Manually Activated Reserves Initiative
Manually Activated Reserves Initiative (MARI) is the European implementation project for the creation, future development, and operation of the European mFRR platform.
Project Introduction
The Electricity Balancing guideline (hereinafter the ‘EB Regulation‘), approved by the Electricity Cross-Border Committee on 16 March 2017, defines tasks and a timeline for the implementation of a European platform for the exchange of balancing energy from frequency restoration reserves with manual activation (mFRR).
Given the importance of an efficient balancing mechanism for an integrated electricity market, back in 2017, 19 European TSOs initially decided to work on the design of an mFRR platform in order to address pending issues and questions connected with the establishment of such a platform as soon as possible. These TSOs decided to set a project, officially named MARI (Manually Activated Reserves Initiative), and worked on the technical solution, which does not only reflect the views of the founding parties but could also be acceptable for potential new parties joining the initiative. The project was designated as the European implementation project for the mFRR platform by all TSOs. Since then, several TSOs joined MARI.
On 24 July 2019, all regulatory authorities referred the TSOs’ mFRR IF proposal to ACER. On 24 January 2020, ACER adopted a Decision and set the deadline for the implementation of the mFRR platform, which shall fulfil all requirements defined in the mFRR IF by 30 months following the decision. On 5 October 2022 the platform has been brought successfully into operation with accession of the four German TSOs and ČEPS. In June 2023 APG and during Q4 2024 the Baltic TSOs, REN and SEPS accessed. Further TSOs are expected to access the platform in the course of 2024 and 2025.
Members
The parties involved are:
- Member TSOs: 50Hertz Transmission, ADMIE, Amprion, APG, AST, ČEPS, Creos, Elering, ELES, ELIA, Energinet, ESO, Fingrid, HOPS, Litgrid, MAVIR, PSE, REE, REN, RTE, SEPS, Statnett, Svenska Kraftnät, Swissgrid, TenneT DE, TenneT NL, Terna, Transelectrica, and TransnetBW.
- Observers: EirGrid, EMS, MEPSO, SONI, ENTSO-E.
Key Performance Indicators of Implementation and Operation of the mFRR-Platform
According to the Article 13.1 of the Annex I to the ACER Decision on the Implementation framework for mFRR Platform, all member TSOs shall monitor, evaluate and report on the key performance indicators of implementation and operation of the mFRR-Platform at least on a yearly basis. The common report shall be published by ENTSO-E on its website and reported to regulatory authorities.
Stakeholder Workshops
- Balancing platforms stakeholder’s workshop
- Balancing platforms stakeholder’s workshop
- Balancing platforms stakeholder’s workshop
- PICASSO-MARI Stakeholder Workshop
- MARI workshop
- MARI and PICASSO implementation workshop
- Workshop on All TSO proposals on activation purposes and pricing
- Workshop on balancing
- YouTube
Slides
Publications
- Publication of the new Accession Roadmap
- Updated accession roadmap of MARI
- Updated accession roadmap of MARI
- Updated accession roadmap of MARI
- MARI Activation Optimization Function - Public Description
- Updated accession roadmap of MARI
- Go Live Announcement: Capacity Management IT Solution
- MARI - Bid Structure and Linking
- Updated accession roadmap of MARI
- MARI Activation Optimization Function - Public Description
- Updated accession roadmap of MARI
- mFRR Implementation Framework
- MARI – Bid Structure and Linking document
- MARI Algorithm Description
- Updated accession roadmap of MARI
- Updated accession roadmap of MARI
- Updated accession roadmap of MARI
- Updated accession roadmap of MARI
- Accession roadmap of MARI
- N-SIDE Final Report
N-SIDE Clarifying Questions
News and information notes
- Communication note of SEPS connection to MARI
- REN successfully accessed the MARI platform
- Communication note of Baltic TSOs connection to MARI
- APG successfully accessed to MARI platform
- Go-Live of MARI
- mFRR Implementation Framework
- The First Consultation (Call for Input) - 19 European TSOs Seek Stakeholders’ Feedback
- 19 European TSOs agree to further cooperation on mFRR-platform
Consultations
- mFRR Implementation Framework before submission 18 December 2018
- mFRR Platform Design - First Consultation
Contacts
- PMO: Susanne Dornick
- PMO: Dilan Özyildirim