5 signals that it’s worth modernizing SCADA in your PV farm

Lack of integration with modern tools and systems

One of the first and most visible signs that the SCADA system requires modernization is its limited integration with modern technological solutions.

Today’s PV farms increasingly use artificial intelligence, predictive algorithms, or energy management systems in storage facilities. Old versions of SCADA, designed many years ago, did not anticipate cooperation with such tools. As a result, operators cannot implement new functionalities or must rely on costly workarounds.

Integration gaps also appear when attempting to connect newer devices, such as smart inverters, sensors, or measuring units. If SCADA does not recognize their parameters or is unable to process them correctly, farm management becomes increasingly limited. In practice, this means losing control over part of the installation and risking reduced efficiency of the entire system. Such situations are especially dangerous when the farm is being expanded – an inflexible SCADA then becomes a technological barrier.

Limited data analysis capabilities

Another signal indicating the need for modernization is insufficient data analytics. Older versions of SCADA usually offer only basic reports, limited to current voltage, power, or temperature readings. Meanwhile, modern PV farm operation requires a much deeper insight into the installation’s work history, trend identification, and analysis of non-standard events.

The lack of ability to archive large datasets or process them in real time can cause delays in diagnosing failures. Moreover, older systems often do not allow configuration of custom summaries and reports tailored to the specifics of a given farm. This limits the ability to respond to potential problems and reduces the transparency of the management process.

Frequent failures and high system maintenance costs

As the SCADA system ages technologically, functional limitations increase, but so do maintenance costs. Operators increasingly have to deal with failures that are repetitive and result from hardware wear or outdated software. Repairs can be costly, especially if the manufacturer has ended technical support or spare parts are hard to find. Such failures can halt the operation of the entire farm or parts of it for extended periods. Worse still, their removal requires specialized technicians, who are increasingly difficult to find when it comes to systems implemented a dozen or more years ago. Costs therefore go beyond repairs – they also include production losses and extended response times.

New needs resulting from farm scale or legal regulations

The fourth signal that the SCADA system is lagging behind reality is limitations caused by the farm’s development or changing external requirements. With the expansion of the installation – whether with new panels or additional energy storage systems – comes the need for more efficient supervision of a larger number of devices. Older SCADA systems often cannot handle such data volumes or require impractical modifications.

Changing regulations also affect the type of functionalities SCADA must offer. The accuracy of reporting technical data is gaining importance, particularly in the context of certification, settlements, or cooperation with distribution system operators. In addition, cybersecurity requirements are increasing – modern SCADA systems should enable access control, data encryption, and remote permission management. Such functions are difficult to implement in systems that were not originally designed for them.

Modernization thus becomes not only a matter of convenience but a necessity – if farms want to continue meeting connection agreement conditions, reporting obligations, or insurance requirements.

The SCADA system, although often working correctly despite the passage of years, can limit the development of a PV farm and increase the risk of downtime. Lack of compatibility with new devices, problems with data analysis, failures, and difficulties in meeting current technical requirements are signals that it is worth considering modernization. Modern solutions, such as Nomad NX, allow for better management, greater flexibility, and security, which is why conducting a SCADA system audit can be a profitable step towards more stable and efficient operation.