What Astra Energia does

Astra Energia is a Brazilian shared solar energy subscription company that connects electricity consumers in Minas Gerais to remotely operated solar plants via Brazil's distributed generation sharing (GDC) framework regulated by ANEEL Resolutions 687/2015 and 1000/2021 and Lei 14.300/2022. Operating exclusively within the Cemig (Companhia Energética de Minas Gerais) concession area under the legal entity ASTRA GESTAO DE ENERGIA LTDA (CNPJ 65.022.917/0001-32), Astra enables residential (B1), rural (B2), commercial/industrial (B3), and corporate (CNPJ) consumers to receive energy credits on their electricity bills without installing rooftop panels. The core offering, "Energia Solar por Assinatura," grants discounts of 15-30% on the compensable tariff (up to 25% for most residential customers), with no adhesion fee, no fidelity period, and cancellation at any time. Generation capacity is sourced from 25 own solar plants aggregating 145,000 MWh/year of production, supported by affiliated Astra Solar within parent Grupo Astra.

The company's customer-facing platform is a fully digital self-serve web application: a 4-step onboarding flow (registration, bill upload, digital contract, Cemig activation) hosted on Vercel with a Supabase backend on AWS São Paulo, Cloudflare CDN, and an AI/OCR pipeline (Google Cloud Vision and Claude Vision API) that extracts data from uploaded utility bills. Backend integrations include Chatwoot for live chat, PostHog and GA4 for product/behavior analytics, Meta Pixel and Google Ads for paid acquisition, and Resend for transactional email; WhatsApp serves as the primary human touchpoint. A consolidated monthly Astra invoice combines SCEE energy credits (Item 01) with residual Cemig network charges (Item 02), and customers manage everything via an online dashboard.

Revenue is generated through recurring monthly subscriptions tied to allocated solar generation, augmented by a two-sided R$100 referral credit program ("Indique e Ganhe") that drives customer-to-customer acquisition. Astra targets primarily residential customers (B1, the largest segment) with secondary emphasis on commercial, rural, and corporate accounts. Marketing is content-led (blog/SEO on Cemig tariff topics) supplemented by paid digital advertising and referral virality, with no field sales force, retail presence, or reseller network. Co-founder and CEO Gustavo Mendes leads the company, which remains privately held with no disclosed funding rounds to date.

Name

Astra Energia

Legal name

ASTRA GESTAO DE ENERGIA LTDA

Website

https://astraenergia.com.br

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

1–10 employees

Short description

Astra Energia is a Brazilian shared solar energy subscription company operating within Cemig's Minas Gerais concession, enabling residential, commercial, rural, and corporate electricity consumers to receive up to 25% discounts on their bills via remote solar plant credit allocation under ANEEL regulation.

Ownership category

akta.pro rank

Product category

Shared Solar Energy Services

NAICS

Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Community Solar Development & Subscription Management (EUAMAJAA)

Keywords

• Shared solar energy
• Solar energy subscription
• Distributed generation services
• Renewable energy credits
• Electricity bill savings

Headquarters

HQ city

Belo Horizonte

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Shared Solar Energy Subscription (Energia Solar por Assinatura): Customers pay a monthly fee to participate in the solar consortium and receive energy credits that are applied to their electricity bill. The fee covers the allocated share of solar generation from Astra's remote plants. Discounts range from 15% to 30% of the compensable energy tariff (tarifa compensável) on the Cemig bill. Customers receive a consolidated monthly invoice from Astra detailing compensated energy (Item 01) and network charges (Item 02), payable via boleto or PIX.
2. Referral Credits (Indique e Ganhe): A two-sided referral program where both the referrer and the referred customer each receive R$100 in credits applied to their Astra monthly bill. This drives new customer acquisition at effectively zero cost while increasing customer lifetime value through bill credits rather than cash payouts.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Astra Energia operates 25 remote solar plants generating 145,000 MWh/year and offers shared solar energy subscriptions (geração distribuída compartilhada) to consumers within the Cemig concession area of Minas Gerais, Brazil. Customers join a legally constituted solar consortium and receive monthly energy credits applied to their electricity bill through the SCEE mechanism regulated by ANEEL and Lei 14.300/2022. The subscription delivers up to 25% discount on the compensable tariff without any physical installation, with a fully digital 4-step onboarding (sign up, account creation, digital contract, Cemig activation).

