A fault no one sees is the one that costs the most!

Why eCON+ quickly pays for itself

Twenty years ago, a mains decoupling panel had one essential function: to safely disconnect a decentral energy production installation as soon as the voltage or frequency moved outside the permitted limits. It still performs that task today, but the installation behind that grid disconnection has changed fundamentally. Solar parks are being combined with battery storage, energy management systems (EMS), combined heat and power units and remote control. Available power levels are increasing, grid codes are becoming stricter and downtime has an ever greater financial impact.

According to Peter De Ras, engineer at EME and developer of eCON+, this evolution calls for a different view of mains decoupling.

The energy transition places new demands on mains decoupling panels

“A classic mains decoupling panel does exactly what it was designed to do. But today the expectations of installers and operators are much higher today,” Peter explains. “They want to know what is happening, why an installation switches off and how it can be brought back into operation as quickly as possible.” That is why he developed eCON+: an intelligent mains decoupling solution that combines the statutory Synergrid functionalities with monitoring, diagnostics and data processing.

A fault only starts costing money when no one knows why it happened

An installation that switches off safely is rarely the biggest problem. The real cost arises when no one notices that it is down, or when it takes days to identify the cause. “Sometimes installations fail and remain in fault for a week or even a month without the owner knowing. That means no yield for all that time,” Peter says. “When a technician is eventually called in, the search begins. Was it an abnormal grid voltage? A problem with the inverter? A faulty connection? Without historical data or context, the analysis is largely based on experience and elimination. And that is exactly where we want eCON+ to make the difference.”

From error message to diagnosis

A classic mains decoupling system tells you that the installation has been switched off. eCON+ also shows you why. The platform stores events, alarms and measurement data in chronological order and places them in the right context. Instead of a series of separate error messages, the installer receives a reconstruction of the full event. In doing so, eCON+ distinguishes between the actual cause of a fault and its consequences. Alarms are logically grouped, so as an installer you no longer have to interpret dozens of messages to reach the same conclusion.

“It is no longer a matter of guesswork. You receive objective information about what happened. That makes a huge difference when you need to analyse a fault.”

Peter De Ras — engineer at EME

From reactive to proactive work

eCON+ continuously records voltages, currents, frequencies and power values and converts them into clear graphs and timelines. As a result, you not only see what happened at a specific moment, but also how the installation behaved beforehand.

That historical context helps technicians to recognise patterns. Small voltage fluctuations, recurring deviations or changing load profiles become visible before they cause a fault. This shifts the focus from reactive to proactive work, from solving problems to preventing them.

Responding intelligently to the energy market

The available data not only helps analyse faults, it also helps control energy installations more intelligently. A good example is the increasingly common occurrence of negative electricity prices. When more electricity is produced than consumed, injecting energy into the grid can become financially disadvantageous. “eCON+ can automatically respond to negative electricity prices and help avoid unnecessary feed-in costs,” Peter explains. “That also illustrates how the role of a mains decoupling panel is changing. It is no longer limited to protection, but also helps optimise the economic performance of an installation.”

A successful intervention starts on the screen

Because eCON+ makes all relevant information available anywhere, technicians can analyse the situation before leaving for the installation. Is an intervention necessary? Which component deserves attention? Which material should you bring? This significantly increases the chances of an effective solution.

Collaboration also becomes more efficient: the installer, the operator and the specialists at EME all have access to the same objective information. This eliminates discussions based on assumptions and allows them to decide more quickly which action is needed. For organisations that manage dozens of installations, this translates into a more efficient service organisation. Thanks to online monitoring, a technician does not have to go on site immediately for every notification. In many cases, a remote analysis is enough to identify the cause or prepare the right intervention.

Developed from practical experience

What stands out is that eCON+ did not originate from a list of technical specifications, but from daily reality. “I asked myself: what are installers struggling with today?” Peter says. “What information do they need to work faster and better?”

That starting point explains why EME chose one modular standard platform instead of developing a tailor-made solution. The platform is widely applicable, easy to configure and ready to evolve along with new grid codes and future extensions.

Because all mains decoupling panels are built according to the same platform, installers do not have to learn a different working method or software every time. At the same time, the hardware remains standardised, which keeps delivery times short and maintenance simpler. For installers, this means less engineering, less complexity and more uniformity across different projects.

An investment that keeps paying off

Where traditional mains decoupling reacts when something goes wrong, eCON+ helps installers understand problems faster, solve them more efficiently and even prevent them. In this way, the mains decoupling panel evolves from a protection component into an intelligent partner in the management of modern energy installations. Or, as Peter summarises it: “We developed eCON+ based on the question of what installers really need today. Not only to keep an installation operating safely, but also to manage it more intelligently and with a higher return.”