How to Get Permission to Operate (PTO) If Your Solar Installer Disappeared

Permission to operate (PTO) is your utility’s written approval to switch on a grid-connected solar system. Installers normally handle it: they submit an interconnection application, pass the local inspection, and send the utility the final paperwork. If your installer closed or stopped answering before PTO, the process stalls – but it can be restarted.

Where things usually get stuck

1. No final inspection. The city or county never signed off the permit.
2. Interconnection application incomplete. The utility is waiting for documents or signatures.
3. Meter not changed or set up. Some utilities need to install or reprogram a meter before PTO.

Step 1: Call the building department

Give your address and ask for the status of the solar permit. If the final inspection has not happened, ask what is needed to schedule it and whether a new contractor can take over the permit.

Step 2: Call your utility’s interconnection team

Search your utility’s website for “interconnection” or “solar” and ask:

• Is there an application on file for my address? What is its status?
• What is missing – signatures, inspection report, single-line diagram, fees?
• Can I, as the customer, update the contractor on the application?

Step 3: Bring in a licensed installer

Most homeowners need a licensed electrician or solar installer to finish the technical steps, fix any inspection items and resubmit paperwork. Ask for a fixed price for “taking over PTO”, and check the license with your state contractor board.

Step 4: Keep the system off until PTO arrives

Turning on early can breach your interconnection agreement. When PTO arrives, follow the startup steps in your inverter manual or ask the installer to commission the system and set up monitoring.

If you have a lease or PPA

The system owner – the lease or PPA company – is usually responsible for getting it running. Contact them first; they may have a partner installer. Ask whether your payments are paused until the system operates, and get the answer in writing.

Keep a record

Write down every call: date, name, what was said. If you were billed for a system that was not allowed to operate, those notes support a complaint to your lender, your state attorney general or the FTC.

Documents the utility may ask for

• Signed interconnection application and agreement
• Single-line electrical diagram and site plan
• Equipment specifications (inverter and panel models)
• Passed final inspection or certificate from the building department
• Proof of homeowner’s insurance in some areas

Your original contract or the installer’s portal may already contain most of these. A new installer can recreate missing drawings.

Sample email to your utility

Subject: Solar interconnection status – [address], account [number]
Hello, my solar installer, [name], has closed before my system received permission to operate. Please tell me whether there is an interconnection application for my address, its current status, what is missing, and how to change the contractor on file. Thank you, [name, phone].

Timeline expectations

Every utility and building department works differently. Ask each office for its current processing times, and ask the new installer which steps they can run at the same time. Keep the system switched off until written PTO arrives.

After you get PTO

• Switch on following the inverter manufacturer’s startup procedure, or have the installer commission it.
• Set up monitoring so you can see production from day one.
• Check your next utility bill for exports and the correct rate plan for solar customers.
• File the PTO letter with your other system documents.