Grid compliance · Germany
Schleswig-Holstein Netz: telecontrol connection for PV and battery storage
Schleswig-Holstein Netz (SH Netz), part of the HanseWerk group, operates the distribution grid in Germany's most wind-rich state. Curtailment here is frequent and heavy, so gradient-compliant setpoint execution is a must. From 100 to 500 kW we connect over the E.ON Modbus TCP profile.
Schleswig-Holstein Netz at a glance
SH Netz supplies large parts of Schleswig-Holstein and belongs to the HanseWerk group within the E.ON family, headquartered in Rendsburg. Relative to its size, no other state feeds in as much wind power. The grid regularly reaches its limits, so grid-security management steers frequently.
For plant operators this means: the change in active power must happen quickly, but in a controlled way. SH Netz follows the closely related E.ON requirements for the telecontrol connection to the medium-voltage grid, including the required ramp rates.
Profile
- Grid area
- Schleswig-Holstein
- Headquarters
- Rendsburg
- Group
- HanseWerk · E.ON
- Profiles
- E.ON Modbus TCP
Your connection at SH Netz
For plants from 100 to 500 kW we connect SH Netz over the common E.ON Modbus TCP profile. From around 100 kW, SH Netz requires a telecontrol connection and participation in Redispatch 2.0.
E.ON Modbus TCP profile
Connection over the Gateway Light with the E.ON Modbus TCP profile, which is identical across the E.ON grid. The EMS provides the Modbus TCP server, receives the grid-security setpoint in steps and reports voltage, active and reactive power back.
- Modbus TCP, E.ON profile (Gateway Light)
- Setpoint in steps, measurement feedback
- The same profile at all five E.ON grid operators
Controlled curtailment: on a setpoint change, active power is tracked as quickly as possible, with the required ramp rates per VDE-AR-N 4110. The EMS holds the last valid setpoint on loss of connection and keeps optimising on the market afterwards.
Why Voltmasters
Robust in the windiest grid
Where curtailment is frequent and heavy, the control logic has to hold up. Our stack executes setpoints gradient-compliant and reports the state back reliably. The telecontrol function is integrated into the Voltmaster Controller; we support commissioning with SH Netz.
Connecting a plant in the SH-Netz grid?
Tell us the connection power and the voltage level. We determine the right connection and support the signal test with Schleswig-Holstein Netz.
FAQ
Frequently asked questions about Schleswig-Holstein Netz
Does SH Netz belong to the E.ON group?
Yes. Schleswig-Holstein Netz belongs to the HanseWerk group, which is part of the E.ON family. So the common E.ON Modbus TCP profile applies here too from 100 to 500 kW.
Which telecontrol protocol does SH Netz use?
From 100 to 500 kW the connection is over the E.ON Modbus TCP profile at the Gateway Light, per the SH-Netz grid guideline for the telecontrol connection to the medium-voltage grid.
Why is the ramp-rate requirement so important in the SH grid?
Schleswig-Holstein is the most wind-rich state, so grid-security management intervenes often. Active power must be tracked quickly but in a controlled way on a setpoint change, with the required ramp rates per VDE-AR-N 4110. That is exactly what our control logic delivers.
Does Voltmasters support the SH grid today?
In the 100 to 500 kW range, yes, over the common E.ON Modbus TCP profile. It builds on our stack proven at Westnetz and in Belgium.
Sources
Official sources and standards
This page is based on the grid operator and standards documents below. Always check the most recent version at the publisher.
Looking for the technical details and step-by-step configuration? You will find them in our documentation.
Read the documentationReady to make your first project pay off?
Tell us about your next installation. We will show you the platform, help you build the business case and guide you from first quote to certification.