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Canal Solar - Government to publish rules for Brazil's first battery auction this Wednesday, says Silveira.
Government to publish rules for the country's first battery auction this Wednesday, says Silveira.
The information was confirmed by the Minister of Mines and Energy in a post on the social network X.
Canal Solar - Azul expands operations in the Free Market and reinforces the use of renewable energy through subscriptions.

Azul expands operations in the Free Market and reinforces the use of renewable energy through subscriptions.

The company will now have two more units in the ACL (Free Contracting Environment) and will have another 15 served under the energy subscription model.
Canal Solar - Axia invests in solar power plant with long-term storage for data centers.

Axia invests in solar technology with long-term storage for data centers.

According to the company, the solution can store energy for up to three days and perform dispatches for up to 17 consecutive hours.
Canal Solar - WEG bets on national manufacturing and forges partnerships for battery auction.

WEG bets on national manufacturing and forges partnerships for battery auction.

In an interview with Canal Solar, Harry Neto commented on the growth of the Brazilian storage market.
Canal Solar - Roraima Interconnection should save the electricity sector R$ 540 million per year, says EPE.

Roraima Interconnection Project Expected to Save the Electricity Sector R$ 540 Million per Year, Says EPE

A study by the state-owned company projects a reduction of up to 300 tons of CO₂ annually and new economic opportunities for the state.
Canal Solar - MME publishes decree aiming at holding three Existing Energy Auctions in November.

The Ministry of Mines and Energy (MME) publishes a decree aiming to hold three Existing Energy Auctions in November.

The auctions aim to renegotiate the contracts of distributors with energy from power plants already in operation.
Canal Solar - Casa dos Ventos and Samarco sign contract for self-generation of energy.

Casa dos Ventos and Samarco sign contract for self-generation of energy.

A mining company is joining the partnership for the Serra do Tigre wind farm, located between the states of Paraíba and Rio Grande do Norte. 
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Authors

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Rise in solar panel prices: what changes for the photovoltaic market?
Bernardo Marangon
Price of photovoltaic modules should remain low until 2025
Bruno Kikumoto
LC 224/2025: Increase in taxation on presumed profit.
Einar Tribuci
Multi-grid hybrid inverter: electrical flexibility for the diversity of grids in Brazil.
Geraldo Silveira
New opportunities in the solar photovoltaic sector
Gustavo Tegon
LRCAP Thermal Energy Systems: Are we on the right track?
José Wanderley Marangon Lima
The “Solar Cat” and the regulatory challenge
Marina Meyer Falcao
Grounding systems for photovoltaic generation plants
Paulo Edmundo Freire
The end of inertia: how the new White Tariff can reshape the low-voltage market.
Paulo Steele
Energy prices in Brazil: when regulatory governance limits the economic signal.
Pedro Dante
Solar subscription in Latin America: Brazil is already leading the next distributed generation cycle.
Silla Motta
Expanding a system without certification can be costly: understand the risks and how to comply.
Thiago Bao Ribeiro
Brazilian energy sector: challenges for this decade
Zilda Costa
"I want my battery": the strategic shift in the electricity sector.
Marcelo Rodrigues
What if I told you that credit is the engine of the solar market?
Gustavo Cintra
Architectural planning in the efficiency of solar systems integrated into architecture
Clarissa Debiazi Zomer
Canal Solar - Brazil has already accumulated 38 GW in requests for access permits for data centers, says Silveira.
Brazil has accumulated 38 GW in requests for access permits for data centers, says Silveira.
Canal Solar - Consumers will pay almost R$ 1 trillion more on their electricity bills due to decisions by the Government and Congress.
Consumers will pay almost R$ 1 trillion more in their electricity bills due to decisions by the Government and Congress.
Huawei and HDT launch 241 kWh BESS in Brazil
Huawei and HDT launch 241 kWh BESS in Brazil
Canal Solar - Energy demand expected to accelerate in June, with the Northern region leading the growth.
Energy demand is expected to accelerate in June, with the Northern region leading the growth.
Canal Solar - Electricity bills will remain higher with the yellow flag in June.
Electricity bills will remain higher with the yellow flag in June.
Canal Solar - Ranking of manufacturers that shipped the most storage systems in the 1st quarter.
Ranking: Manufacturers that shipped the most storage systems in the first quarter.
Canal Solar - Ranking of manufacturers that shipped the most storage systems in the 1st quarter.

Ranking: Manufacturers that shipped the most storage systems in the first quarter.

The global battery market grew by almost 80% in the first few months of [year].

Canal Solar - Approval of capacity auction boosts long-term energy negotiations, says BBCE.

