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Solar power expansion: Potential along federal highways is 50 gigawatts

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Published: November 20th, 2024,
Last updated: May 28th, 2025

Solar park on the A4 highway.

Photovoltaic systems with an output of 50 gigawatts could be installed along German freeways and federal highways. This is the result of a potential analysis presented on Tuesday by the Federal Highway Research Institute (BASt) on behalf of the Federal Ministry for Digital and Transport Affairs (BMDV). It covers a total of around 250,000 fundamentally suitable areas.

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Photovoltaik