Éolien, photovoltaïque et réseau électrique - Partie 1/2

Whole-channel inclusion: Le Réveilleur is an honest teaching channel (title sample + 3 transcripts read: All three samples lack transcripts but titles/descriptions consistently show deep, structured explainers on energy/climate/physics topics matching the channel's established teaching format.); this title passed a strict title check (sonnet) after a labelling pass.