CerTa Veritas originated in 2016 from the former PTM group of KEMA. This “Process Technology, Performance Testing, and Measurement” group of KEMA has more than 30 years’ experience in conducting performance tests (heat rate tests) with own calibrated instrumentation and in independent third party witnessing of such tests. Our customers can also opt for an on-line performance assessment using our dedicated, flexible ThermoWare-based performance monitoring system, that keeps track of the performance of the plant and its components, and presents the information in informative, clear (and user-configurable) process mimics and historic trends. To test whether a power plant can provide an adequate reaction on a deviation in grid frequency (as is required by the national grid code), we offer a frequency response test service. Furthermore, the group provides high-level process simulation services with respect to energy conversion systems, both steady-state (flow sheet calculations, mass, and energy balances) as well as the dynamic behavior of power plants. In addition, it analyzes large process data sets from power plants with a dedicated, highly efficient data-analysis tool MagicCorr to quickly identify performance degradation and find correlations between process variables to learn from the customer’s process history in order to improve future operation. CerTa Veritas continues to offer as independent, dedicated company these high-level performance-related services for thermal power plants formerly offered by KEMA. The deep knowledge of power plant processes and performance assessments also makes CerTa Veritas an appropriate consultant in performance-related arbitrage matters.