Taking the Panels Down: Decommissioning a Claremont System

Solar systems come down for ordinary reasons. A roof needs replacing. A lease ends and the provider retrieves the equipment. Hardware has reached the end of its useful life and is not worth repairing. A remodel changes the roof it sits on. None of those are failures; they are the back half of a service life.

What surprises people is that removal is a permitted, documented, multi-party project rather than an afternoon with a ladder. Treating it as the latter is how homeowners end up with a leaking roof, a live conductor in a conduit nobody labelled, and a utility record that says a system is still connected.

Temporary removal versus permanent decommissioning

These are different projects and it matters which one you are doing.

TEMPORARY REMOVAL, usually for roof work, means the array comes off, the roof is replaced, and the same or replacement equipment goes back on. The system continues to exist and its interconnection continues. The main risks are physical: damage to panels in handling, and penetrations redone in the reinstallation. That sequencing is the subject of the roof timing guide.

PERMANENT DECOMMISSIONING means the system stops existing. Equipment leaves, electrical work is undone, and the arrangements with the utility and with any provider are terminated. That has a documentary tail the temporary version does not.

The electrical work is the serious part

An array is a generating source. Panels produce voltage whenever light falls on them, whether or not anything is connected to them, which is not how the rest of a house behaves and is why this is not homeowner work.

A proper decommissioning involves disconnecting at the appropriate points, de-energising, removing conductors and conduit or making them safe and clearly identified, removing or making safe any dedicated breakers and disconnects, and dealing with any subpanel installed to serve the system. Leaving abandoned wiring in a wall or a conduit stub on a roof creates a hazard for whoever works on the house next and a finding for whoever inspects it.

This is licensed contractor work. Ask the City of Claremont building department what permits and inspections apply to removal, because it is electrical work and the requirements are a matter for the jurisdiction, not for an assumption.

The roof gets made good, deliberately

Every mount is a penetration, and removing the mount does not close it. The roof has to be properly repaired at each point, using a method appropriate to the covering, and that is roofing work rather than solar work.

The honest way to handle this is to have a roofer involved, either doing the repairs or inspecting them. On a roof already near replacement, the sensible move is usually to combine removal with re-roofing so the penetrations disappear entirely into new material. The consequences of doing this badly are set out in the penetrations guide, and they are the sort that show up as attic staining a year later.

Expect the roof beneath a long-installed array to look different from the roof around it, and expect debris and sometimes nesting material underneath. That is normal and is worth inspecting rather than covering back up.

Who has to be told

Three parties, at least, and none of them find out on their own.

The UTILITY, which holds an interconnection agreement for a generating facility at the address. Removing the system without notifying them leaves a record that does not match reality. Ask the utility what its process for disconnection or termination requires and follow it.

The PROVIDER, if the equipment is third-party owned. On a lease or PPA the equipment is not the homeowner's to remove at all, and arranging removal independently is a contract breach as well as a practical mistake. Removal in that situation runs through the provider under the end-of-term or termination provisions described in the end-of-term guide.

The BUILDING DEPARTMENT, through whatever permit and inspection process applies. And separately, worth checking: any lender with a lien on financed equipment, and any insurer whose policy reflects the system.

Where the equipment goes

Panels and inverters are electronic equipment, and disposal is regulated rather than discretionary. Ask the removing contractor what their disposal or recycling pathway is and expect a specific answer, and ask the appropriate authorities about current requirements for the material in question rather than assuming a landfill is acceptable.

Where equipment retains value, resale or reuse is sometimes an option. Where it does not, proper recycling is the responsible path and increasingly the required one.

What removal does to a later sale

Two things, and documentation resolves both.

A DISCLOSURE HISTORY: a home that had solar and no longer does invites the question of why. A documented removal, with permits, roof repairs and a clean utility termination, answers it. An undocumented one leaves the buyer to imagine reasons, and buyers imagine badly.

A PHYSICAL RECORD on the roof itself: patched penetrations, a section of roof that weathered differently, an abandoned conduit run. An inspector will find all of it. A seller who can produce the removal paperwork turns a suspicious finding into an ordinary maintenance record.

Keep the removal documents with the original installation file. The whole history of the system, including its end, is what a future buyer's diligence will ask for.

For the wider map, return to the solar guide. Permit questions belong with the City of Claremont building department, interconnection with the utility, and equipment ownership questions with the provider. Anthony Grynchal has been licensed in California since November 2009.