The project, which costs $1 B (EUR 890 M), connects the Santiago Metropolitan Region with its neighbours to the north, Valparaiso, Coquimbo and Atacama. Due to geographic convenience, the northern regions house most of the country’s renewable energy power plants, therefore, the connection to the south is crucial.
The Cardones-Polpaico project involved the construction of 1,728 high voltage towers, 3 new substations and the expansion of 4 existing substations. The transmission line is divided into three subsections starting in the Atacama region and finishing in the Metropolitan provinces with all three sections energised by May 2019.
According to the latest report by the Chilean national energy commission, there were a total of 1,358 MW of renewable energy projects under construction in Chile at the end of April and another 380 MW of power plants were in the trial stage.
Source: Renewables Now