Porter Ranch, CA · February 2025 · LADWP / LADBS

Porter Ranch: the part was covered, the work was not.

Year six of a twelve-year warranty. The manufacturer shipped a new inverter and paid for none of the labor.

Written by the Cali Energy project team · California contractor license 1032379 · Updated September 2026

Equipment warranties and labor reimbursement run on separate clocks, and owners usually learn this at the moment a part fails. On this Porter Ranch system the inverter was replaced under the manufacturer's warranty more than five years after installation — the hardware at no cost, the labor no longer reimbursed, because that part of the program had expired. Cali Energy handled the claim, fitted the replacement and restored the monitoring.

At a glance

Age at failure

More than five years

Hardware

Replaced under manufacturer warranty

Labor

No longer reimbursed by the manufacturer

Paid by

The household, at a set service rate

Monitoring

Restored after the swap

Utility / AHJ

LADWP / LADBS

The story

An inverter failed on a system in its sixth year. The claim was straightforward, the manufacturer shipped a replacement, and the interesting part is what the household paid for.

Solar warranties are usually quoted as a single number — twelve years on the inverter, twenty-five on the modules — and that number describes the hardware. Inside it there is a second, shorter clock that almost nobody mentions at the point of sale: the manufacturer's labor reimbursement, which pays the installer for the work of removing the failed unit and fitting the new one.

That reimbursement runs for a fixed period, commonly five years, and it is not the same as the hardware term. Past it the part still arrives free and somebody still has to spend a morning on a ladder, and that morning is billed.

Here the unit was outside the labor window. The household was told the number before anything was scheduled, agreed to it, and the work went ahead: old inverter off, replacement fitted, system restarted, monitoring re-registered so the production history continued rather than starting over.

Two things are worth taking from this.

The first is a question to ask before signing: how long is the labor covered, and by whom? Some installers add their own workmanship warranty on top of the manufacturer's program, and the length of that is a real difference between two quotes that otherwise look identical.

The second is about expectations over the life of a system. Twenty-five years is long enough that something will be replaced. An inverter is the usual part to go, because it does the constant work of conversion. A system that has had one inverter replaced in its sixth year is not a bad system — it is a normal one, being maintained by somebody who is still around to maintain it.

The replacement went in on the twenty-seventh of February and the monitoring was reporting again the next morning with the production history intact. The array went back to work in its sixth year, and the household now knows exactly which half of its warranty still runs.

Cali Energy handled the warranty claim, fitted the replacement inverter and restored the monitoring on this Porter Ranch system.

How it ran

A week from claim to a running system, and the only conversation that needed having was about which half of the warranty still applied.

What we did

• Opened the manufacturer claim and tracked the replacement to our office.
• Told the household the labor position before scheduling anything.
• Fitted the replacement and restarted the system the same week.
• Re-registered the monitoring so the history carried over instead of resetting.

System specifications

Is your project like this one?

• Your inverter has failed and you are being quoted for labor.
• Your warranty is quoted as one number and you want to know what it covers.
• Your system is past its fifth year.
• You are comparing two quotes with identical equipment.

Cali Energy in Porter Ranch

Frequently asked questions

Does a solar warranty cover the cost of replacing a part?

Not always. The hardware warranty covers the part itself; a separate labor reimbursement from the manufacturer covers the work, and it usually runs for a shorter period — commonly five years. After that the part is free and the work is billed.

How long do solar inverters last?

Most carry a warranty of around twelve years and many run longer, but the inverter is the component that most often gets replaced during the life of an array, because it works continuously converting power.

What should I ask about warranty before signing?

Two questions: how long the equipment is covered, and how long the labor is covered and by whom. An installer's own workmanship warranty sitting on top of the manufacturer's program is a genuine difference between quotes.

Will I lose my production history if the inverter is replaced?

Not if the new unit is registered against the existing monitoring site. Done properly, the history continues; done carelessly, the system appears in the app as if it were installed the day of the swap.

Does Cali Energy service systems it installed years ago in Porter Ranch?

Yes, including warranty claims on equipment that is no longer sold. Porter Ranch systems permit through LADBS and interconnect through LADWP, and a service visit needs neither of those — which is why an array installed years ago can still be looked after by the people who put it up.

What this would look like on your roof

Related

• Three years later, the inverter stopped reporting Chatsworth, CA · 8.19 kW DC · warranty replacement Solar
• A vent pipe moved one panel off the plan Santa Clarita · shade you can draw, and a failure you cannot Solar
• It shut down after rain, and we did not install it Porter Ranch · service on somebody else's array Solar
• They wanted the same system as the neighbor Porter Ranch · 17 modules · the bill said something different Solar

This timeline reflects this property and this permitting path. Updated September 2026.