On 17 July 2001, the last pot of the Noroural Smelter Phase II Project was put into operation. This expansion consisted of the integration of 54 CA180/1 cells into the existing system and the roll out of 6 VAW CA180/2 cells. These cells are the result of extensive development work by VAW ATG's modelling and engineering team over the last few years. The pots commissioned during Norboural Phase I are operating well and achieving world-class results. Since Noroural was designed as a modular smelter from the beginning, the owners, CVC, decided to add a second module in early 2000. This paper will deal with the Phase II Project, highlighting the concurrent engineering used and the introduction of new technology. A review and comparison of the theoretical and actual results will also be given.