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Technical Article

BESS maintenance: what to inspect?

Following the manufacturer's recommendations is essential to preserve the warranty and operational safety of the equipment.

BESS maintenance: what to inspect?

Photo: Freepik

Article published in Magazine Canal Solar – Vol. 7, No. 1, February/2026

Currently, little is said about how BESS maintenance is performed and what the main actions involved in this process are. However, this point can be crucial in negotiating the sale of the equipment, considering that the argument of lower maintenance needs is one of the most used (after the price of diesel), when compared to a diesel generator as a competing solution.

Furthermore, the customer may inquire about the maintenance costs throughout the operation to ensure they don't incur unexpected expenses along the way. On the other hand, performing equipment maintenance according to the manufacturer's recommendations is crucial for maintaining the warranty and avoiding future problems.

In this sense, talking about the maintenance of a BESS It is essential to ensure a reliable rate of return on investment, avoiding high unexpected expenses and warranty rejections by the manufacturer.

Before addressing the inspection, it is necessary to understand the main components of a BESS and their respective functions, in order to correctly identify what should be inspected and how each component should operate.

Read the full article in the complete issue of the magazine. Click here to download.

The opinions and information expressed are the sole responsibility of the author and do not necessarily represent the official position of the author. Canal Solar.

Lais Andrade
About the Author
Lais Andrade

Engineer on the technical team at CS Consultoria. She teaches courses on energy storage and power plants, and is also a speaker and author of technical content for the platform. An electrical engineer graduated from USJT, she has over four years of experience in the photovoltaic sector, working in technical support, product management, commissioning testing, performance analysis, and project development. She specializes in photovoltaic modules and battery storage systems.

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