Cauchari Solar Plant is a photovoltaic power station with a total power capacity of 300MW which corresponds to an annual production of approximately 660 GWh. It is located in Cauchari, Jujuy Province. At an altitude of over 4000 meters, Cauchari is the highest-altitude solar power plant in the world.

Spread over 800ha, the 300MW Cauchari solar power complex comprises three PV fields, namely Cauchari I, Cauchari II, and Cauchari III, each with an installed capacity of 100MW. The solar park has been developed with a total of more than 1.18 million PV solar panels mounted on 152,000 steel piles, whose length ranges between 2.6m and 3m.

The Cauchari solar park is being developed in phases using Chinese funding and technology, under the Belt and Road initiative (BRI). Construction on the 300MW Cauchari solar project phase one was started in October 2017. Phase one was inaugurated after the completion of the trial run in October 2019.

The 300MW Cauchari solar farm, with an estimated lifespan of 25 years, is enough to power more than 160,000 households. It is further planned for a 200MW expansion in the next phase to bring the total capacity to 500MW, which will be enough to meet the electricity needs of approximately 260,000 Argentine homes.

According to the Wikipedia