Intelligent network solutions
for continuous energy supply
Revolutionary technologies that stabilize electrical grids and optimize the use of renewable energy
The operation of low voltage distribution networks is increasingly challenged by the rapid proliferation of solar systems and the continuously growing demand. These networks were originally not designed for bidirectional energy flow and to handle dynamically changing loads, which leads to voltage issues, inverter disconnections, and increased operational costs.
With our solutions, utility companies and network operators can dynamically and automatically control low voltage networks. Our system is based on smart OLTC transformers, intelligent voltage regulators, and smart switchboards, which together ensure stable voltage levels and continuous energy supply.
The system not only provides solutions for current network problems but also offers real-time data collection, which supports network development decisions, as well as the targeted identification and management of critical network points.
Based on our analyses, by applying our solutions, up to 15% efficiency improvement can be achieved in the operation of low voltage networks. This improvement is attributed to more accurate voltage regulation, the reduction of network losses, and automated operation requiring less on-site intervention.
Energrid
innovative solutions
Smart OLTC
transformers (SOLTC™)
stable voltage even with high solar penetration
fewer voltage complaints and inverter disconnection
reduced operating costs
faster response to network state changes
The smart OLTC (On Load Tap-Changer) transformers are capable of changing voltage levels even under load, thus allowing regulation to occur without interruption, providing continuous energy supply to consumers.
Compared to traditional solutions, the Smart OLTC system we developed is based on real-time measurements and local decision-making, allowing it to automatically respond to voltage fluctuations caused by solar production and consumption. The regulation can be monitored remotely, eliminating the need for on-site visits for every intervention.
Smart
Voltage Regulator (SVR™)
per-phase voltage regulation
stable network operation even on long branches
reduction in manual intervention
improved quiality-of-supply
On longer network sections, it often occurs that significant voltage differences arise on individual phases. Smart Voltage Regulators allow for local, per-phase intervention, where the network conditions justify it.
The SVR™s operate in conjunction with smart OLTC transformers and intervene after continuous analysis of the local network state. This ensures that the regulation is always targeted and effective.
Smart
Switchboards (SSB™)
per-phase, selective opening and closing
LVA functions for low voltage networks
quick and targeted troubleshooting
reduced SAIDI and SAIFI
fewer call-outs
more comprehensive network visibility
The smart switchboards replace traditional fuse boxes with remotely controllable, intelligent circuit breakers that offer significantly more functions than traditional protection devices.
The SSB™ also features Low Voltage Automation (LVA), enabling not only fault isolation but also the execution of automated reconnection processes. In the event of a failure, the system disconnects phase by phase and then automatically reconnects after a pre-set time—such as 1 minute—if the fault has cleared.
This slow reconnection automation effectively manages transient faults, reduces unnecessary power outages, and significantly mitigates the need for on-site interventions. If the fault persists, the affected phase remains disconnected, and the operator is notified.
The SSB™ is able to distinguish between overload and short circuit and provides accurate diagnostic data about the location and nature of the fault.
Low-voltage
Grid Automation System
Smart OLTC transformers, smart voltage regulators and smart switchboards operate as a unified system that enables the automated, data-driven operation of low-voltage networks.
The system's current central SCADA solution under development supports network monitoring and operational decision-making with real measurement data.
