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How do you build a strong data foundation to estimate the grid expansion and investment needs accurately?

Helen Electricity Network, a Finnish grid operator, shares their approach. Learn it firsthand 👉

The ongoing electrification of heating and transport is a key part of the energy transition, but it also creates new challenges for distribution grids. Congestion can emerge quickly, locally and dynamically. Grid operators therefore need to identify critical conditions early, assess available flexibility and initiate appropriate measures without delay.

At the low-voltage level, flexible loads, distributed generation and storage can all contribute to congestion management. The key is not only to know which assets are available, but also to determine how much flexibility is needed, whether the relevant assets can actually be reached and controlled, and which intervention is most appropriate in a given grid situation.

The Congestion Management app supports the operational implementation of these processes. Redispatch processes in the low-voltage grid can be supported by transmitting external control instructions from the control system to the Intelligent Grid Platform (IGP).

In combination with Online Monitoring, critical grid areas are identified automatically. The app then determines the extent of control required to resolve the critical grid condition, supports the non-discriminatory implementation of the measure and documents the entire process. This creates a seamless end-to-end workflow.

What you can use the Congestion Management app for:

The app supports control measures for congestion management in low-voltage grids, as well as controllability checks for generation and storage assets. It also enables the automated curtailment of distributed generation where required.

Congestion-based control of flexible loads

When congestion occurs, the app automatically calculates how much the power consumption of flexible loads needs to be limited in order to relieve the affected grid area. The reduction is applied on a non-discriminatory basis and only to the extent required to resolve the critical grid condition. Appropriate control commands or setpoints can then be transmitted via standardized interfaces to the responsible downstream systems and ultimately to the individual assets. At any time, you can see which flexible loads are currently being controlled. Interventions remain active only for as long as necessary to mitigate the congestion.

Verify that generation and storage assets can actually be controlled

Generation and storage assets can only provide operational flexibility if they can be reached and respond as expected when they are needed. The Congestion Management app therefore supports systematic controllability checks for suitable generation and storage assets. Eligible assets can be selected and checked against relevant prerequisites, such as the availability of measurement data, technical eligibility and potential conflicts with other congestion management processes. The selected assets can then be activated on a test basis to verify that remote control works as intended. The results are recorded in a standardized and transparent way, providing a reliable basis for internal documentation, reporting and follow-up actions.

Automated curtailment of distributed generation

The app can automate congestion management for controllable generating assets in low-voltage grids. If high generation leads to thermal or voltage constraints, the app can initiate targeted curtailment measures. This helps comply with relevant operating limits, alleviate critical grid conditions and create additional time before grid reinforcement or expansion measures need to be implemented. Standardized control commands, comprehensive process documentation and transparent status and event logs ensure that interventions remain targeted, traceable and audit-ready.

Topological live view of ongoing control processes

The topological live view gives you a clear overview of all ongoing control measures across the grid. You can see which assets are currently being controlled or curtailed, as well as which control instructions have been forwarded and disaggregated as part of redispatch processes. The view displays all measurement values, technical resources and grid elements affected by congestion at a glance, with each category easily shown or hidden as needed.

For each control process, you can access detailed information such as the current process status, the start of the intervention, the loading of the affected grid element and the reason for the action. Additional information includes minimum and maximum voltage, remaining flexibility potential and the number of assets currently involved. Where several interventions are running in parallel, individual feeders can be analyzed separately.

Documentation and event logging of congestion management measures

All grid areas in which control measures for congestion management have been applied are documented and can be exported when needed. The event log records all relevant notifications during these control measures, ranging from event descriptions to information about the resulting effects.

The Congestion Management app supports transparent and traceable documentation of control measures and controllability checks. For each event, information such as the time, grid area and corresponding response is recorded. This allows you to respond specifically to anomalies or special cases in the automated control process when needed.

3 reasons why you will love the Congestion Management app

Secure grid operation

Secure grid operation

The Congestion Management app helps you respond quickly to overloads and voltage issues and supports the secure operation of your low-voltage grids.

Time for grid expansion

More time for grid reinforcement and expansion

By using available flexibility more intelligently, you can reduce the risk of critical grid conditions and create additional time for necessary reinforcement or expansion measures.
Put regulatory control requirements into practice

Put regulatory control requirements into practice

In combination with Online Monitoring, the app turns grid transparency into operational action: identify congestion, determine the required intervention, activate available flexibility and document the outcome in one continuous process.

Stephan Mäurer

Supervision of the flexibility management project in the low voltage grid as part of the eNET program (Avacon)

We are preparing our grids for reliable supply in a complex energy system. By designing and applying automation to eliminate congestion using the IGP, we implement a key element for grid-oriented management of flexibilities in low voltage grids.

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Whether it’s grid connection checks, grid planning, or monitoring – experience in a personalized live demo how our platform helps you actively tackle the challenges of the energy transition.

Simply fill out the form and choose your preferred time slot – you’ll receive an instant confirmation email. Please note that we will check the availability of our team and may follow up with an alternative if no sales manager is available at the selected time.

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