Castres, in Tarn (Occitanie), counted 42,505 inhabitants as of the latest census.
OpenPVMapper has identified 714 rooftop PV installations in Castres, totalling 4.3 MWp — the 5th commune in Tarn by installed capacity, out of 312 communes with detections. Detections span 2025–2025. To explore every detection in Castres, click here to see it on the map.
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