A fire was reported at the Sabana Llana substation. The report said the incident took several generation units out of service and left more than 200,000 customers without electricity. The cause, the extent of damage and whether anyone was injured were not...
Energy incidents: Puerto Rico
Incidents recorded in Puerto Rico across battery storage, solar, wind, grid infrastructure and data centres.
4 published entries. Newest first. Search and filter these in the register.
Every entry
Newest incident first. Search them, or narrow them by country, year or severity. Each entry is free to read, with what happened and its sources; the record behind it adds the cause where it is established, the part that failed, the downtime and the loss.
A report dated 24 September 2026 said more than 217,000 customers across several municipalities in Puerto Rico were without power after an explosion and fire at a LUMA Energy substation in Carolina. The report said the outages affected multiple areas. It did...
In April 2025, at around midday local time, a transmission system failure on the Puerto Rico transmission system, operated by LUMA Energy and owned by the Puerto Rico Electric Power Authority, led to a loss of supply affecting more than 1.4 million people...
See what failed, why, and what it cost
The record behind each entry: the manufacturer, integrator and operator, root cause, failure mode, downtime, losses and every source.
A fire, described by the island's governor as an explosion, broke out in a transformer at the Monacillos substation in Río Piedras, San Juan, Puerto Rico. The incident caused major blackouts across the island, with utility operator LUMA Energy reporting that...
Get the next incident in Puerto Rico by email
One email when a new incident is reported, at most two a day, plus a Monday digest. Free, no account needed, unsubscribe in one click.
We will also email you about the register's paid records and plans, at most once a week and three times in all. You can stop these at any time. By subscribing you agree to the privacy policy.