On April 7, 2026, the Secretary of Energy published Resolution No. 83/2026, which incorporates a new section into the expansions of power transmission regulatory framework “Expansions through Public Works Concessions (Law No. 17,520)” pursuant to the provisions of Resolution No. 715/2025 of the Ministry of Economy (“Resolution 715”) and Resolution No. 311/2025 of the Secretary of Energy (“Resolution 311”) (see our comments on these regulations here and here).
Expansions to be carried out under the regime of the Public Works Concessions Law No. 17,520 (the “PWC Expansions”) are aimed at enabling transmission works that are essential to mitigate the risks associated with supply constraints in the Argentinean Interconnection System and to promote private investment.
The new mechanism shall be implemented by successful bidders under public tenders called by the Secretary of Energy, who shall enter into public works concession agreements (the “PWC Agreements”) and act as concessionaires.
Concessionaires remuneration shall be paid directly by the dispatching authority and includes: (i) a monthly remuneration to recover the investment, which may be funded through tariffs charged to WEM users identified as beneficiaries of the relevant expansion and is awarded the same priority level as existing high-voltage transmission service providers under the WEM regulations (i.e. highest priority payment within the WEM payment waterfall); and (ii) an operation and maintenance rate, determined by the regulatory body, once commercial operation of the relevant expansion is achieved.
The next step for the transmission expansion plan is the call for the public tenders envisaged for the works identified in Resolution 311: “AMBA I”, “500 kV Río Diamante – Charlone – O’Higgins Line” and “500 kV Puerto Madryn – Choele Choel – Bahía Blanca Line”.
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For further information, please contact Nicolás Eliaschev, Javier Constanzó, Daiana Perrone, Milagros Piñeiro, Macarena Becerra Martínez, Rocío Valdez, Victoria Barrueco, Sol Villegas Leiva, María Paz Albar Díaz, Manuel Crespi, Nair Ivanoff Ravnensky and/or Fermín Bartos.