Diavik Wind FarmNWT Chamber of Commerce

4th April 2012

Location

Diavik

Diavik

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• Diavik is completely dependent on diesel for all site power needs.• Hybrid power options sought to reduce cost and decrease GHG emissions.

Why Wind Power?

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• Reduced power generation costs.• ~ $30 million investment with 8 year

payback.

• ~ 10% reduction in diesel power generation.

• > 4 million litres reduction in diesel usage per year.• Equates to around 100 truckloads per

year.

• 12,000 tonnes reduction in CO2 emissions per year.

• 6% overall reduction in GHG emissions.

What will Wind Power deliver?

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• Four Enercon E70 generators.• 9.2 Megawatt installed capacity

• 2.1 to 6 Megawatt online capacity.

• 17 GWh power produced annually.

• Designed to operate to -40oC.

Diavik Wind Farm• Tower height 65m• Blade length 35m• Total height 100m• Generator weight 55 tonnes

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• 2008 Commence wind data collection.

• 2010 Analysis of wind data and project feasibility study.

• 2011 Project approval / contract negotiations.

Generators ordered and commenced

construction.

Site geotech. drilling / construction commenced.

Generator components shipped to Canada.

• 2012 Generator components transported to site via the Winter

Road.

Complete site construction and erection of wind

turbines.

Power generation commences.

Timeline

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Timeline

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• First large scale wind farm installed at a remote operating mine.

• Largest remote wind-diesel power generation installation.

• Application of technology designed for arctic conditions.

Innovation

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• Demonstrate wind power as a viable

component of power generation in the

North.

• Provide support to future wind power

initiatives and develop northern

capability.

• Weather tower donated to Det’on Cho

Earth Energy Giant Mine study.

Benefits beyond Diavik…

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Questions?