LUMA energizes six new transformers with $115 million in federal DOE funds

LUMA Energy and the federal Department of Energy (DOE) confirmed on August 13 that they have already moved more than $115 million in federal funds into concrete grid projects, including the installation and energization of six new transformers at the Caguas, Monacillo, Fajardo, Bayamón and Mora substations, a package of work that directly reaches about 348,000 customers ¹. It's the latest update on a funding stream that started in November 2025 and that, according to LUMA, is already showing up as finished work, not just promises ¹².

The context matters here. These funds are part of the Puerto Rico Energy Resilience Fund (PR-ERF), a program Congress created in 2023 that DOE's Office of Electricity administers with the specific goal of reducing the frequency and duration of outages across the entire island ³. Under the federal grant known as "Electric Grid Resilience Stabilization" (DEGD0001048), DOE has already redirected $368.7 million to the Puerto Rico Electric Power Authority for LUMA and Genera PR to execute ten system-level projects ³. The $115 million announced this week is the slice that has already turned into verifiable field work.

By the numbers: the six new transformers replace equipment that averaged 55 years of use, well past its intended design life ¹². Beyond the substations, LUMA restored six transmission lines that had been out of service across different regions of the island — some down since Hurricane María — benefiting more than 137,000 additional customers ¹. The company also installed 135 grid automation devices that allow faster fault detection and isolation, and it is acquiring LiDAR equipment and aerial inspection systems to monitor lines and poles without relying solely on ground crews ¹. The package also includes modernization of the operational radio network, fiber optic repairs, and microwave links that dispatchers use to coordinate emergency response ¹. "Each project represents a concrete improvement for the electrical system and the customers we serve," said Doriel Pagán, LUMA's senior vice president of Federal Funds, while CEO Janisse Quiñones stressed that transforming the system requires "collaboration and shared commitment" among DOE, LUMA and Genera PR ¹².

What it means for you

If you live in Caguas, Monacillo, Fajardo, Bayamón or Mora, or in the areas fed by those substations, the transformer swap should translate into fewer interruptions caused by aging equipment failing under heavy load, especially during the hottest months of peak air-conditioning demand. The automation added through the 135 new devices also means that when a fault occurs, LUMA can isolate the affected segment without shutting down entire zones while it locates the problem, which in theory shortens restoration time for customers not directly at the failure point. That said, this doesn't fix the system's fragility overnight: just weeks earlier, a fire at a 230 kV substation left more than 200,000 customers without service, and Genera PR's generation reserve has dipped below comfortable levels several times this summer. The improvement is real, but it's one project among many still pending.

How to do it / Checklist

1. Check whether your area is among those benefiting: go to lumapr.com and look up the substation announcement to confirm whether your zip code falls within Caguas, Monacillo, Fajardo, Bayamón or Mora.
2. Sign up for outage alerts through the LUMA app or at lumapr.com/reportar-interrupcion to know in real time whether a problem is local or system-wide.
3. If you notice deteriorated equipment (a transformer, pole, or line) near you, report it directly through LUMA's line (1-844-888-5862) instead of waiting for it to fail.
4. Keep evidence (photos, receipts for damaged appliances) if you go through an outage, in case you file a damage claim with LUMA.
5. Follow DOE's quarterly updates on the PR-ERF at energy.gov to track how much of the total $368.7 million has been executed versus what's still pending.

What's next

Of the $368.7 million DOE committed under grant DEGD0001048, a significant portion still has to turn into finished work, so more announcements of restored substations and lines are expected in the coming months ³. LUMA said its acquisition of LiDAR equipment and aerial inspection systems is still underway, which should eventually speed up detection of at-risk poles and lines before they fail. The open question — one the Fiscal Oversight Board and the Energy Bureau (NEPR) have raised in recent hearings — is whether the pace of these federal projects is enough to get ahead of deterioration across the rest of the grid that still has no funding assigned to it.