Approval of capacity auction boosts long-term energy negotiations, says BBCE.

Last week, 508 GWh of the product were traded on screen.

Piauí receives research project on concentrated solar energy and thermal storage.

Piauí receives research project on concentrated solar energy and thermal storage.

The initiative brings together a Chinese state-owned company, researchers, and local institutions to study the

Canal Solar - ANEELNeoenergia and Equatorial launch project to make public schools benchmarks in energy efficiency.

ANEELNeoenergia and Equatorial launch project to make public schools benchmarks in energy efficiency.

With an investment of R$ 6,1 million, the initiative launched this week will benefit

Canal Solar - Diferencial Energia also files for bankruptcy protection with a debt of R$ 154 million.

Diferencial Energia also files for bankruptcy protection.

The trading company attributes the crisis it faces to regulatory changes and losses.

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Articles

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The "Solar Cat" and the regulatory challenge
The “Solar Cat” and the regulatory challenge
Self-production in the free market after Law 15.269 and new rules of ANEEL and CCEE
Solar subscription in Latin America: Brazil is already leading the next distributed generation cycle.
ANEELDecree No. 1000/2021 recognizes the need for systemic impact studies for the connection of distributed generation. However, the regulator itself has also explicitly recognized: Systems without export; Control of injected power; Dynamic limiting mechanisms; “Zero grid” operation. In other words, the Brazilian regulatory framework already allows modern systems to operate without causing the impacts traditionally associated with conventional distributed generation. This point is crucial. CPFL itself officially recognizes zero-grid systems. The discussion becomes even more relevant when one analyzes the distributor's own technical documentation. GED DIST-19397-2025 explicitly recognizes: Hybrid systems; Storage systems; Export control; Energy arbitrage; Islanded operation; Zero-grid functionalities. The standard explicitly states that "such arrangements must not allow the injection of active power into the distributor's electrical grid; that is, they must supply the local load and have zero-grid functionality." This section has enormous technical and regulatory relevance. It demonstrates that: The technology is recognized; The operational concept exists; The distributor formally acknowledges its functionality. Moreover, GED states: "hybrid systems have become an excellent solution for integrating MMGDs" and adds: "mainly with the aim of avoiding flow reversal." This is perhaps one of the most important points in the entire discussion. The distributor's own technical standard officially recognizes that batteries, EMS, export control, and hybrid systems can function precisely as mitigating mechanisms for the main basis currently used for denying access: flow reversal. The technical paradox: Here arises an extremely relevant regulatory paradox. If: Reverse flow is the problem; And batteries can mitigate it; And zero-grid systems do not export active power. Why are these systems becoming progressively unviable? From a technical standpoint, a modern hybrid system behaves profoundly differently from a conventional photovoltaic power plant. While traditional systems: Generate passively; Export surpluses automatically; Possess low operational intelligence. Hybrid systems: Monitor flow instantly; Adjust generation in real time; Control export; Charge batteries; Reduce injection; Respond dynamically to local load. In many cases, the battery ends up absorbing the surplus energy that would previously have been exported to the grid. In other words, distributed storage can act not as an aggravating factor, but as a mitigating solution to the systemic impacts of distributed generation. And this is acknowledged by CPFL's own GED (General Data Processing) department. CPFL's Manual 150217/2025 and the modeling of flow reversal studies. Perhaps the most sensitive point of the discussion lies in the analysis methodology currently used. The CPFL's "Instruction Manual for Estimated and Connection Budget Analysis for Micro and Mini Distributed Generation Systems" describes in detail: Power flow studies; Load modeling; Generation curve modeling; Flow reversal analysis criteria. The document makes it clear that the studies use: Typical curves; Statistical averages; Presumed generation; Standardized consumption and generation profiles. The methodology considers: Average curves; Historical profiles; Statistical modeling; Aggregate consumer behavior. This is perfectly normal in electrical engineering. The problem arises when this same methodology is used to evaluate intelligent hybrid systems with dynamic behavior. Intelligent systems being analyzed as passive generation. The manual itself barely goes into detail about: Dynamic EMS modeling; Instantaneous export control; Intelligent battery dispatch; Transient behavior of SAEs; Operational logic of "zero export". In practice, this raises an extremely relevant technical hypothesis: the studies currently being used may still be modeling modern hybrid systems as if they were conventional passive photovoltaic generation. This distinction is enormous. Because a system with EMS, battery, millisecond response, dynamic control, and instantaneous export limitation does not behave equivalently to a conventional photovoltaic system. This is perhaps the main technical discussion in the Brazilian distributed electricity sector today. The requirement for approvals without a clear public procedure. Another