Where to get solar power charizard?

You gain solar energy in Charizard through maximum raids. The only way to achieve this is through g-max charizard, so if you want to use it in the ranking you have to breed it to pass solar energy to a charizard that can't gigantamax. This is a page about Pokémon Solar Energy's ability, its effect, as well as a list of Pokémon that have this ability. In Explorers of Time, Darkness, and Sky, solar energy increases Pokémon's special attack by one level in good weather.

In Pokémon Super Mystery Dungeon, solar energy greatly enhances Pokémon's special attack when it's sunny or in strong sunlight.