AS4 in the schedule process electricity

Compliance in the schedule process electricity – automated and reliable

Z1 Energy ensures that you reliably comply with all transmission system operator (TSO) requirements in the scheduling process in accordance with the official German ‘Regulations for secure exchange in the scheduling process’. We integrate new regulatory requirements at an early stage so that your communication remains compliant at all times – without any additional effort on your part.

AS4 and S/MIME certificates in the schedule process

For the schedule process communication, the same AS4 certificate triple is used as for electricity market communication. As a Z1 Energy customer, you order AS4 certificate triples directly via Zertificon. We offer certificates from the registered Sub-CA DARZ.CA. You benefit from attractive conditions and a smooth process for the procurement and renewal of certificates. Email is intended for emergency communication. You can also obtain the necessary S/MIME certificates from Zertificon together with Z1 Energy. Z1 Energy takes care of the entire certificate management for your own certificates and those of your communication partners. This includes the administration, search, and storage of certificates.

Market partner and EIC management

Z1 Energy offers simple and largely automated market partner management that combines all relevant functions and market processes in a central system. Communication partners in the schedule process are identified via the Energy Identification Code (EIC). This differs from electricity market communication, where the market partner ID (MP ID) is used instead. Z1 Energy supports both, EIC and MP ID.

Prioritized transmission of schedule data

Schedule data is time-critical and therefore has priority in communication. Z1 Energy ensures that schedule data is transmitted correctly in accordance with the guidelines.

Email in the schedule process as emergency communication

In the schedule process electricity, encrypted email communication is retained as a fallback for emergencies, i.e. if AS4 communication fails. Z1 Energy ensures that in such cases, communication takes place via S/MIME-encrypted/signed emails.

Smooth integration of your schedule business application

Z1 Energy enables seamless integration into your business applications – either via a modern REST API or a proven email interface. This makes it easy to connect and automate existing processes.

The connection can be configured individually for each market partner. This also applies if you use the same MP IDs for schedule communication and market communication for electricity, but different business applications are in use.

Latest at the end of 2025, Z1 Energy ERP Adapter SAP MACO will be available as an additional specialist application adapter.