By 2045, a KfW/PwC study estimates that €535 billion will be needed to modernize electricity and gas grids and expand district heating—two thirds of it by 2035. However, grid operators can cover only around one third through their own resources and subsidies; a financing gap of €346 billion remains. This makes it all the more important to keep existing grid infrastructure in operation for as long and as safely as possible through systematic maintenance. Our blueprints provide proven, practical concepts that enable grid operators to structure maintenance and inspection obligations with GS-Service, instead of investing scarce capital solely in new builds.