Citation: BGE 141 III 495 E. 282

In this context, the Respondent argues that, even though the Claimant invokes the language of FET [acronyme pour Fair and Equitable Treatment] and unreasonable impairment, what it really asserts is an umbrella clause claim falling within the last sentence of Article 10(1) ECT. The Tribunal is not persuaded by that argument. When considering the Respondent's conduct under the criteria of FET and unreasonable impairment, all of that conduct can be relied on. This conduct includes the PPAs [acronyme pour Power Purchasing Agreements] and other contractuel arrangements between the parties which are obviously a very relevant framework regarding the expectations of the Parties. Further, their implementation by each of the Parties is indeed relevant for the examination of whether there may be a breach of the provisions on FET and unreasonable impairment. That does not make them a claim under the umbrella clause.