In short
LUMA lists generator registration among its services, and it is done by calling 1-844-888-5862 or in person at a Customer Service Center. Unlike other procedures of theirs, LUMA does not list Mi LUMA Web for this one. The underlying reason to register is safety: a generator wired into the house’s installation can back-feed the grid and endanger anyone working on the line.
What is it?
It is putting on record with LUMA that there is a generator at your property. It is not an installation permit or an inspection: it is a registration. It matters because a generator wired into the house’s installation, if not properly isolated from the grid, can send current back out along the same lines the crew believes are de-energised. That is the scenario registration helps avoid, and it is the reason to do it even when nobody demands it at your door.
Who can do it?
It applies to anyone with a generator at their property. LUMA publishes no conditions on this page about capacity, generator type or installation type for registration. Bear in mind that registering is not the same as interconnecting: if what you have is a renewable energy system you want to connect to the grid with net metering, that is a different process, with its own application portal, and it is not resolved by this registration.
Requirements
- Registering it by calling 1-844-888-5862 (LUMA) or in person at a Customer Service Center. LUMA does not list Mi LUMA Web for this procedure, unlike others on the same page.Verified against the official source
Documents you need
Cost
Step by step
Step 1: Tell registering apart from interconnecting
Registering a generator is reporting that it exists. Interconnecting is something else: connecting a source — typically renewable — to the grid with net metering, and LUMA handles that through a separate application portal with its own process. If what you bought is a gasoline generator for outages, registration is what applies to you.
Step 2: Have the account and the generator details ready
The account number and service address identify the property. The generator details — make, model, capacity — do not appear as a published requirement, but having them in front of you avoids a second call.
Step 3: Call 1-844-888-5862 or go to a Customer Service Center
Those are the two routes LUMA publishes for this service. Note that Mi LUMA Web is not among them, even though it is for trimming and streetlights; do not assume you can resolve it online.
Step 4: Check that the installation is isolated from the grid
This is not part of the registration, but it is the reason registration exists. A generator wired into the house’s installation needs a transfer means that prevents current from flowing out to the grid. If your generator is wired into the house circuits and you do not know whether it has that isolation, that is a question for a licensed electrician, not for LUMA.
Where to do it
By calling 1-844-888-5862 (LUMA) or in person at any LUMA Customer Service Center. For interconnection and net metering of renewable sources, LUMA operates a separate application portal.
How long it takes
What to do if something goes wrong
If what you have is solar panels and batteries and you want to connect them to the grid, this is not the procedure: LUMA handles interconnection and net metering through its own application portal. If your generator is portable and you connect appliances to it with extension cords, without wiring it into the house installation, the back-feed scenario does not arise the same way; even so, registration is the service LUMA publishes for generators. If you want to do it online, bear in mind LUMA does not list Mi LUMA Web for this procedure. LUMA publishes neither cost nor timeframe for registration on this page. PRFácil does not register generators or handle procedures with LUMA.
Common mistakes
- Not registering the generator because you did not know LUMA asks for it.
- Looking for the procedure in Mi LUMA Web, which LUMA does not list for this service.
- Confusing generator registration with renewable interconnection, which goes through a different portal.
- Wiring a generator into the house installation without a transfer means isolating it from the grid.
- Calling without the account number and service address at hand.
Frequently asked questions
Is registering mandatory?
LUMA lists generator registration among its services and publishes how to do it. On this page it publishes no penalty for not doing it, but the underlying reason is safety for whoever works on the line.
Can I register online?
For this procedure LUMA publishes the phone number 1-844-888-5862 and the Customer Service Centers. It does not list Mi LUMA Web, even though it does for other services on the same page.
What if what I have is solar panels?
That is interconnection and net metering, which LUMA handles as a different process with its own application portal. Generator registration does not replace it.
Official sources
These are the government pages this guide is based on.
- LUMA Energy
LUMA
lumapr.com
Last verified
August 13, 2026
MiPRFácil is an independent informational website and is not affiliated with, endorsed by, or operated by the Government of Puerto Rico or any government agency.
MiPRFácil does not submit applications on your behalf.
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