The transmission system operator Tennet and the company Numbat have launched a pilot project to reduce bottlenecks in the power grid and stabilize the transmission system.
Tennet and the Bavarian clean-tech company Numbat want to jointly use the flexibility potential of decentrally distributed Numbat systems to reduce bottlenecks in the power grid. Specifically, this is to be achieved by adjusting the charging and feed-in behavior of Numbat's charging stations and battery storage systems: Their power consumption can be lowered, or they can be used to feed energy back into the grid.
The reason for the cooperation is the increasing number of bottlenecks in the German grid. They arise because more and more electricity has to be transported from the windy north to the major industrial centers in the south and west of Germany. To counteract bottlenecks, conventional power plants in the south are often ramped up at short notice and wind turbines in the north are shut down. Particularly against the backdrop of ambitious decarbonization targets and increased energy prices, for example for natural gas, alternatives for such congestion management are becoming increasingly important.
Martin Schall, founder and one of the managing directors of Numbat, explained: "When there are bottlenecks in the transmission grid, geographically distributed systems like our Numbats with their battery storage can help balance them out." In this context, the Numbat systems are connected via the "Equigy Crowd Balancing Platform," a platform jointly developed by several European transmission system operators that enables small flexibility systems such as battery electric vehicles, heat pumps or battery storage systems to participate in the various flexibility markets across Europe.
"Tennet is conducting research in numerous projects on how decentralized small-scale flexibilities, such as battery electric vehicles and their charging infrastructure, can be integrated into the transmission grid in a grid-serving manner. They impressively illustrate that these micro-flexibilities can complement the grid expansion and relieve the transmission grid," emphasized Tennet COO Tim Meyerjürgens. However, in order to harness the potential of these flexibilities, adjustments to the currently existing legal framework and market design are required, he added.
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