A Step Ahead Through Consideration of Grid Expansion

July 11, 2024

Developers of wind, solar, and storage projects often face difficulties finding an available grid connection point (GCP). The reason for this is often locally overloaded grid sections. Distant GCPs can significantly increase project costs and lead to unprofitability. In this context, it is important to consider future grid expansion right from the start of project development.

Distribution network operators with over 100,000 connected customers are required to disclose specific plans for expanding the grid infrastructure (e.g., line reinforcement, new substations) every two years. These plans detail the type of measures, the status of planning and approval processes, costs, and the targeted commissioning date. The planning horizon usually extends to 2045, the year of Germany’s legally mandated climate neutrality. Measures are defined based on existing grid bottlenecks and the projected changes in load flows. This is always based on the so-called “NOVA” principle (grid optimization before reinforcement and expansion).

In the context of project development, a detailed understanding of grid expansion helps assess whether and when a GCP will be available. This is especially relevant since a binding response from grid operators can often take weeks or months. Valuable time and resources should therefore be invested in projects where higher chances of securing a GCP can be estimated from the outset. Project developers should definitely consider grid expansion planning in the early planning phase. dvlp.energy has developed software for evaluating grid expansion plans, making measures visible cartographically for area assessment. This ensures that users of dvlp.energy are always up to date with grid expansion planning and thus a step ahead.