EERSSA, or Empresa Eléctrica Regional del Sur S.A., is a pivotal electricity provider in the southern region of Ecuador, dedicated to delivering safe and reliable energy solutions. With a mission encapsulated in the phrase ¡La energía somos todos! (We are all energy!), EERSSA emphasizes community involvement and access to electrical services. The company offers a wide array of programs and services designed for both residential and commercial clients, including energy consumption monitoring, an electronic document system, and a virtual office for easy account management.

EERSSA is actively engaged in community development through initiatives such as neighborhood lighting projects aimed at enhancing public safety and boosting local infrastructure. Their commitment to transparency is reflected in their various informational resources and channels for citizen participation. By fostering partnerships with local institutions and organizations, EERSSA continually strives to improve energy accessibility and support the overall well-being of the communities it serves, ensuring that every resident can benefit from reliable energy sources.