The main idea of InSun is to demonstrate the reliability and quality of large scale solar thermal systems for different types of industrial process heat applications on medium and high temperature levels. Three different types of collector systems are demonstrated and compared: improved flat plate collectors for an Austrian meat factory for steam pre-heating up to 95°C, tracked concentrating Fresnel collectors for an Italian brick drying factory at 200°C, and parabolic trough collectors for milk powder production at 185°C in Spain. Each of these applications offers a high replication potential. Missing standards especially for concentrating collectors and the large uncertainty of system integration costs are the main bottlenecks for a fast system deployment in the industrial sector. Therefore, the project aims to give a significant input to the standardization process in terms of construction, integration and dimensioning of this young and innovative technology which will be supported by the foundation of a special interest group for lobbying work including key members of the relevant collector producers and research organizations. The industrial driven management board of InSun ensures a strong and continuous participation of the industrial partners involved. This management board will be responsible for the observation of the progress and quality of the demonstration projects, for the quality assurance of dissemination activities and of support actions pushing the standardization process and to lead the market deployment strategy development tasks. Three periodically organized international expert workshops with strong support from ESTIF (see attached letter of support) will include selected external experts from other ongoing research or commercial projects. Furthermore, InSun aims to contribute to the IEA Task 49 and Task 45.