[clarification needed] The estimated volume is 286 million cubic metres (232,000 acre⋅ft).

The plant, with an installed capacity of 55 MW (74,000 hp) and average annual production of 150 gigawatt-hours (540 TJ), is used only by the industrial Votorantim Group, as Votorantim Cement Factory in St. Helena and the Companhia Brasileira de Alumínio – CBA, in Alumínio.

It was built over the Sorocaba River canyon in the São Francisco Ridge.

The water reservoir supplies Ibiúna 100%, Sorocaba 74%, Votorantim 92% and São Roque 32% and other neighboring cities.

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