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Azienda Elettrica Ticinese v. Federal Republic of Germany, ICSID Case No. ARB/23/47

New
Short Name:

Azienda Elettrica Ticinese (AET) v. Germany

Case Type:
International Investment Agreement (Investor–State)
Applicable Procedural Rules:
ICSID Convention Arbitration Rules (2022)
Applicable Treaty:
Energy Charter Treaty (ECT) (1994)
Applicable Legal Instruments:
Energy Charter Treaty
Economic Sector:
Energy (Power Generation)
See case mapped on Investor-State LawGuide

Available documents

29 Sep 2023
Request for Arbitration
Document provided by: ICSID
Document Details:
PARTICIPANTS
Request for Arbitration
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Request for Arbitration
This summary note is machine-generated. Always consult the original materials.


10 May 2024
Procedural Order No. 1
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 1
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
John Beechey
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Anna Holloway
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 1
This summary note is machine-generated. Always consult the original materials.


17 Jun 2024
Procedural Order No. 2
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 2
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 2
This summary note is machine-generated. Always consult the original materials.


26 Jul 2024
Claimant’s Memorial on the Merits
Document provided by: ICSID
Document Details:
PARTICIPANTS
Claimant’s Memorial on the Merits
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant’s Memorial on the Merits
This summary note is machine-generated. Always consult the original materials.


12 Sep 2024
Procedural Order No. 3
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 3
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 3
This summary note is machine-generated. Always consult the original materials.


26 Mar 2025
Respondent’s Counter-Memorial on the Merits and Memorial on Jurisdiction
Document provided by: ICSID
Document Details:
PARTICIPANTS
Respondent’s Counter-Memorial on the Merits and Memorial on Jurisdiction
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Respondent’s Counter-Memorial on the Merits and Memorial on Jurisdiction
This summary note is machine-generated. Always consult the original materials.


17 Apr 2025
Procedural Order No. 4 on the Non-Disputing Party Application
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 4 on the Non-Disputing Party Application
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 4 on the Non-Disputing Party Application
This summary note is machine-generated. Always consult the original materials.


2 Aug 2025
Procedural Order No. 5 on Document Production
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 5 on Document Production
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 5 on Document Production
This summary note is machine-generated. Always consult the original materials.


20 Oct 2025
Procedural Order No. 6
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 6
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 6
This summary note is machine-generated. Always consult the original materials.


21 Nov 2025
Procedural Order No. 7
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 7
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Respondent appointee:
Campbell A. McLachlan
Tribunal/Panel chair
Chair/President:
Christopher Greenwood
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Richard Happ, Tim Rauschning, Nele Wachholz, Quirin Graf von Wedel-Gödens
Respondent's counsel
Sabine Konrad, Maximilian Pika, Pierre Trippel, Aurelius Cotta, Rebecca Leinen, Tim Drunkenmölle
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 7
This summary note is machine-generated. Always consult the original materials.


16 Jan 2026
Claimants' Reply on the Merits and Counter-Memorial on Jurisdiction (English)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Claimants' Reply on the Merits and Counter-Memorial on Jurisdiction (English)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimants' Reply on the Merits and Counter-Memorial on Jurisdiction (English)
This summary note is machine-generated. Always consult the original materials.


25 Feb 2026
Procedural Order No. 8 (English)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 8 (English)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 8 (English)
This summary note is machine-generated. Always consult the original materials.


18 May 2026
Respondent's Rejoinder on the Merits and Reply on Jurisdiction (English)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Respondent's Rejoinder on the Merits and Reply on Jurisdiction (English)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Respondent's Rejoinder on the Merits and Reply on Jurisdiction (English)
This summary note is machine-generated. Always consult the original materials.


16 Jun 2026
Procedural Order No. 9 (English)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Procedural Order No. 9 (English)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Campbell A. McLachlan
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Procedural Order No. 9 (English)
This summary note is machine-generated. Always consult the original materials.


17 Jul 2026
Claimant's Rejoinder on Jurisdiction (English)
Document provided by: ICSID
Document Details:
PARTICIPANTS
Claimant's Rejoinder on Jurisdiction (English)
Participants listed are for this document only and may not include all participants involved in the entire case. Always consult the original documents.
Claimant appointee
Respondent appointee
Tribunal/Panel chair
Arbitrator(s)
Sole Arbitrator
ICSID Annulment Committee president
ICSID Annulment Committee members
WTO Appellate Body members
WTO Appellate Body chair
Judges
Claimant's counsel
Respondent's counsel
Other counsel
Claimant's expert
Respondent's expert
Claimant's witness
Respondent's witness
Other witnesses
Tribunal secretary
Tribunal assistant
Country
Print reporter
Entities
Document Summary
Claimant's Rejoinder on Jurisdiction (English)
This summary note is machine-generated. Always consult the original materials.