With the advancement of energy storage technologies in Brazil, whether in hybrid projects with photovoltaic generation or in facilities dedicated exclusively to battery banks, companies operating in this segment have adopted increasingly efficient practices in safety, sizing, installation, operation, and maintenance.
According to TTS Energia — a company specializing in the engineering and construction of solar plants and sustainable solutions — some of the main factors that determine the efficiency of storage projects, whether in homes or in industrial, commercial, and rural developments, include:
- Correct sizing of the system;
- Economic feasibility analysis;
- The use of solar self-consumption;
- The implementation of continuous monitoring systems;
- The careful selection of equipment and the clear definition of the installation objectives, such as reducing energy costs,
- Providing backup power for critical loads and increasing autonomy.
"Energy storage projects require technical precision and constant monitoring. Success lies in combining quality engineering, appropriate technology, and a dedicated after-sales service. This is what ensures the systems' performance, profitability, safety, and longevity," emphasizes Jacques Hulshof, CEO of TTS Energia.
Check out some of the best practices recommended by TTS Energia for installing battery systems below.
1-) Technical dimensioning: the starting point for a successful project
The sizing of a system with BESS must begin with a detailed analysis of the customer's load, based on mass memory data with readings every 15 minutes, in addition to defining the desired operating regime – such as backup, peak shaving ou load shift.
This analysis allows the storage capacity (kWh) and the power of the BESS (kW) to be correctly calculated based on the desired autonomy and the depth of discharge of the batteries, ensuring performance and safety.
2) Recommendations for the end customer
The success of a hybrid project depends largely on the client's thorough understanding of their needs and objectives. The company recommends analyzing the consumption profile, identifying peak times and demand patterns, and clearly defining the system's objectives, such as reducing energy costs, providing backup power for critical loads, or increasing autonomy and solar self-consumption.
It is also necessary to carry out an economic feasibility analysis, considering initial investment (CAPEX), operational costs, maintenance and return on investment (ROI), as well as choosing a qualified supplier, with proven experience in projects that integrate solar generation and storage, a robust portfolio and structured after-sales support.
3) Recommendations for suppliers and integrators
BESS projects require a higher level of technical expertise than conventional photovoltaic systems. To ensure system performance and longevity, the supplier must have a qualified and specialized technical team and conduct a thorough analysis of the customer's consumption profile, using mass storage data and considering their specific objectives.
Furthermore, one must master the available technologies and equipment, knowing the characteristics, advantages and limitations of different types of batteries, inverters and management systems (BMS and EMS).
Current regulations and applicable technical standards for energy safety and efficiency must be followed. These practices ensure that each project delivers maximum operational efficiency and safety, avoiding failures and guaranteeing the best cost-benefit.
4) Choosing equipment: a decisive step
The selection of solar equipment, batteries, and inverters must be made with rigorous technical criteria. The wrong choice can impact the system's performance and lifespan, generating risks such as poor performance, equipment damage, and even accidents due to battery overheating.
5) Monitoring and maintenance: pillars of safety and profitability
Proper monitoring and maintenance are essential to ensure safety and economic return on investment.
A hybrid system must be constantly monitored, with real-time monitoring of variables such as photovoltaic generation, battery charge status (voltage, current and temperature), load consumption and energy flow between panels, batteries, grid and consumer unit.
6) Maintenance programs:
Preventative maintenance should include periodic inspections, panel cleaning, connection checks, software updates, and battery checks. Corrective maintenance, when necessary, should be initiated quickly through remote monitoring to reduce downtime and avoid financial losses.
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