GoodWeek brings strategic insights for integrators on storage and security in PV systems

GoodWeek 2025, held on March 20, brought together renowned experts to discuss the advances, challenges and perspectives of the energy storage sector in Brazil.

The online event brought valuable insights into solutions applied to the agro-industrial market, regulatory developments and technological innovations aimed at energy safety and efficiency.

Growth of solutions in agriculture and industry: the advancement of microgrids

Merivaldo Brito, technical and commercial director of MTR BESS, presented integrated solutions for the use of storage systems in agricultural and industrial environments at GoodWeek, highlighting the role of microgrids as an alternative for regions with low quality or no electricity supply. According to him, areas of Brazil remain without power for more than 68 hours per year, directly affecting productivity.

MTR BESS offers an end-to-end project, ranging from the supply of equipment and parameterization to the operation and maintenance of systems.

Brito showed that, with the adoption of microgrids in irrigation systems, it is possible to obtain significant gains in productivity and financial return. In one example, the profit from irrigation in bean crops was R$587 thousand higher than the scenario without irrigation.

The technology also has a strong impact on controlling diesel costs and reducing emissions, promoting energy autonomy and sustainability in the field.

Storage overview in Brazil: opportunities and bottlenecks

Marcio Takata, director of greener, highlighted that Brazil already has 685 MWh of installed capacity in storage systems, 70% of which are dedicated to isolated systems. The sector is advancing rapidly, especially in commercial, industrial and agricultural applications, with a focus on reducing consumption during peak hours, energy reliability and support for the electrical system.

The main drivers for adopting BESS (Battery Energy Storage Systems) include: power outages, grid instability and high costs with contracted demand. The evolution of intermittent sources, such as solar and wind, also increases the need for flexible and intelligent systems.

Takata warned about the challenges of the so-called “duck curves”, which show the mismatch between generation and demand throughout the day, especially in the Southeast and Central-West regions.

He reinforced that the low availability of power in agricultural areas can limit the expansion of irrigation, and storage is a key tool to overcome this bottleneck.

Safety in PV installations: new standards and solutions

Representing GoodWe, Alexandre Pereira, Solutions Manager for South America, addressed innovations aimed at safety in photovoltaic systems, especially in view of the risks of electric arcs in direct current (DC).

According to him, these incidents, often caused by connection failures or poor installation, are responsible for large-scale fires in photovoltaic plants.

Pereira emphasized the recent publication of the standard ABNT NBR 17193: 2025, which establishes the mandatory use of AFCI (arc fault interruption system) and FDR (rapid shutdown function) in buildings, their envelopes and associated risk areas, regardless of their use (residential, commercial, industrial, whether public or private).

He also presented at GoodWeek GoodWe's RSD 2.0 devices, which operate in less than 7 seconds and reduce the voltage of the modules to safe levels, ensuring protection for people and property.

In addition to the national standard, several states have already adopted local regulations. The manager emphasized that GoodWe is ready to meet both Brazilian requirements and international standards, such as NEC 690.12 in the United States.

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