The Federal Network Agency in Germany has published an updated overview of the current status and expected further development of the electricity grid, within the approval procedures for grid construction under its authority. To meet the requirements of the energy transition, a significant grid expansion is needed.
Specifically, an expansion of about 16,800 kilometers of high-voltage transmission lines is required, of which the Federal Network Agency is responsible for approximately 9,600 kilometers.
Of this amount, around 4,650 kilometers have completed the full approval process. This is a good result, considering that initially 4,400 kilometers were planned for 2025. By approving a transmission line (through a planning decision – Planfeststellungsbeschluss), its exact route is determined, and the respective transmission system operator is authorized to begin construction work.
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For planning grid expansion, transmission system operators use the so-called scenario framework (Szenariorahmen), which defines the anticipated requirements for future electricity generation and consumption in Germany. This framework is approved by the Federal Network Agency and serves as the basis for preparing the Grid Development Plan (Netzentwicklungsplan – NEP).
The scenarios indicate different development paths focused on decarbonization and allow for more precise assessment and decision-making regarding necessary grid expansions.
Plans are developed according to the NOVA principle: first, opportunities to optimize existing lines are explored; then the grid is reinforced; and only afterward are new transmission lines built. This methodology ensures that every investment in the grid is efficient and purposefully aimed at ensuring a reliable electricity supply.
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