The ICEWIND project has produced results that support the integration of large amounts of wind energy in the Nordic the power system, where we move towards offshore waters and regions with cold climate. New high-resolution meteorological models were developed and used to create a wind and an icing atlas for Iceland, an icing atlas of Sweden as well as planning tools for offshore operations. A new tool was developed for analysis of the Icelandic power system and was used to analyse the effect of integrating a wind farm in this system with large amount of hydro power and a constant high demand. The variability of the Nordic power system with high amount of wind energy was investigated and the impact of forecasting errors on balancing needs was estimated. The new models for estimation of power loss from icing on wind turbines has contributed to strengthen the strong position of the Nordic countries in this field.