sentences:  The Cockle Creek power station was built by Caledonian Collieries Limited between 1925 and 1927 to use low grade coal to provide power to Caledonian Collieries mines and the surrounding townships in both the Lake Macquarie and Cessnock areas.A weir at Barnsley along Cockle Creek was constructed to supply cooling water for the power station.The initial plant installed at the power station consisted of two Brown Boveri 5 MW turbo alternators with two Babock & Wilcox cross type marine water tube boilers.