With 3,394,567 inhabitants as of 2021 (9th nationally) spread across 27,455 km² (11th by area), Bretagne lies on the northwestern peninsula of France. Its economy was estimated at €126,549 million in GDP in 2024 (9th nationally). Rennes, Brest and Quimper rank among its largest cities.
The latest OpenPVMapper release has identified 477.7 MWp of rooftop PV across 49 222 installations in Bretagne, making it the 10th région in France by installed capacity. The most equipped départements were Ille-et-Vilaine, Morbihan and Côtes-d'Armor. Detections span 2018–2025. To explore every detection in Bretagne, click here to see it on the map.
P1 < 9 kWp · P2 9–36 kWp · P3 36–100 kWp · P4 100–250 kWp · P5 > 250 kWp
Darker = larger share of Bretagne’s installed capacity.
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