The vast majority of power lines in France are overhead. RTE overhead lines: 100000 km RTE underground lines: 5400 km https://www.rte-france.com/fr/document/

The vast majority of power lines in France are overhead. RTE overhead lines: 100000 km RTE underground lines: 5400 km https://www.rte-france.com/fr/document/statistiques-reseaux-2016 https://www.rte-france.com/fr/document/statistiques-reseaux-... If you are intending to distinguish between distribution and transmission, the lines in question in California are transmission lines, not distribution lines.