In the ultimate Club Capcom journal there was an Question Dr. Mild bit where he mentioned regarding the robotic master energy units, most of them do make the most of “photo voltaic Strength” in some way and that Mega Male’s charge shot discharges condensed photo voltaic Vitality. Mega Man X: https://finnexpet.blogdemls.com/15715005/helping-the-others-realize-the-advantages-of-mega-man