Are you a distribution network operator facing new testing mandates? This article dives into the critical testing obligations for generation plants, as outlined in the German Energy Industry Act. Learn why understanding and proactively preparing for these changes is vital for maintaining grid stability and ensuring future compliance with the latest regulations on distribution network operators.
Distribution Network Operators Face New Testing Mandates for Generation Plants
The Impending test Obligation: A Race Against the Clock?
Distribution network operators are facing a critical deadline. This year, they must rigorously test their control connections to medium-sized and large generation plants, as mandated by § 12 of the German Energy Industry Act (EnWG). Transmission system operators are expected to release corresponding guidelines for their respective network areas by April 25th. Though, industry experts are urging distribution network operators to proactively prepare for these tests now.
Sören Patzack, partner for digitization at the Aachen consulting company Bet, emphasized the importance of early preparation in a recent interview. This year the test obligation only extends to plants over 100 kW.
He further explained that, starting next year, the obligation will expand to include all systems controllable by the network operator, even those under 100 kW.
The Push for Controllability: Addressing Grid Overload Concerns
The driving force behind these mandates is the transmission system operators’ concern about potential grid overload due to high solar feed-in. The ability for distribution network operators to effectively manage and, if necessary, curtail a large number of systems is paramount to maintaining grid stability.
if necessary, the distribution network operators should be able to sign as many systems as possible.
Sören Patzack, bet
Technical Challenges: Reliability of Control mechanisms
Currently, plants exceeding 100 kW connect to network operators using two primary technologies: long-distance technology, enabling bidirectional dialogue, and radio control. While long-distance technology generally functions reliably, radio control presents challenges.
Patzack noted that While the telephone technology usually works smoothly, this is not necessarily the case with the radio control control.
He pointed out that radio control is successful in only approximately 50 to 70 percent of cases.This unreliability underscores the need for thorough testing and potential retrofitting of systems.
Timeline and Recommendations: Preparing for 2026 and Beyond
The mandatory testing period is scheduled from May to October.despite the transmission system operators’ guidelines being released near the end of April, distribution network operators can proactively begin preparations. This includes conducting a extensive inventory to determine which systems are connected, the methods of connection, the dates of the last tests, and the results of those tests.
Based on this data, distribution network operators can identify systems requiring retrofitting, especially larger systems that are not yet taxable. Looking ahead, Patzack advises that if tests become mandatory for all systems in 2026, the preparation will be even more demanding.He strongly recommends taking appropriate preparatory measures now to avoid future bottlenecks and ensure compliance.
Expert Insight: The Importance of Proactive measures
Industry experts emphasize that proactive preparation is not merely about meeting regulatory requirements. ItS about ensuring the stability and reliability of the energy grid in the face of increasing renewable energy integration. By taking steps now, distribution network operators can mitigate risks, optimize their control capabilities, and contribute to a more resilient energy future.
