TECHNICAL INSIGHTS30/09/2026

Emergency Lighting: It Must Work at the Critical Moment

Emergency lighting is part of the infrastructure that is activated when the normal power supply is unavailable. Its purpose is not to replace normal lighting, but to support safe evacuation, the identification of exits and signs and, depending on the application, the safe completion of critical activities.

The critical factor is the availability of backup power

The presence of emergency lighting fixtures alone is not sufficient. The alternative energy source must be designed for the required load and operating duration, properly protected and capable of being tested periodically. ELOT EN 50171 defines general requirements for central power supply systems using batteries as an alternative power source and intended, among other applications, for escape lighting in the event of loss of the normal supply.

Central power supply with CSS

Riello UPS offers the CSS Sentryum range, designed in compliance with EN 50171 for the central power supply of safety and emergency systems. The centralised architecture enables consolidated management of the backup source and facilitates periodic verification of operation and autonomy, provided, of course, that the overall system has been designed and installed in accordance with the project requirements.

Critical power system installation
Uninterruptible power supply equipment

Periodic testing is part of reliability

A safety system must be known to be operational before it is required in a real event. Periodic inspections, battery condition, autonomy verification and proper documentation of the installation are therefore essential elements of operational reliability.

The value lies not simply in installing another power system. It lies in knowing that the backup supply for the emergency lighting has been designed for the specific application, can be tested in a structured manner and remains operationally ready when required in a real emergency.

Case Studies & Insights

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What Should Be Checked Before a Critical Power System Is Handed Over?
TECHNICAL INSIGHTS
15/10/2026

What Should Be Checked Before a Critical Power System Is Handed Over?

Completing the installation of a UPS is not the same as completing the project. Before the system enters normal operation, it must be confirmed that it has been installed correctly, that its operating parameters correspond to the design and that its basic protection functions have been tested. This is the essence of commissioning: putting the system into operation and verifying its behaviour against the project requirements.
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UPS and Energy Storage: Where They Converge – and Where They Do Not
TECHNICAL INSIGHTS
15/10/2026

UPS and Energy Storage: Where They Converge – and Where They Do Not

The growing adoption of energy storage systems often creates the impression that a BESS and a UPS are variations of the same technology. They do indeed share certain elements — batteries, power electronics, converters and control systems. The fundamental difference, however, lies in the function for which each system is designed.
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Emergency Lighting: It Must Work at the Critical Moment
TECHNICAL INSIGHTS
15/10/2026

Emergency Lighting: It Must Work at the Critical Moment

Emergency lighting is part of the infrastructure that is activated when the normal power supply is unavailable. Its purpose is not to replace normal lighting, but to support safe evacuation, the identification of exits and signs and, depending on the application, the safe completion of critical activities.
Read more

Press Releases

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28/9/2026

Partnership with ION

Partnership with ION
ACE Power Electronics has successfully completed the supply and technical installation of Riello UPS uninterruptible power supply systems at ION’s new wafer production plant in Arta, ensuring continuous and uninterrupted operation of the production process. More specifically, as part of the project, ACE Power Electronics installed UPS systems with a total capacity of 220 kVA, delivering high performance, increased reliability and maximum availability even under demanding industrial operating conditions. The equipment incorporates On Line double-conversion technology, energy efficiency of up to 96.5%, high overload capability, zero impact on the grid, advanced communication capabilities and easy monitoring through modern displays and status indicators. As Dimitris Vlachos, General Manager of ACE, stated: “The completion of this project at ION’s new factory highlights ACE Power Electronics’ expertise and reliability in critical industrial installations. We are proud to have been providing uninterruptible power solutions for 35 years, helping ensure uninterrupted production and operational security for our industrial customers.”
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29/9/2026

Partnership with ATHINAION Cinemas

Partnership with ATHINAION Cinemas
ACE Power Electronics has successfully completed the supply and installation of a Riello Sentryum Active 20 kVA uninterruptible power supply (UPS) system at ATHINAION Cinemas, strengthening the reliability and availability of the facilities’ critical electrical and technological infrastructure. In a modern cinema environment, the continuous operation of projection systems, network infrastructure, automation systems and other supporting applications is a fundamental requirement for uninterrupted customer service and the smooth running of screenings. Protection against interruptions or fluctuations in the electrical power supply is critical to ensuring the operational continuity of the facilities. The installed solution is based on the Riello Sentryum Active 20 kVA (S3T 20 ACT), an advanced online double-conversion UPS designed for applications requiring high power quality, maximum reliability and increased energy efficiency. The system ensures stable and uninterrupted power supply, protecting sensitive equipment from outages, voltage sags and electrical disturbances. ACE Power Electronics was responsible for the supply, technical installation support and commissioning of the system, ensuring its smooth integration into the cinemas’ existing infrastructure. As Dimitris Vlachos, General Manager of ACE Power Electronics, stated: “The uninterrupted operation of critical systems is a key factor in delivering high-quality services and ensuring the best possible visitor experience. Through our partnership with ATHINAION Cinemas, we contribute to strengthening the reliability of their infrastructure by providing a modern power protection solution that meets the requirements of their day-to-day operations.”
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29/9/2026

Award at the 2nd ICAP CRIF ESG Summit

Award at the 2nd ICAP CRIF ESG Summit
ACE Power Electronics received an award at the 2nd ESG Summit organised by ICAP CRIF, one of the significant events focusing on sustainable development and the integration of ESG principles into corporate strategy. More specifically, the award follows the company’s recent achievement of receiving an “A – High” ESG rating from ICAP CRIF under the Synesgy methodology. The assessment confirms the company’s consistent commitment to Environmental, Social & Governance (ESG) principles and reflects its overall strategy for sustainable growth, transparency and responsible operations, as well as its continuous investment in policies and systems that strengthen corporate governance and long-term value. ACE Power Electronics was represented at the 2nd ESG Summit by Christos Raftopoulos, Member of the company’s Board of Directors, and Dimitris Vlachos, General Manager. The award was accepted on behalf of ACE by Christos Raftopoulos, who stated: “ACE Power Electronics’ participation and recognition at the ESG Summit further strengthen its position as a reliable partner in the field of dependable energy solutions and as an organisation that meaningfully integrates sustainability principles into its operations and strategy.”
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