SCADA vs. Centralized Monitoring: Which is the Best Option for Your Distributed Generation Plant?

With the exponential growth of Distributed Generation (DG) plants in Brazil and worldwide, optimizing and achieving operational efficiency has become a priority. Technologies like SCADA (Supervisory Control and Data Acquisition) and centralized monitoring tools are essential to ensure performance tracking and operational success. But which one is better suited for your operation?

In this article, we will explore the differences, advantages, and limitations of each system, helping you determine which solution makes the most sense for your Distributed Generation plant.

What is SCADA and How Does It Work?

SCADA, or Supervisory Control and Data Acquisition, is a traditional system widely used in the industry for real-time monitoring and control of processes. It collects data directly from field equipment, such as inverters, trackers, and meters, enabling operators to track performance in real-time.

Key SCADA Components:

• Sensors: Capture data (voltage, current, temperature);
• RTUs (Remote Terminal Units): Devices that send information to the system;
• Graphical Interface: Allows data visualization in real-time and remotely.

Strengths:

• Precise real-time control of assets;
• Immediate diagnostics and fast action.

Challenges:

• Scalability: Limited in large or dispersed plants;
• Decision-making: Centralizes data but does not provide the insights needed for quick decision-making or predictive actions;
• Cost: High due to the need for dedicated infrastructure.

According to a study by the Federal University of Technology – Paraná, SCADA systems face integration challenges with new technologies due to legacy hardware and software limitations.

How Does a Centralized Monitoring System Work?

A centralized monitoring tool represents an evolution in plant management, focusing on data analysis, operational efficiency, and automation. Cloud-hosted platforms collect, centralize, and interpret information from various systems, offering a holistic and intelligent view of plant performance.

Key Features:

• Data Integration: Consolidates information from multiple assets and sensors;
• Predictive Analysis: Uses algorithms and artificial intelligence to predict failures and optimize operations;
• Accessibility: Information available on any internet-connected device.

Strengths:

• Intelligent analytics for operational optimization;
• Ability to act preventively, avoiding failures.

Challenges:

• Requires greater initial integration with existing systems;
• The learning curve for operational teams.

Easier Asset Tracking and Proven ROI

Centralized monitoring systems can improve the efficiency of renewable energy plants, reducing operational costs and optimizing generation.

Moreover, advanced data analysis through centralized platforms enables faster problem identification and resolution, increasing efficiency and ROI.

Centralized monitoring software, like Delfos, has proven to be a fundamental tool for companies seeking not only financial sustainability but also environmental responsibility. The use of intelligent platforms directly contributes to reducing carbon emissions by optimizing processes and preventing unnecessary energy losses.

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SCADA vs. Centralized Monitoring: Key Differences

SCADA vs. Centralized Monitoring: How to Choose the Best Solution?

For small-scale plants or isolated projects:

SCADA may be sufficient for monitoring simple, localized operations where scale is limited and direct control of equipment is a priority, provided there is continuous daily monitoring of generated data.

For medium to large-scale plants or operations across multiple locations aiming for growth:

Centralized monitoring software is more suitable because it can integrate data from various systems and optimize operations through predictive analytics.

The Role of Artificial Intelligence in Distributed Generation Plant Performance

The future of DG plants lies in integrating technologies like AI and Big Data, which form the backbone of centralized monitoring software such as Delfos. While SCADA still plays an important role, it has limitations in:

• Identifying failures before they occur (predictive maintenance);
• Generating automated reports for decision-making;
• Adapting to different scales and simultaneous operation locations.

Through predictive analysis, a centralized monitoring tool transforms raw data into actionable insights, enabling not only problem correction but also prevention, avoiding energy and financial losses.

Additionally, emerging technologies like digital twins are gaining traction, enabling realistic simulations of plant performance. This allows for precise failure scenario predictions and maintenance planning.

Another significant factor is the impact of AI integration on operational team training. According to research by the International Energy Agency (IEA), AI-driven systems feature more intuitive interfaces, accelerating learning and reducing human errors in daily management.

What Is the Best System for Your DG Plant?

Depending on your operation's size, complexity, and needs, you will choose between SCADA software and a centralized monitoring tool.

At Delfos, we have developed a plan for those looking to maximize the performance of their DG plant while relying solely on SCADA and/or inverter portals to monitor asset performance.

If your operation still uses only SCADA and seeks to evolve, integrating an intelligent monitoring platform can be the next step to improving efficiency and ensuring peak production.

Want to learn how Delfos software centralizes data and optimizes your operation? Contact our experts or click here to schedule a demo with our commercial and technical team. Discover how our clients are maximizing ROI, optimizing analysis time, and how your company can also become a success story.

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