Information on installation control

The Installation Control team wishes you a successful start to 2024 and a productive business year. We would like to thank you for your trust and the pleasant collaboration over the past year. Your expertise is crucial to maintaining efficiency in the electronic reporting system. In view of the increasing requirements and the growing number of reporting forms, we would like to explain a few points to you to ensure the continued satisfaction of all parties involved.

General information

Dismantling of ripple control receivers
Primeo Netz AG's aim is to gradually dismantle the existing ripple control receivers (RSE) from 2025 and to switch to modern technologies (e.g. load management systems LMS). All old ripple control systems in the entire Primeo Energie grid area are expected to be decommissioned by 2034.

In the event of significant changes (e.g. total refurbishment, replacement of main distribution boards) to existing installations with active factory control systems, these are no longer to be taken over or reinstalled. The factory controls and the RSE must be dismantled and, if desired, a separate (on-site) control system must be provided. However, all switchgear combinations with measuring devices must still be provided with an RSE reserve location including a control overcurrent circuit breaker.

Further information can be found here (German only).

Control of electric mobility charging stations
According to the works regulations in force since 1 January 2023 (WV TAB 2022), all charging stations or charging systems with an output >3.7 kVA must be controlled in such a way that the distribution system operator (DSO) can temporarily reduce the charging power by at least 50 percent in an emergency. The control system must be implemented in accordance with diagram B 12.3-1, including standardised control cables.

A factsheet on the various control options can be found via the following link.

This measure should not be confused with the requirements of our electric mobility tariff. Here, we can reduce the charging capacity to 50 per cent during certain hours and the customer is rewarded with a correspondingly lower tariff. This is a reduction for operational optimisation and not, as in the previous case, an emergency measure that is not remunerated. A separate meter is required for the electromobility tariff. Further information on the tariff can be found here.

Optional tariff for the return delivery of electricity from photovoltaic systems
Since 1 July 2023, Primeo Energie has been offering an optional tariff as an alternative to the previous redelivery tariff, which provides for a differentiation of remuneration according to summer, winter, high and low tariff. It is particularly suitable for producers of a photovoltaic system with redelivery outside of peak times (e.g. due to a high level of self-consumption) and a high proportion of production in winter (e.g. with a façade system). Further information can be found in our product and price sheet.

Reporting system

Efficient entry of reporting forms
Ensure that the necessary reporting forms are entered at an early stage during the planning phase. A correct and efficient reporting process in accordance with the applicable Technical Connection Conditions (TAB) will reduce your administrative workload and satisfy our mutual customers.

In the case of larger photovoltaic systems where the definitive feed-in power may not yet be fully known, connection information can be requested as early as the planning phase. This enables us to inform you of any necessary measures at an early stage, which you can incorporate into your planning. The connection information does not replace the required technical connection application (TAG).

Technical connection applications
For the following appliances and systems, a technical connection application must always be submitted by the system manufacturer (e.g. heating installer, lift installer, etc.) or electrician before the installation notification is submitted.

  • Devices and systems that cause grid perturbations (e.g. semiconductor contactors, lift systems, etc.)
  • Energy generation systems in parallel operation with the low-voltage distribution grid
  • Electrical energy storage systems connected to the low-voltage distribution grid
  • Devices and systems for electric heat, heat pumps, cooling systems, etc.
  • Charging infrastructure for electric vehicles

The electrical installation company installing the electrical connection for such systems must ensure that the necessary authorised TAGs are available from the various trades (system manufacturers) before submitting the installation notification.

If there are changes or extensions to the project and there is already an approved TAG for a device or system from which a corrected entry of the TAG is required, please note this in detail in the comments field of the new TAG. The comments field should explain whether the previous TAG is being replaced by the newly submitted one.

Installation notifications with photovoltaic systems
In the case of PV systems, a separate installation notification must be submitted for the AC and DC sections if they are installed by two different companies. Please always indicate on your installation notification (IA) which company is installing the AC and which the DC part of the system (please also indicate if the AC and DC parts are being installed by the same company). This clearly defines the interface for the continuous reporting process at PVA. If this is not explicitly mentioned and the installation notification is entered by a company with a general installation licence, it is assumed that the complete PVA (AC and DC part) is installed by the same company.

If the installation notification for the DC part is submitted before the IA-AC, this is now subject to prior approval. As not all parts of the installation can be assessed with the IA for the DC part, a comprehensive assessment will only take place once the IA for the AC part has been received. The installations may only be carried out once both installation notifications have been approved.

Additional information on final and acceptance inspections for EEA/PVA can be found here (German only).

If significant changes are made to the unmetered part or to the measuring and control devices, a complete schematic/principle diagram must always be submitted with the installation notification. The house connection box (HAK) with connection overcurrent breaker, earthing cable, all measuring and control devices with rated currents of the overcurrent breakers and any existing factory controls (PVA/charging stations, boilers, heat pumps, etc.) must be shown in full. This also applies to the installation of PVA and charging stations. The control system must always be clearly shown in the diagram. Only one control contact is required for PVA <30 kVA and charging stations. Control takes place directly from the control contact of the corresponding meter. A load management module (LMM) is not required in this case.

On request by e-mail to, we will be happy to send you existing schematics for inspection or for your supplement (if available).

From around mid-2024, you will be able to view the diagrams archived by us as well as connection applications that have already been approved directly in your ElektroForm application.

Please note that supplements to existing diagrams (manual or digital) must still be dated and signed in green.

We cannot guarantee the correctness and completeness of all schemas that you take from our archive.

The diagrams must correlate with the situation on site when the installation notification is entered. The responsibility for correctness and completeness lies with you as the company carrying out the work and must always be checked. If the diagram you have received from us does not meet our requirements, the technical documentation on site must be used (in accordance with NIV Art. 5/NIN

Measurement technology

Once the installation notification has been approved and the work has been completed, the appliance order must be submitted at least five working days before the system is commissioned, if necessary.

Please always generate the appliance order from the installation notification approved by us in your ElektroForm application.

If defects are found during on-site meter installation that prevent commissioning or installation of the measuring and control equipment, the additional costs (e.g. second follow-up meter installer) may be charged to the company carrying out the work in future.

The Metrology department will provide separate information on this topic in the near future.

If you have any questions, please contact the Metrology department directly on +41 61 415 40 85 or by e-mail at

New flyer - grid connection products

In a world in which the electricity grid is constantly changing, e-charging stations, photovoltaic systems, heat pumps and other sustainable measures are becoming increasingly important. This makes it all the more important to plan the connection of a property at an early stage.

A new product flyer on the subject of grid connections is now available to make this planning easier and to help you as an electrical planner or installer, as well as architects or property owners.

Click here (German only) to explore the flyer and find out about the wide range of options.

If you have any project-specific questions about grid connections, please contact us directly by e-mail at

We would like to thank you for the pleasant cooperation and will of course be happy to answer any questions you may have.