LVRSys® - Low-Voltage Regulation
Solve Voltage Stability Problems in the LV-Grid Due to PV, E-Mobility & Heatpumps
Low voltage regulation helps keep voltage stable in low-voltage grids with rising PV feed-in, EV charging and heat pump loads. LVRSys® is installed where voltage deviations actually occur and can regulate locally instead of requiring immediate grid expansion. This makes it a practical solution for utilities, industrial sites and weak feeders that need fast, scalable voltage stabilisation.
LVRSys® - the Cost and Time Efficient Alternative to Line/Grid Expansion
Cost and Time Efficient, Easy to Install, Flexible & Low/No-Maintenance
Application Areas
LVRSys®
Low Voltage Regulation
A Building Block of the Future
The »LVRSys® – Low-Voltage Regulation System« was developed to solve voltage stability problems in the low-voltage grid due to the integration of photovoltaics, electromobility and heat pumps. It represents an economical and flexible alternative to costly and time-consuming line extensions.
The voltage stability problems could be local (individual lines) or affect the entire low-voltage grid. LVRSys® can be used flexibly as a line regulator or regulate directly at the local transformer station (or secondary substation).
Presentation Flyer »LVRSys®«
Get to know the LVRSys-Low-Voltage Regulation System at a glance.
FAQ - Frequently Asked Questions
What is low voltage regulation?
Low voltage regulation is the controlled stabilisation of voltage in low-voltage networks. It helps keep customer voltage within the permissible range even when feed-in and load conditions change.
When is a low voltage regulator needed?
A low voltage regulator is useful when PV systems, EV charging, heat pumps or long feeders cause recurring overvoltage or undervoltage in specific sections of the low-voltage grid.
How does LVRSys® work?
LVRSys® regulates voltage locally in the affected feeder section. Instead of acting only centrally, it is installed where the voltage problem actually occurs and compensates deviations directly in the grid.
Where can LVRSys® be installed?
LVRSys® can be installed in low-voltage feeders, near critical line sections or at the local transformer station / secondary substation, depending on the grid situation and regulation objective.
What problems can low voltage regulation solve?
Low voltage regulation helps solve local overvoltage, undervoltage, voltage drops in long feeders and voltage deviations caused by decentralised generation or new electrical loads.
Is LVRSys® an alternative to grid expansion?
Yes. In many cases, LVRSys® is a practical and economical alternative when operators need to stabilise voltage quickly without immediately expanding cables or reinforcing the grid.
Which applications are typical for LVRSys®?
Typical applications include residential areas with high PV penetration, feeder sections with EV charging and heat pumps, industrial facilities and rural networks with weak voltage conditions.
What is the benefit for utilities and network operators?
Utilities and network operators gain a flexible way to improve voltage quality, reduce complaint risks, support additional electrification and postpone or minimise expensive grid reinforcement.
News From the Product Group
LVRSys® - News
Blogpost
A. Eberle and Bregal Unternehmerkapital enter into a growth partnership
14. April 2026
A. Eberle and Bregal enter into a growth partnership. The partnership with BU is intended to accelerate A. Eberle’s international expansion, innovation and technological advancement.[...]
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Webinar
»LVRSys®« Webinar: The Solution for Voltage Stability Problems - Integrate PV, Electromobility & Heat Pumps
19. March 2026
Webinar recording from 2026-03-19: »LVRSys®The Solution for Voltage Stability Problems - Integrate PV, Electromobility & Heat Pumps[...]
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Special Publication
Low-Voltage Line Voltage Regulators for Stable Low-Voltage Grids | Practical example: »LVRSys®« at »ovag Netz GmbH«
19. December 2025
A distribution voltage regulator stabilizes LV feeders locally where PV and load peaks cause deviations. This practical example from ovag Netz shows how LVRSys® supports fast, measurable voltage control[...]
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Special Publication
LVRSys® Voltage Regulation in Low-Voltage Networks - Solving Pv-Related Overvoltage Issues
4. December 2025
The LVRSys® low voltage regulation system stabilizes voltage in PV-dominated low-voltage networks, preventing EN 50160 violations and avoiding expensive grid reinforcement.[...]
