PI-Berlin will lead and coordinate WP7 as well as task 7.2 and task 7.3. PI-Berlin will conduct extensive laboratory testing on the modules in order to prove the quality, i.e. mainly the durability and the reliability of the products. These two factors mainly govern the system performance over a long period of time. The work will be focused on Hot Spot, PID and LID analysis. For that we will optimize our characterization tools to reduce the measurement uncertainty (T7.2). Due to our well-equipped infrastructure, the tests of the final module designs prior to outdoor installation in WP6 in will be done at our lab (T7.3). The module testing results gives a feedback to the partners of WP5 (module development and WP8 (cost and life cycle analyses).