critical point is the increasing number of reported requirements related to the certification of: EMS; Hybrid inverters; “Zero export” systems; Export controllers. In principle, demanding technical safety is legitimate. However, the problem arises when: There is no transparent public procedure; There is no consolidated public list; There are no officially defined laboratories; There are no widely publicized criteria; There are no clear analysis deadlines. In practice, this creates a situation that is potentially impossible to fulfill. And here another extremely relevant aspect emerges: GED DIST-19397-2025 itself apparently does not establish a formal system of mandatory prior approval in the operational format reported by the market. The document primarily requires: Proof of functionality; Tests; Technical documentation from the manufacturer. GED establishes “tests or a supplier statement that proves the system's operation” and “tests or a supplier statement that proves the system's operation if it operates in a way that limits injected power”. This suggests that: The normative logic is centered on technical verification; not necessarily on discretionary approvals without clear public operationalization. GED 15303 and the issue of microgeneration Another relevant point is that GED 15303 itself recognizes the regulatory limits defined byANEELANEELZero grid is recognized; the distributor recognizes hybrid systems; distribution networks recognize batteries as mitigating reverse flow; but simultaneously: projects cease to be approved; requirements become practically impossible; criteria cease to be transparent; the market loses predictability. This creates a scenario that could potentially be characterized as an indirect technological blockade. And this has profound impacts. The economic impact of distributed storage lock-in: The distributed storage market represents: Modernization of electrical infrastructure; Increased resilience; Support during blackouts; Mitigation of peak loads; Reduced demand; Greater systemic stability; National technological advancement. Furthermore, this is a sector intensive in: Engineering; Software; Automation; Power electronics; Technical qualification. Its practical infeasibility could: Deter investment; Reduce competitiveness; Eliminate jobs; Delay innovation; Delay Brazil's energy transition. The apparent divergence between standard and operational practice: A joint reading of REN 1000, PRODIST, CPFL's GEDs, and Manual 150217/2025 suggests a possible divergence between the normative recognition of the technology and the practical operationalization of the connection process. The standards recognize hybrids, "zero grid," energy arbitrage, reverse flow mitigation, and EMS. But the market reports widespread negatives, regulatory uncertainty, lack of predictability, and opaque criteria. This scenario generates increasing litigation, market contraction, legal uncertainty, and a deterioration of regulatory confidence. The sector needs clarity, not a lack of rules. The debate should not be conducted as a matter of "liberating everything" or "eliminating technical criteria." The sector needs objective criteria, methodological transparency, predictability, auditable procedures, and alignment between standards and operational practice. If "zero export" systems require specific validation, then the market needs to know the criteria, the required tests, the accepted laboratories, the approved equipment, the processes, and the deadlines. Without this, an environment incompatible with regulatory security is created. In conclusion, the debate about hybrid systems and distributed storage is no longer just a technical discussion. It came to represent a strategic discussion about innovation, energy decentralization, modernization of the electricity sector, technological competitiveness, and the future of the Brazilian energy transition. CPFL's own technical documentation demonstrates that: The technology is recognized; The "zero grid" concept exists; Batteries are accepted as mitigating factors for reverse flow; Hybrid systems have regulatory support. Therefore, the main question no longer seems to be "whether the technology can exist". The central discussion then becomes: how to prevent technical requirements lacking transparency, clear public procedures, or methodological adaptation from ultimately functioning, in practice, as silent mechanisms to block the distributed storage market in Brazil. The silent blocking of distributed storage in Brazil
The silent blocking of distributed storage in Brazil
  • Opinion Article
Battery auction in Brazil: the answer the electricity sector can no longer postpone.
  • Opinion Article
Relationship as a business strategy
  • Opinion Article
Brazil experiences both advances and setbacks in coal policy.
  • Opinion Article
The clean energy inflection point has arrived, and Brazil may be going against the grain.
  • Opinion Article
The electricity sector is back at the center of the debate with discussions about the "Eletrolão" scandal.
  • Opinion Article
Who wants to throw away 8.888 loaves of bread every month?
  • Opinion Article
Public consultation of ANEELRegulatory responsibility and defense of the solar revolution
  • Opinion Article
The energy advantage of Brazilian industry is beginning to reshape its competitiveness.
  • Opinion Article
How do you manage clients with distributed generation (DG) and batteries in a fully open market?
  • Manufacturer's Article
Main mistakes in assembling structures for ground support.
  • Opinion Article
The solar revolution cannot be stopped by the discourse of cross-subsidies.
  • Opinion Article
What can the electricity sector learn from The Devil Wears Prada 2?

