# Argentina Vicuña copper project transmission

> Live situation record from CLSTR: https://clstr.news/situations/argentina-vicua-copper-project-transmission
> Updated: 2026-07-31T09:27:31.000Z. Sources: 16. Developments: 2.

On July 29, Argentina’s electricity regulator ENREGE ratified Vicuña’s request for priority access to a new 500 kV transmission line, allocating 90 % of the line’s capacity to the San Juan copper project. The approval cleared the way for the project’s power supply, involved roughly US$800 million of private investment, was said not to affect consumer tariffs, and was accompanied by a public consultation on aggregate quarries for the project’s construction phase.

Two days later, Vicuña’s country director reiterated the regulator’s decision, stressing that existing infrastructure would not be altered and that any unused capacity could be made available to other users. The same report noted a separate consumer‑bill lawsuit in La Rioja, where a provincial deputy plans to challenge steep electricity charges, underscoring ongoing regulatory tensions in Argentina’s electricity market.

## Timeline

### 2026-07-31: Argentina's power sector faces consumer lawsuit and new transmission line priority dispute

Argentina sees a consumer lawsuit against Edelar over high electricity bills in La Rioja and a regulator‑approved priority for Vicuña on a new 500 kV line, underscoring sector disputes.

6 sources. https://clstr.news/cluster/argentinas-power-sector-faces-consumer-lawsuit-and-new-transmission-line-priority-dispute

### 2026-07-29: Vicuña copper project secures priority access to 500 kV transmission line in Argentina

Argentina’s ENREGE approved Vicuña’s priority use of a 500 kV line (90% capacity) for its San Juan copper project, clearing $800 m of private transmission work, while a five‑day public quarry consultation for a

10 sources. https://clstr.news/cluster/vicua-copper-project-secures-priority-access-to-500-kv-transmission-line-in-argentina

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Cite as: Argentina Vicuña copper project transmission. CLSTR, https://clstr.news/situations/argentina-vicua-copper-project-transmission