Ready for GeLi Gas 2.0 – and beyond

AKTIF practice AKTIF®dataService

Thursday, 26. February 2026

With nearly 70 participants, yesterday’s release webinar generated significant interest—a clear indication of the importance of the AKTIF®dataService R1/2026 release for users’ day-to-day operations in the energy sector. The focus was on the timely implementation of the regulatory requirements of GeLi Gas 2.0, which will take effect on April 1, 2026. But the release offers far more than just compliance.

In the area of market communication, the relevant formats have been comprehensively adapted. For example, AKTIF®dataService will in future support, among other things, the extended PARTIN and COMDIS formats for gas, adjustments to MSCONS, and the introduction of identification logic in UTILMDG. The latter ensures that terminations and registrations in the gas sector can now be transmitted either using the market location ID or all identification data. Additionally, error corrections have been implemented in UTILMDS, including the new transaction reason “Transitional Supply ZZD.” Also new: Network usage invoices in the gas sector can now be rejected by the network operator, whereby the incoming COMDIS reactivates the invoice and processing proceeds in the same manner as in the electricity sector. In addition, work and power values prior to the start of supply are now imported and will be taken into account in both invoice verification and billing going forward.

Beyond regulatory changes, users benefit from numerous convenience features and new functionalities. The sales module has been enhanced with practical features—such as the ability to delete multiple meter readings and energy quantities simultaneously, expanded information on balancing groups and control areas for feed-in contracts, and new reports for monitoring outage-related work. In invoice verification, the new “Reconciliation & Calculation” option is now available for resubmissions, which performs a meter data reconciliation prior to the actual calculation. In billing, the reporting requirement for reducing the gas storage surcharge has been implemented, the price type check has been expanded to the customer level, and XRechnung has been upgraded to version 3.0.

Furthermore, this release rolled out the foundation for task management and process automation across all systems—a promising building block that, following individual implementation, has the potential to significantly streamline workflows once again. Overall, the R1/2026 release once again underscores AKTIF’s commitment to providing its customers not only with regulatory compliance but also with genuine added value in their day-to-day operations.