traveled from the Vestas manufacturing plant in Denmark. A barge delivered the components to Oshawa, and trucks hauled them from there to the site. Power from the wind turbine traveled on underground cables into the electrical grid system. The amount of electricity produced by the wind turbine depended on the strength and quality of the winds at any given time. The wind speed at which this turbine began to generate electricity (its cut-in speed) was about 16.9 km/h (10.5 mph). When operating, the blades turned at a constant speed of 15.7 revolutions per minute. If the wind speed was more than 90 km/h (56 mph), on-board computers shut off the turbine and feathered the blades to avoid potential damage from metal strain under such conditions. Technicians could access the generator atop the tower by climbing a ladder inside the hollow tower. Because of this difficult access, public tours of the wind turbine were not permitted. However, the turbine featured prominently in the corporation's public relations campaigns, and there were occasional guided tours. Ontario Power Generation's Evergreen Energy control room in North Bay monitored the wind turbine's operation 24 hours per day, 7 days a week. See also Ontario Power Generation Wind power in Canada References Renewable energy in Canada Wind power Pickering, Ontario