Many initiatives led to rising numbers of decentralized renewable energy generators. Although this tendency is positive concerning the targeted energy transition and for reaching the EU’s valuable 2030 climate and energy goals, the thousands of different decentralized power supply units challenge grid operators. The volatility of renewable energy generation and the need to balance power generation and demand within grids head to an oxymoron: although wind blows and sun shines, grid operators have to reactively curtail these plants from the grid to guarantee grid safety. Current control room systems are not made for a proactive and exact management and control of single assets – limiting the share of renewable energies in our power mix to a very low level. To fully exploit the potential of clean and green energy, energy & meteo systems developed FuturePowerFlow, an algorithm-based, modular system using weather forecasts, locations of renewable energy plants, data on grid infrastructure, historic demand data and operating status of plants to predict power flows in the grid based on generation and consumption for the next 48h in very high timeresolution. Instead of reacting just demand driven, FuturePowerFlow enables grid operators to proactively plan and manage the integration of decentralized renewable assets into their grid. FuturePowerFlow is the perfect solution for transmission system operators and distribution system operators to manage their grids efficiently, directly targeting at and fulfilling their user needs.