Question 1

What ist REGIOlink?

Accepted Answer

REGIOlink is our operating and grid connection concept for the regional, grid-supportive integration of large-scale battery storage.Battery storage systems are often criticized for responding solely to national market price signals without taking local grid conditions into account.This is where REGIOlink comes in:
We analyze the specific grid conditions on site, model available flexibility, and work together with the grid operator to develop a coordinated operating strategy. This includes an individually tailored Flexible Connection Agreement (FCA) — ranging from highly dynamic to predefined models.

REGIOlink demonstrates that battery storage can be operated economically while simultaneously making an active contribution to grid stability.

Question 2

What is the purpose of REGIOlink?

Accepted Answer

REGIOlink creates the foundation for an economically viable and simultaneously grid-supportive storage operation.The objective is to integrate battery storage systems into each respective grid area not as an additional burden, but as a source of flexibility.For grid operators, this means:Greater predictabilityTransparent operating logicReduced integration uncertaintyIndividually tailored connection solutionsREGIOlink connects market mechanisms with regional grid requirements.

Question 3

Who can use REGIOlink?

Accepted Answer

REGIOlink is designed for distribution system operators and grid operators who aim to integrate battery storage in a structured, predictable and grid-supportive manner.The concept is flexibly scalable:For larger, digitalized grid areas with dynamic interfacesAs well as for smaller grid areas using standardized FCA modelsREGIOlink is not an off-the-shelf product, but a partnership-based integration approach.

Question 4

How does REGIOlink work?

Accepted Answer

REGIOlink is built on four core components:Grid Analyses and Flexibility CalculationsAnalysis of historical feed-in and load data, identification of critical time windows, and modeling of realistic operating cases.Tailored FCA ModelsDevelopment of an appropriate Flexible Connection Agreement — dynamic, partially dynamic, or standardized — aligned with grid structure and level of digitalization.Operational Experience from Live OperationUse of real operating data from existing projects to validate and continuously optimize the models.Scientific FoundationStudies, modeling and system-level analyses as the basis for well-founded decision-making.The result is a clearly defined, contractually and technically aligned framework for predictable and reliable storage integration.

Question 5

Which FCA models does REGIOlink offer?

Accepted Answer

Our REGIOlink FCA portfolio includes:REGIOlink DynamicFor digitalized grids with real-time or rule-based power control.REGIOlink SunFor PV-dominated grid areas characterized by typical midday surpluses.REGIOlink WindFor wind-driven grid structures with high volatility.REGIOlink IndustryFor industry-dominated grids with high baseload demand and load peaks.Grid congestion profiles can vary significantly from one region to another, as both generation structures and load profiles can differ substantially. This is precisely why REGIOlink takes a tailored approach, adapting battery storage operation to the specific grid situation.In solar- and wind-dominated regions, grids are often characterized by high and sometimes highly volatile renewable generation. Photovoltaic generation typically results in pronounced feed-in peaks around midday, while high levels of wind generation can lead to sustained periods of high feed-in. Conversely, periods of low wind generation can result in peaks in net load, in some cases lasting for several days.Industrial regions, by contrast, are often characterized by high electricity demand — and in very different ways. Large industrial consumers frequently create relatively stable and continuous demand for electricity on working days. In such grids, additional generation capacity can often be integrated more easily. Depending on the industry, we see a wide range of load profiles — from a stable industrial baseload and clear weekday patterns to pronounced seasonal peaks.

Question 6

Does REGIOlink create additional workload for grid operators?

Accepted Answer

The additional effort is minimal.We take responsibility for:Modeling and calculationsTechnical designContract structuringOperational coordinationThe grid operator contributes their in-depth knowledge of the network and defines their requirements — we translate this into the appropriate connection and operating model.

REGIOLINK FOR LARGE-SCALE BATTERY STORAGE

THE GRID-SUPPORTIVE CONNECTION AND OPERATING CONCEPT FOR LARGE-SCALE BATTERY STORAGE

REGIOLINK BUILDING BLOCKS

We understand the grid before we connect the storage system.

Proven solutions instead of theoretical concepts.

The right connection concept for every grid reality.

Well-founded decisions based on data and research.

FCA BLUEPRINT

THE RIGHT CONNECTION MODEL FOR EVERY GRID REALITY

DYNAMIC FCA FOR DIGITALIZED GRIDS

EASY-TO-IMPLEMENT FCA SOLUTIONS FOR CLEARLY STRUCTURED GRID AREAS

A WIN-WIN SITUATION FOR BOTH SIDES

REGIOLINK EXAMPLE PROJECTS

FAQ – REGIOLINK