Part of Gers (Occitanie), Marciac counted 1,213 inhabitants as of the latest census.
OpenPVMapper's latest release puts Marciac at 1.3 MWp of estimated rooftop PV capacity over 54 installations — 26th in Gers out of 461 communes with detections. The detections span 2019–2025. click here to see it on the map.
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