The intervention, which requires a scheduled outage, is part of ongoing investment efforts to modernize the system and reduce breakdowns in the long term
San Juan, PR – March 2, 2026 – LUMA announced that on March 4 it will carry out an essential intervention on line 5,100 in Old San Juan, as part of the efforts to modernize and strengthen the electric grid. The works, which will last throughout the day, will address a breakdown identified in this historic area and will allow progress in the comprehensive improvement of the infrastructure that serves this important tourism and economic sector of Puerto Rico. More than 2,000 customers will benefit from this work.
To complete these tasks safely, it will be necessary to interrupt the electrical service for the customers and businesses of Old San Juan that are supplied. The magnitude of the project responds to the need to carry out complex repairs that require a controlled and safe environment for workers and the community.
The activity will have the coordinated participation of the Underground, Maintenance and Construction teams, who will take advantage of the intervention to attend to both aerial and underground components. This comprehensive approach helps improve system reliability and reduce the frequency of future breakdowns.
“We recognize that Old San Juan is an area of great cultural, tourist and economic relevance for Puerto Rico. Continuing to invest in your electrical infrastructure is essential. Although these works entail temporary interruptions, they represent fundamental steps to strengthen the network, improve its resilience, and move towards a more reliable service for all customers,” said Juan Oyola, regional manager of Lines in the San Juan region, of LUMA.
LUMA will continue to evaluate and gather additional technical information as planning progresses, and will share updates through its official platforms in order to keep residents, businesses, and visitors to the area informed.



About LUMA
LUMA is a Puerto Rican company that, since June 1, 2021, operates and manages the electric power transmission and distribution system in Puerto Rico. LUMA is a company driven by a mission to transform the electrical transmission and distribution system to provide all Puerto Ricans with the reliable, resilient, cleaner, and affordable electrical service they deserve. As a customer-centric company, LUMA’s entire workforce of over 4,000 employees is focused on safely delivering an exceptional customer service experience to its nearly 1.5 million customers.