Spain Could Have Nearly 7 Gigawatts of Offshore Solar Power - CleanTechnica

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We’ve written for years about how much solar power potential countries have, how much onshore and offshore wind power potential countries have, and how much solar power growth is occurring in countries around the world — but what about offshore solar power potential? That was never really part of the equation. However, as floating solar PV has proven itself and grown to significant levels, some are having the sense to evaluate offshore solar power potential.

In one of the sunnier countries of Europe, Spain, researchers have tried to quantify how much solar PV power could be built offshore. (Admittedly, the country is probably not feeling very sunny or optimistic today, given that their team just tied Cape Verde 0–0 in the World Cup, but that’s another story.)

Researchers from the University of A Coruña determined that 4.45 GW to 6.48 GW of floating offshore solar PV power capacity could be developed off the coast of Spain. That much solar power capacity could provide the country with 6.2% to 9% of the country’s electricity demand based on September 2025 data.