WS.PEMS, developed by Weel & Sandvig, is a predictive emission monitoring system designed for gas turbines, furnaces, flares, boilers, and engines. It continuously calculates and quantifies air pollutant emissions, including CO2, CH4, NOx, SO2, CO, and UHC. Since 2005, WS.PEMS has been providing industries with a reliable solution to meet emission monitoring requirements, and since 2021 particularly those under the OGMP 2.0 framework. Based on first-principle models, WS.PEMS offers a more efficient alternative to data mining systems, requiring less training data and time while delivering robust predictions even outside the training range. This makes the system highly effective for real-time emission monitoring. WS.PEMS is designed to ensure compliance with environmental regulations and reporting frameworks, such as OGMP 2.0, and features a built-in reporting module. This module generates dynamic, customizable reports from pre-designed templates, simplifying the reporting process and ensuring transparency in emission data.