In tivities regarded: > technical measures: modernization of plants by replac ing machinery and components with more efficient so lutions, introducing remote-control systems for plant management, etc., > optimization of maintenance activities: identification of the best time for the maintenance and overhaul of machinery, correct maintenance and cleaning of me chanical parts, etc., and > increases in process efficiency: identification of the op timal times and methods for maximizing plant efficiency, implementation of programs of operating excellence (e.g., the EPRI Nuclear Program), improvement of the distribution of the production load by making the most efficient units work, optimization of cooling systems, etc.