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Publikuoti: 12/9/2021. Atnaujinta: 12/9/2021

NERC approves TSOs‘ request for a derogation of the deadline for joining the MARI platform


The National energy regulatory council (NERC) has approved the request of the transmission system operator LITGRID AB for a derogation of the deadline for joining the European platform for the exchange of balancing energy from frequency restoration reserves with manual activation (MARI). According to Article 20 (6) of Commission Regulation (EU) 2017/2195 of November 23, 2017, establishing a guideline on electricity balancing (EB GL), unless an exemption is granted, all TSOs have to join the MARI platform by 24 July 2022.

Earlier this year, the Baltic TSOs jointly applied to the Baltic National Regulatory Authorities (NRAs) for a derogation on the deadline for connecting to the MARI platform, based on the EB GL. The derogation request included well detailed explanations and other necessary information. NERC reviewed the request and decided to approve the request for derogation, and to allow LITGRID to join the MARI platform along with the Nordic TSOs, but no later than July 24, 2024. Nordic TSOs are expected to join the MARI platform between Q3 2023 – Q2 2024.

A common balancing market will allow EU Member States to share the resources used by their transmission system operators to make generation equal demand. This should help increase security of supply, limit carbon emissions and diminish costs to customers. The MARI platform will increase the reliability of the system, the efficiency of operators and market participants, and create opportunities to integrate more electricity generation from renewable sources.

The detailed material of 19 November 2021 public hearing is available here.​