Greece’s highest administrative court has struck down approvals for a 185 MW solar development that had been divided into scores of smaller projects, potentially tightening permitting requirements across the country’s utility-scale photovoltaic pipeline.
The Council of State cancelled 186 preliminary producer licences and 25 work approvals associated with the project near Pineios Lake.
The court found that authorities had failed to examine whether the nominally separate installations effectively formed one investment under common ownership.
The ruling targets a model under which large developments could be divided into sub-1 MW units and potentially qualify for simplified permitting treatment.
Its significance extends beyond the project itself.
Developers using clustered structures may now face more comprehensive environmental and planning review if common ownership, location and technical design suggest the assets are functionally one development.
That could slow parts of Greece’s solar pipeline and increase permitting costs.
It may also affect projects paired with batteries where generation and storage assets have been structured through multiple special-purpose companies.
The ruling comes as Greece is already grappling with grid congestion, renewable curtailment and weakening daytime power prices.
That means permitting risk is being added to an increasingly demanding commercial environment.
For investors, the message is clear: regulatory structure will matter as much as project size.
Large solar portfolios can no longer assume that segmentation into smaller units will preserve simpler approval pathways.
