As a reminder: Since April 1, 2024, electricity suppliers and electricity grid operators have had to send their market messages in AS4 format. The changeover went smoothly for the customers supported by Arvato Systems, but by no means everywhere in the market. In steps two and three, the AS4 changeover in balancing group management for electricity and in the gas market will now follow. The Federal Network Agency has defined a transition period of just two months (October 1 to December 1, 2024) for electricity balancing group managers. The gas sector will also start on October 1, 2024, but has six months to make the switch (until April 1, 2025).

"Energy suppliers will be prepared"

"The electricity suppliers have already taken the biggest step," says Alexander Beck, Business Development Arvato Systems. "We assume that there will be a transfer of knowledge within the companies and that the balancing group managers will be prepared accordingly. In addition, the suppliers are organized in associations in which the AS4 changeover is also discussed. Of course, we are also informing our customers about the to-dos in market communication." There is potential for uncertainty in two circumstances: Firstly, the BKV software is a completely separate system world, and secondly, the contact persons are different to those involved in the first AS4 project.

Gas suppliers are entering new territory

Gas suppliers in the cross-network should also have already come into contact with the topic of AS4 through the changeover in the electricity sector. Companies that operate exclusively as gas suppliers, on the other hand, are entering uncharted territory and often still need to find partners for implementation. Bastian Schwartz, Manager IT and Service Market Communication at Arvato Systems, is nevertheless confident: "Many companies will learn from the experience gained in the electricity sector and do their homework at the beginning of the transition period. In addition to early adopters who are playing it safe, experience has shown that there will also be companies that are running out of time."

"Apply for certificates in good time!"

The most effective way to prevent this? "Applying for certificates in good time is the be-all and end-all," advises Alexander Beck. "We can provide effective support with this together with our partner Thüga SmartService." But Arvato Systems has also taken precautions in all other respects: it operates its own high-performance hardware security modules (HSM) in its own certified data centers. The experienced IT service provider therefore meets all criteria for the operation of critical infrastructures and can provide 24/7 operation in compliance with all security requirements, including all support levels. Onboarding new customers is also no problem.

"Can offer a complete solution by August 1"

What is already up and running at Arvato Systems, and what still needs to be done? "Our AS4 solution can already route EDIFACT data, as used in the gas market," reports Bastian Schwartz. "For the exchange of XML files in schedule management, we still have to make minor adjustments to our industry solution B2B by Practice in order to link schedule management and market communication. We have made all the preparations so that we can offer our customers a complete solution by August 1. This also includes the extended requirements that transmission system operators place on AS4-based market communication."