ABSTRACT
The development and use of condensation thermal power plants is characterized today by great complexity, regardless of whether a technological scheme or built-in equipment is observed. Based on this, an interaction matrix was developed that was the basis for further modeling after calculating the extent of the change of reliability of the affected after a certain inter-failure of affecting components. The proposed modified method for assessment of optimal reliability of the system of condensation thermal power plant provides a good basis for further work on its development and improvement of the accuracy of the assessed values, with the introduction of technical diagnostics and the modern information and management system. On the other hand, large energy plants with new or improved solutions can be built only in case they have a high degree of safety and reliability and when they fully meet the applicable environmental criteria.
