ERRA asked Mr. Gatis Junghans, ERRA Conference Panelist of AST Latvia, speaking of the needed coordination between TSOs and DSOs. Gatis suggests an integrated system approach


Q: Behind the meter generation is posing significant challenges to TSOs due to lack of aggregated data on forecast production levels and increased reserve capacities that have to be ramped up to meet reduced contribution from prosumer plants. How important of a role will DSOs have in providing additional flexibility in the future and what policy measures have to be undertaken to enhance TSO-DSO cooperation?


A: The constant increase in distributed renewable generation and in storage, and the expected rise of active customers engaging in demand response and electric mobility, trigger a need to integrate the flexibility services provided by these new assets and actors into the energy market and use their services for congestion management and further in balancing, while ensuring efficient and reliable system operation and enabling the market uptake for flexibility resources. Furthermore, the Clean Energy Package gives the possibility to the DSOs to procure non-frequency ancillary services to manage, among others, congestion on their grid. Effective coordination between DSOs and TSOs and resilient, efficient and effective ‘signalling’ (information sharing) become increasingly important to ensure cost-efficient, sustainable and reliable system and grid operation as well as facilitating markets throughout Europe. Besides the co-operation of DSOs and TSOs with market parties, co-operation with consumer organisations is also very important to secure the development of trustful and engaging market models. The starting point should be: TSOs and DSOs should pursue an integrated system approach when developing new solutions and should avoid any isolated solution.