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Argentina Relaunches Tender for Comahue Hydropower Dams, Sets Nov. 7 Bid Date

Officials toughened terms to reduce legal risk after the AES arbitration, adding a water‑use fee, optional provincial equity and stricter vetting of bidders.

Overview

  • Following the post‑election reset, the Energy Secretariat reopened the process to renew private operation of the Alicurá, El Chocón‑Arroyito, Cerros Colorados‑Planicie Banderita and Piedra del Águila dams.
  • Bids are due on November 7, 2025, and the government expects to award the concessions before year‑end to ensure continuity under updated conditions.
  • The framework preserves private management under stronger state and provincial oversight, with Neuquén and Río Negro able to take up to 10% equity.
  • A new water‑use canon will be charged, and a defined share of revenues will fund hydraulic works prioritized by the Inter‑Jurisdictional Basin Authority (AIC).
  • Authorities will closely review companies’ legal and arbitration records, citing AES’s more than US$700 million 2025 award as a precedent that warrants careful adjudication.