The Sunny SensorBox enables non-stop analysis of generator performance: it is installed directly on to the PV modules and measures solar irradiation and temperature. In combination with Sunny WebBox and Sunny Portal, it provides a continuous target-actual comparison of plant performance. This ensures easy detection of clouding, contamination or a creeping under-performance of the generator. Extra sensor interfaces for optional measurement of ambient temperature or wind speed will make your evaluations even more accurate.