Swiss transmission grid operator Swissgrid presents the «Strategic Grid 2025» report. It demonstrates which grid development projects Swissgrid considers necessary over the next ten years in order to ensure security of supply and to prepare the grid for the future of energy. In general, fewer lines must be converted, expanded or built than originally planned in earlier grid planning. The investments required over the next ten years will total around CHF 2.5 billion. This is significantly less than previously estimated. Of this, CHF 1 billion is to be used for the replacement and maintenance of existing infrastructures.