Chile’s 155 MW La Higuera hydroelectric plant, jointly owned by Australia’s Pacific Hydro Limited and Norway’s SN Power, temporarily stopped production after it became aware of problems with one of its tunnels, according to local reports.

According to ADP Renewable Energy Track, Tinguiririca Energia, the joint venture that runs the plant, informed the country’s power grid coordinator CDEC of the issue.

The firm is planning to drain the tunnel to enable it to find out what is causing the problems.

La Higuera is located in the O’Higgins region and became operational in October 2010.

The project cost over $400m, SN Power has said.

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