Case Study: 113.18 MW Boco Rock Wind Farm

Boco Rock Wind Farm is CWP Renewables’ first development project, and one we are proud of. Our experienced staff have seen the project through from early site investigation in 2007 to construction, which began in 2013, and our involvement has continued into operation. Stage One of the project comprises 67 wind turbines, comprising two of the four approved clusters. It is located in southern NSW, approximately 10 km south west of Nimmitabel and 30 km north of Bombala. The approved project comprises up to a total of 122 wind turbines.

Wind Turbines
Total Capacity
Homes Supplied
Tonnes CO2 Displaced

Site Identification

Boco Rock is the result of an extensive assessment of potential sites across the State of NSW. This assessment initially required complex GIS analysis of wind resource and landform, followed by detailed consideration of local community issues, environmental constraints, surrounding land use, grid connection and many other technical factors. This comprehensive site analysis was undertaken at the Boco Rock site from 2007 through to project approval in 2010.

More broadly, this State-wide selection process allowed us to rank potential sites on their probability of development success, and resulted in identification of some of the best development sites in NSW, those which now make up the CWP Renewables portfolio.

Community Consultation

Engaging with local communities early and transparently helped build Boco Rock.

Stakeholder consultation evolved with development, from the Preliminary Environmental Assessment, through to public exhibitions, newsletters, meetings and updates. Community and agency feedback was incorporated into the project design, and resulted in the project Environmental Assessment and eventually Preferred Project Report.

Wind Monitoring

Wind is literally the driving force behind any wind farm development, so understanding how windy it is across a site is critical. CWP Renewables employ a complex wind monitoring regime across our portfolio to maximise confidence in wind resource and optimise both the project layout and wind turbine procurement process.

Meteorological masts were used for wind resource assessment throughout the development phase, installed progressively from 2008 onwards. Permanent masts, installed during construction, will be used throughout operation to verify ongoing wind resource analysis.

Mobile Triton Sonic Profilers were also used in conjunction with masts. These devices measure wind speed and direction through the scattering of sounds waves by atmospheric turbulence. They allow rapid data collection and correlation with data from fixed masts.

Environmental Assessment

Once it has been determined that a wind farm is viable in a particular location, information is collected on a range of aspects in order to prepare the Environmental Assessment (EA). The purpose of the EA is to provide a complete, detailed account of how the project will impact the local environment and how it would look once constructed, for assessment purposes. The EA is submitted to the NSW Department of Planning, outlining what the project is and how it will be constructed.

Planning Approval

CWP Renewables brings a wealth of experience to the projects in our portfolio, including in the fields of project design, technical and social assessment and project delivery. These skills drive confident development of sites from greenfield sites through a planning pathway to fully approved and financially competitive projects.

An EA was submitted to the NSW Department of Planning for Boco Rock in 2009. The EA was a comprehensive document that drew together high level detail of the project, the independent technical assessments that had been undertaken and the social context in which the project was proposed.

In NSW, such documents are assessed by both the State and Federal Governments, by key agencies such as the Roads and Maritime Services, and by the public, through an exhibition and submission process. This process creates a feedback loop that provides for peer review of the project, design improvements and, finally, a Governmental decision.

The robust planning, design and consultation process undertaken at Boco Rock meant planning approval was achieved in 2010, making it CWP Renewables’ first approved wind farm in Australia.