Product overview

Astra Energia offers a unified solar energy subscription platform that enables consumers to save up to 25% on electricity bills through shared solar energy from remote plants. The core product, Energia Solar por Assinatura, is supported by a customer referral program (Indique e Ganhe), an online savings simulator, and a customer dashboard for managing bills and accounts. The platform integrates with Cemig's compensation system (SCEE) for credit application and provides multi-channel customer support. All services are 100% digital with no physical installation required.

Differentiator

Problem solved

Functional benefit

Products and services

• Energia Solar por Assinatura (Shared Solar Energy Subscription) Subscription service that gives consumers and businesses within the Cemig concession area in Minas Gerais up to 25% discount on their electricity bill by joining a solar consortium that shares energy from Astra's 25 remote solar plants. Credits are delivered automatically via the SCEE mechanism and applied to the customer's Cemig bill. There is no installation, no adhesion fee, no fidelity period, and cancellation is penalty-free. Customers receive a consolidated monthly Astra invoice covering both the compensated energy share and the network charges.
• Indique e Ganhe (Referral Program) Customer-to-customer referral program offering R$100 credit on the Astra bill for both the existing customer (referrer) and the new customer (referee) upon activation of the referred account. Eligible to all existing Astra subscribers with no cap on referrals. Drives organic acquisition through personalized links shared via WhatsApp and social channels, with attribution tracked via URL parameters, cookies, and local storage within a 30-day window.

Quantifiable outcome

• Up to 25% discount on compensable electricity tariff for most residential customers
• +4 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability6 records

Feature3 records

Partnerships

One partnership is on record.

• Cemig (Companhia Energética de Minas Gerais)coreTechnology or IntegrationCemig is the electricity distribution company covering virtually all of Minas Gerais. Astra shares customer registration and consumption data with Cemig to link consumer units to solar plants, enable SCEE credit compensation, and facilitate billing integration. Astra is not affiliated with Cemig — the relationship is purely regulatory/commercial within the GDC framework established by ANEEL.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Equatorial Energia: Brazilian multi-utility holding company operating distribution across multiple states with growing renewable and distributed generation interests. Represents an incumbent that could replicate Astra's GDC subscription model under utility-scale economics.
• Neoenergia: Iberdrola subsidiary operating distribution and generation across multiple Brazilian states, with active renewable and distributed generation programs. A broad incumbent with the scale and geographic footprint to challenge regional GDC players like Astra.
• Enel Brasil: Major multi-utility operator in Brazil (distribution in São Paulo, Rio, Ceará) with growing renewable generation portfolio. Enel has been actively piloting shared solar and community energy programs that overlap with Astra's model at utility scale.
• Light S.A. Distribution utility in Rio de Janeiro with adjacent commercial offerings. While not directly in GDC subscription at Astra's scale, Light's customer-facing energy services overlap conceptually with Astra's discount-oriented value proposition.
• Engie Brasil: One of the largest private energy companies in Brazil, with generation, distribution, and commercial operations across renewables. Could enter or already operates in shared distributed generation at scale, representing an incumbent threat with vastly greater capital and geographic reach than Astra.

Emerging players

• Solfácil: Brazilian solar fintech and marketplace focused on financing rooftop solar installations. Adjacent rather than directly competitive — operates in solar financing rather than shared subscription — but serves the same end-customer pain of accessing solar savings without upfront capital.
• Portal Solar: Brazilian solar marketplace and lead-generation platform connecting consumers to installers. Adjacent to Astra in customer acquisition and solar market development, but competes in the rooftop installation segment rather than shared subscription.

Direct peers

• 2W Energia: Brazilian renewable energy retailer (commercializadora) operating in the deregulated energy market and increasingly in distributed generation. Overlaps with Astra in serving SMB and corporate energy consumers seeking renewable supply without capex.
• Reverde Energias Renováveis: Brazilian energy company offering shared solar and renewable energy subscriptions to residential and commercial consumers, leveraging the same ANEEL GDC regulatory framework. Competes with Astra on the same value proposition of bill discounts without rooftop installation.
• Sunne: Brazilian shared solar subscription company operating a similar GDC (geração distribuída compartilhada) model, offering residential and SMB customers discounted electricity bills via remote solar plants and SCEE credits. Most direct comparable to Astra's core subscription offering in Brazil.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/profile.php

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Astra Energia