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Webinar
»Cyber Security« Webinar: A Challenge for European Energy Companies
3. December 2025
Webinar recording from 2025-11-26: »Cyber Security« - A Challenge for European Energy Companies[...]
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Blogpost
A. Eberle at the Schwabach City Run 2025
24. November 2025
A. Eberle was represented by 37 participants at the 2025 Schwabach City Run, setting a new internal record for participation. Particularly noteworthy is Benjamin Rentsch's first place in the M 35 40 age[...]
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Special Publication
LVRSys®: It's All About the Right Voltage
7. August 2025
Summary Stable voltage quality is becoming increasingly important in modern distribution grids. Due to the growing feed-in of renewable energies […][...]
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General Knowledge
Power in Multiphase Systems
7. August 2025
This technical report highlights the special features of power transmission in three-phase systems and offers valuable insights into the optimisation and analysis of modern power grids.[...]
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Blogpost
Visit From the Rudolf Diesel Technical School at A. Eberle
15. July 2025
We were happy to welcome you, Rudolf-Diesel-Fachschule! Yesterday, we had the pleasure of welcoming two classes of future electrical engineering technicians from the Rudolf-Diesel-Fachschule Nürnberg[...]
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Blogpost
TOP 100 Awards 2025: Innovation for the Energy Future
15. July 2025
💡 As part of the TOP 100 Awards 2025, we were honored to receive a special recognition last week in Mainz – personally presented by TV host and science journalist Ranga Yogeshwar.[...]
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Blogpost
University Excursion: Pentecost Excursion of the Friedrich-Alexander-University Erlangen-Nuremberg (FAU)
14. July 2025
As a company dedicated to innovation, education, and the energy transition, we are pleased to have once again supported the Whitsun excursion of Friedrich-Alexander University Erlangen-Nuremberg (FAU)[...]
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Blogpost
Further Growth at A. Eberle
14. July 2025
Welcome to the team! We welcome our new colleagues at A. Eberle.[...]
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General Knowledge
Voltage Stabilisation
7. July 2025
In this article, you will learn why voltage stabilisation in high, medium and low-voltage grids plays a central role in safe and efficient grid operation. You will learn the basics of ‘voltage stabilisation’[...]
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Webinar
»LVRSys®« Webinar: The Solution for Voltage Stability Problems
29. April 2025
Webinar recording from 2025-03-19: »LVRSys® - The Solution for Voltage Stability Problems«. [...]
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Special Publication
Renewable Energy Solutions (RES) - Pilot Project in South Africa for Efficient Voltage Stabilisation With »LVRSys®«
11. April 2025
This application report shows the successful use of the »LVRSys®« low voltage regulation system in the Siemens data centre in Midrand, South Africa. Read here how »LVRSys®« reliably stabilises the[...]
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Blogpost
First »LVRSys® - Low-Voltage Regulation« System in South Africa
2. April 2025
We are excited to share another milestone in grid stability and energy efficiency: the first »LVRSys®« - low-voltage regulation system in south africa has been successfully commissioned![...]
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General Knowledge
Measuring the Voltage Drop
23. January 2025
The voltage drop is the difference between the voltage at the beginning and end of an electrical line. In an electrical network, the voltage can be reduced by the resistance and impedance of the lines,[...]
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Blogpost
International Partner Week 2024 - a Look Back
29. August 2024
Our International Partner Week 2024 - many old friends and new faces were our guests, it was a pleasure.[...]
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General Knowledge
Voltage Stability
26. August 2024
Where and why does voltage stability play such an important role today? What are the current and future challenges? And what methods are there for voltage stability in the low-voltage grid? We answer the[...]
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Blogpost
»LVRSys®« Low-Voltage Regulate: Info Day With Live Demonstration in Nuremberg
5. August 2024
This week, the Chair of Electrical Energy Systems at FAU Erlangen-Nuremberg visited our Info Day in Nuremberg together with many interested participants. The highlight was the live demonstration of the[...]
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