Image for illustrative purposes

LUMA, the operator of Puerto Rico’s electric transmission and distribution system, announced the arrival of the largest and highest-capacity transformer in the island’s history at the Sabana Llana Transmission Center in Carolina. The new unit is expected to directly serve over 200,000 customers and indirectly benefit more than 700,000 by enhancing grid stability and reducing the risk of large-scale outages.

The $21 million project, fully funded by federal resources, includes design, construction, transportation, and installation of the transformer. It is part of LUMA’s broader collaboration with the Federal Emergency Management Agency (FEMA) to modernize Puerto Rico’s electrical infrastructure and improve system resilience across the island, from Manatí to Vieques and Culebra.

Pedro Meléndez, Chief Officer of Capital Programs and Grid Transformation at LUMA, highlighted that the transformer, approximately 14 feet tall and weighing 250 tons, represents a major logistical challenge. Its transport from San Juan Port to Sabana Llana requires careful coordination with the Department of Transportation and Public Works (DTOP) and municipal authorities to ensure road safety and minimize traffic disruptions.

Key modifications along the route include reconstruction at PR-165 Roundabout (Guaynabo), installation of North America’s largest portable folding bridge on Roosevelt Avenue, and removal of median barriers on Piñero Avenue. Installation is expected to be completed in early 2026.

Edwin González Montalvo, Secretary of DTOP, emphasized collaboration to safely manage traffic during the operation, ensuring minimal impact on commuters while supporting improvements to the island’s electric system.

Source: lumapr.com