SUDPLAN is currently developing a technical solution for Model Web/Observation Web in the Climate Change usage area. Proposed solution is based on the Open Geospatial Consortium standards, and follows the ideas expressed in SANY Sensor Service Architecture (SensorSA). SUDPLAN also continued the development of the SANY software, resulting in native SOS, SPS and 2D coverage support in ”Time Series Toolbox” framework for building sensor web applications. SUDPLAN re-uses much of the OGC SWE and SANY SensorSA functionality to: (1) configure and run the models; (2) provide the data (observations) required for model execution; (3) inform the user on model run progress and (4) access the model results. In this paper, we shall describe the SUDPLAN’s experiences with implementing of the interoperable Model Web using OGC standards, and discuss the advantages of various services from the OGC SWE suite as compared to non-SWE alternatives in the Climate Change context.