8. In the event of an electricity crisis in which Member States have not yet agreed on regional or bilateral measures and technical, legal and financial arrangements pursuant to this Article, Member States shall agree on ad hoc measures and arrangements in order to apply this Article, including as regards fair compensation pursuant to paragraphs 4, 5 and 6. Where a Member State requests assistance before such ad hoc measures and arrangements have been agreed, it shall undertake, prior to receiving assistance, to pay fair compensation in accordance with paragraphs 4, 5 and 6.