Manually Activated Reserves Initiative

Manually Activated Reserves Initiative (MARI) is the European implementation project for the creation of the European mFRR platform.

Project Introduction

The Guideline on Electricity Balancing (GLEB), approved by the Electricity Cross-Border Committee on March 16th 2017, defines tasks and a timeline for the implementation of an European platform for the exchange of balancing energy from frequency restoration reserves with manual activation (mFRR).

The GLEB defines framework for common European technical, operational and market rules for a cross border balancing market. This market serves the purpose to secure economically efficient purchase and in time activation of regulation energy by simultaneously ensuring the financial neutrality of the TSOs. Important means to achieve these goals are the harmonization of the balancing energy products and a close cooperation of the TSOs on regional and European level.

Given the importance of an efficient balancing mechanism for an integrated electricity market, 19 European TSOs 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 work on a 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 19 TSOs signed a Memorandum of Understanding on April 5th 2017, which outlines the major cornerstones of the cooperation. Shortly after, the project has been officially named MARI (Manually Activated Reserves Initiative). Since then seven additional TSOs joined the project as observers and the project was designated as the European implementation project for the mFRR platform by all TSOs.


Stakeholder Workshop

The MARI stakeholder workshop was held on 4 September 2017 at the ENTSO-E premises.

View slides and agenda

MARI Press Releases and Updates