulatory environment as Cemig's generation business.
• Neoenergia: Neoenergia is the Brazilian subsidiary of Iberdrola, operating across generation, transmission, and distribution in multiple Brazilian states. Direct peer to Cemig as a multi-state integrated electric utility with overlapping service territory in some areas and similar regulatory exposure.
• Light S.A. Light S.A. is a Brazilian integrated electric utility with distribution focused on Rio de Janeiro state, serving millions of customers. Direct peer given similar regulated distribution, generation, and commercialization model under ANEEL oversight, though with different geographic concentration.
• Engie Brasil: Engie Brasil is a major electricity generator in Brazil with substantial hydroelectric, wind, and solar assets, plus transmission and gas operations. Peer given overlapping generation footprint, free energy market activities, and integrated energy platform similar to Cemig.

Broad incumbents

• ISA Cteep: ISA Cteep is one of the largest electricity transmission operators in Brazil, controlled by ISA (Colombia). Broad incumbent peer given overlapping transmission infrastructure in Brazil's interconnected grid, though focused exclusively on transmission rather than integrated utility operations.
• Equatorial Energia: Equatorial Energia is a Brazilian multi-utility holding with electricity distribution, transmission, and sanitation operations across multiple states. Broad incumbent peer given larger and more diversified portfolio across Brazilian regulated utility sectors.
• Eletrobras: Eletrobras is the largest electric power holding company in Latin America, with generation, transmission, and distribution subsidiaries across Brazil. Broad incumbent peer given much larger scale, federal government control, and overlapping integrated utility operations across multiple Brazilian states.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/cemig_energia
• Facebookfacebook.com/cemig.energia
• LinkedInlinkedin.com/company/cemig

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds5 records

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cemig