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Selection of the stringbox disconnect switch

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Photovoltaic inverter shutdown due to voltage variation
Photovoltaic inverter shutdown due to voltage variation

Voltage variation at the connection point: considerations and precautions when installing photovoltaic inverters

Group A consumers billed as group B
How can Group A consumers be billed as Group B?

Find out which groups of energy consumers are and their differences

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Magazine Canal Solar

Vol. 7, No. 2 – May/2026

Published:28-05-2026

Table of Contents

08. The 2001 blackout turns 25: from the chaos of candles to the challenge of energy transition.

12. Photovoltaic cell manufacturing process

18. Global inequality concentrates renewable energy in a few countries.

20. The silent risk of using AI in the electricity sector: when the customer's bill becomes exposed data.

26. Far beyond supervisory control: the importance of periodic electrical tests in photovoltaic plants.

32. Performance, reliability and technical analysis: five years of CS Consultoria's work in the electrical sector.

36. First BESS (Brazilian Solar Energy Storage Facility) located with a solar power plant inaugurates a new stage of energy storage in Brazil.

40. How electric cars are changing the energy map

44. Solar thermal power is gaining momentum globally and could return to the radar in Brazil.

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Consumer Guide

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Battery for solar system, understand if it is worth installing

Battery for solar system: understand if it is worth installing

Two solar integrators, responsible for managing the process involving the supply and installation of photovoltaic systems.

Solar Integrator Guide: Responsibilities and How to Get Started in the Market

Roof of a house with an installed photovoltaic system, highlighting the importance of solar energy certification to ensure the system functions correctly and connects to the electrical grid.

Solar energy certification: what is it, when and how to do it?

A technician walking between rows of solar panels at a photovoltaic plant, a typical scene for inspections and diagnoses carried out during solar energy consulting services in large-scale projects.

Solar energy consulting: understand the advantages and how it works.

photovoltaic solar panel

Photovoltaic solar panels: choose the best ones in 2026

How to store photovoltaic modules

Photovoltaic modules: a complete guide for consumers

Illustrative image featuring a solar panel, lamp, and calculator, accompanied by the title "How to understand your electricity bill with solar energy," symbolizing savings and the generation of clean energy.

How to understand your electricity bill with solar energy? See tips and examples.

Understanding your electricity bill when using solar energy is important for monitoring the performance of your photovoltaic system.

Aerial image of a solar farm.

Solar farm: what is it and how does it work?

A solar farm is a large-scale facility designed to generate electricity from sunlight.

Solar power plant with rows of photovoltaic panels, showing what large-scale solar energy is and its role in the Brazilian electricity grid.

What is solar energy? See the complete guide on the subject.

The solar energy system is a clean and renewable energy source, easy to install and maintain.

Solar panel and inverter structure of an off-grid system installed on the ground, demonstrating autonomous electricity generation.

Is an off-grid system worth it? Learn how it works and when to use it.

The off-grid photovoltaic system is characterized by self-sustainability and independence from electrical grids

Solar panels capturing sunlight in an on-grid system, demonstrating the generation of photovoltaic energy during the day.

On-grid system: everything about the grid-connected model

Find out everything about the on-grid system and what it is for, here you will find everything about it!

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Solar Energy Projects

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Piauí receives research project on concentrated solar energy and thermal storage.
Piauí receives research project on concentrated solar energy and thermal storage.
Hotel saves R$18 per month with battery storage and solar energy system.
Hotel saves R$18 per month with battery storage and solar energy system.
Brasol expands battery solutions for retail companies.
Brasol expands battery solutions for retail companies.
Canadian Solar's first BESS turnkey project moves forward with SolBank solution.
Canadian Solar's first BESS turnkey project moves forward with SolBank solution.
Caieiras (SP) landfill projects a leap in biomethane production.
Sister Dorothy Settlement to Receive Solar Energy Kits in Rio de Janeiro
Sister Dorothy Settlement to Receive Solar Energy Kits in Rio de Janeiro
TIM will deploy 4G and 5G networks and solar antennas at AXIA hydroelectric plants.
TIM will deploy 4G and 5G networks and solar antennas at AXIA hydroelectric plants.
Public schools in Paraná receive solar energy and modernization.
Public schools in Paraná receive solar energy and modernization.
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Solar Talk Podcast

Solar Talk Podcast

With tags Canal Solar, solar energy, solar energy news

It is a news and information channel about the photovoltaic solar energy sector. Channel content is protected by copyright law. Partial or total reproduction of this website in any medium is prohibited.

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