Scottish ministers and SSE have won an appeal against an earlier ruling that the approval of Stronelairg wind farm in the Highlands was “defective”.
The John Muir Trust opposed the granting of consent in June 2014 for SSE’s development, located south-east of Fort Augustus in the Great Glen.
The conservation charity launched a legal challenge on the basis it would have an unacceptable impact on wild land.
In the latest decision, Lord Carloway concluded the granting of consent for Stronelairg was lawful.
Stuart Brooks, chief executive of the John Muir Trust, said the charity was “disappointed”.