Any business striving to improve its productivity, must first establish and practise at all levels a universal method for measurement and analysis of its performance. A prerequisite for any analysis, is an appropriate definition of the system which is to be analysed. The rationale and derivation process for such system definition, is termed "modelling", and its product a "model". Deterministic Productivity Accounting (DPA), is a comparative analysis method for business performance. It is based on the premise that business performance is primarily determined by resource management, and measured in terms of productivity. By judicious partitioning and modelling of the business systems, and careful counting and accounting for every variance component, one traces the driving causes behind the apparent performance. This work combiaes modelling of power utility systems with the application of DPA, into an integrated method for performance measurement and analysis within a power utiljty, especially in a power station. / Dissertation (MEng)--University of Pretoria, 1990. / gm2014 / Industrial and Systems Engineering / unrestricted