Mount Emerald Wind Farm is a 180 MW wind farm situated on Mount Emerald, in Arriga, Shire of Mareeba, Queensland, Australia. It is approximately 8 km WNW of Tolga, and 49 km SW of Cairns. The project is a joint venture between Port Bajool (land owner) and RATCH-Australia (wind farm developer and operator). RATCH-Australia bought the project from Transfield Services in July 2011. The wind farm incorporates 53 turbines.