Efficient water management in hydropower production allows us to produce electricity at the right time and manage the impacts on the environment and on stakeholders� Hydropower is a good regulating power that enables other renewable energy sources, like wind and solar power, to be added to the grid� In Sweden, a national plan for the reassessment of hydropower for modern environmental conditions, implementing the EU Water Framework directive and targets for renewable energy, has the ambition to keep production losses at a minimum and limited to 1.5 TWh.