The number of PV power plants is rising rapidly. If they are to be effectively integrated in our energy system, power grids need to adapt. The rise of PV power plants, often relatively small in scale, increases the distribution of energy generation. Meanwhile, the weather-dependent nature of solar power makes accurate forecasting essential - in terms of weather and climate but also energy generation and demand. In this session speakers will discuss how renewable energy generation and grid operation can be aligned to function as a single reliable and resilient system.