According to energy minister Fergus Ewing, the wind farm will generate enough energy to power 40,000 homes, as well as creating 90 jobs during the two year construction period.
He added that construction of the wind farm would inject £30 million into the Highland economy, and a further £3 million per year once it was built.
A Scottish government statement said that RidgeWind will provide five £1,000 scholarships for local young people going to university or technical college. Students resident in the community council areas that will host the wind farm – Fort Augustus & Glenmoriston and Glengarry – will be given priority.
Ewing said: "Once it [the wind farm] is up and running it will save thousands of tonnes of carbon dioxide each year, and it is expected that the savings made will ‘pay off’ the carbon footprint of constructing the site in less than two years.
"In consenting this application I have put in place a series of conditions to protect natural habitats, local communities and local wildlife. This includes a research programme into common scoter breeding ecology which was suggested by the RSPB and will include scoter and mammal surveys, fish studies, and investigation of the loch profile."