Councillors have objected to plans for a new hydro scheme that would draw water from Loch Ness to generate electricity.
Statera Energy’s pumped storage hydro project would involve constructing a power station and tunnels at Loch Kemp near Whitebridge, about 10 miles (16km) north of Fort Augustus.
The Scottish government, which has a say on whether it eventually goes ahead or not, has consulted Highland Council on the proposals.
The local authority’s south planning applications voted 8-2 in favour of a motion opposing the project due to a number of concerns, including impacts on wildlife and tourism.
Highland Council officials had recommended councillors raised no objection.
Statera Energy said it was disappointed by the decision, but looked forward to Scottish ministers determining its application.
Aird and Loch Ness councillor Chris Ballance, who put forward the motion, said ancient woodlands along the loch’s shores could be adversely affected by changes in water level.
He said wildlife, such as otters, and the “special qualities” of Loch Ness could be put at risk.
Mr Ballance also argued that a tourism impact assessment had not been carried out, and his motion also raised concerns about construction traffic on local roads.
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