In the web series Pokémon Generations, which depicts key moments from the core series games, Elesa serves as the Gym Leader of Nimbasa City in the Unova region, specializing in Electric-type Pokémon. Her primary role in this storyline is as a defender of the region, appearing during the climactic conflict at N's Castle. As Team Plasma launches its assault on the Unova region, Elesa mobilizes alongside her fellow Gym Leaders to confront the threat. She is seen joining the other leaders outside N's Castle, where they engage in battle against the many Team Plasma Grunts to prevent them from achieving their goals. Her actions during this conflict reaffirm her duty as a Guardian of Unova, demonstrating a commitment to regional security and a unified resistance against organized criminal forces.

In this appearance, Elesa commands a Zebstrika, which she uses to fight off the opposing forces directly. Her Pokémon demonstrates its power by using the move Discharge, a high-voltage electric attack that disperses multiple opponents in a single, precise strike, showcasing her tactical mastery over Electric-type techniques. The narrative highlights her alliance with her peers to neutralize the threat, acting not as a solitary figure but as part of a coordinated front to protect the region.

Beyond the setting of N's Castle, the events of Pokémon Generations do not provide further details about other storylines, personal development, or additional appearances for Elesa beyond this pivotal battle. Her background, motivations, personality, and key relationships from other media are not explored within this specific series, which instead focuses on her direct and immediate contribution to the region's defense. Her known role is therefore that of a capable and dedicated Gym Leader who answers the call to protect Unova when it is most needed, using her significant abilities with Electric-type Pokémon to stand against Team Plasma's aggression.