Argentina’s integrated grid, known as SADI, currently operates approximately 20,300 kilometers of lines, including 14,200 kilometers at 500 kV. Transener operates the primary high-voltage transmission system alongside regional partners. The constraint comes as multiple sectors prepare for sharp increases in electricity consumption. Mining sector demand could surge from 1,256 GWh in 2024 to 6,630 GWh by 2034, a rise exceeding 400%, according to analysis by the Latin American and Caribbean Energy Organization. In San Juan province, regulators in late July approved expansion of the Nueva San Juan-Rodeo corridor to 500 kV, involving approximately US$800 million and priority access for the Josemaría copper project.
Vaca Muerta operators face similar pressures, with some companies evaluating captive generation to bypass grid limitations. The shift to electric fracturing equipment, which can require tens of megawatts per operating unit, compounds transmission requirements. Renewable energy expansion introduces another dimension: wind and solar parks often sit distant from consumption centers, meaning installed capacity does not translate into deliverable electricity without additional transmission lines. In Río Negro, the provincial government advanced an US$8.4 million electric infrastructure project, El Solito–Negro Muerto, covering more than 32 kilometers of lines to enable incorporation of 13,000 hectares into agricultural production, illustrating localized infrastructure gaps beyond the national trunk system.
This article was curated and published as part of our South American energy market coverage.
