The distribution company is executing substation modernization projects in San Miguel and La Unión, benefiting nearly 38,000 users with a more reliable and higher-quality service.

AES EEO strengthens electrical infrastructure in eastern El Salvador to meet growing demand

September 1, 2026

As part of its commitment to strengthening the national electrical infrastructure, AES EEO is executing two major power upgrade projects in the eastern region of the country, with the objective of increasing capacity to meet growing energy demand and improving service quality for thousands of families, businesses, and industries.

These projects directly benefit 37,903 users in the departments of San Miguel and La Unión, driving growth in both economic development hubs of eastern El Salvador.

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Un técnico liniero equipado con casco blanco, arnés de seguridad y gafas oscuras realiza labores de mantenimiento o instalación en lo alto de un poste de luz de alta tensión. El poste de hormigón cuenta con una estructura metálica llena de aislantes de porcelana, cables eléctricos y cuerdas de sujeción. Al fondo se observa un cielo despejado con ligeras nubes.

 

Greater capacity and stability for San Miguel

One of the most relevant projects will be expanding the capacity of the Moncagua Substation and primary electrical distribution networks located in the department of San Miguel, where AES EEO will modernize the existing power infrastructure.

The work includes installing modern electrical equipment and more advanced technology. These upgrades will allow the company to more efficiently serve the sustained growth in electrical demand across the urban and rural areas of San Miguel and its surroundings.

With this intervention, 15,242 users will benefit from a more stable and reliable supply, prepared to respond to the current and future energy needs of the territory.

Modernization in Santa Rosa de Lima

Likewise, the electricity distribution company executed a capacity expansion project at the Santa Rosa de Lima Substation in the department of La Unión.

The work included replacing the main transformer and relocating voltage regulators—actions needed to manage peak energy demand during heatwaves in the sector.

The modernization will enhance service continuity and quality for 22,661 users in Santa Rosa de Lima and nearby areas, while creating the necessary conditions to support the region's economic and population growth.

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En primer plano y de espaldas, un supervisor con chaleco de alta visibilidad y casco blanco observa a un técnico liniero ubicado en la parte superior de un poste de luz de alta tensión. El liniero realiza trabajos en los cables y estructuras de soporte. Al fondo se observa vegetación verde, otros postes eléctricos y un cielo claro de día.

 

Commitment to the country’s development

These investments are part of AES's permanent strategy to strengthen the electrical distribution grid and ensure that communities have a modern, resilient infrastructure capable of responding to growing energy demand.

Through expansion, modernization, and maintenance projects, AES EEO continues to promote solutions that contribute to the sustainable development of the territories where they operate—delivering safe, reliable, and high-quality energy to thousands of Salvadorans while building the electrical distribution grid the country needs.

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En primer plano y desenfocado, un trabajador con casco blanco permanece sobre una cesta elevadora. Al fondo, un equipo de linieros realiza labores de mantenimiento en postes de luz a lo largo del tendido eléctrico. Varios técnicos trabajan arriba en las estructuras y otros en tierra junto a una carretera pavimentada, rodeados de vegetación densa y árboles bajo un día soleado.