Your installer went bankrupt. Who's watching your solar system now?

When a solar installer goes out of business, the panels stay on the roof and keep producing. Nothing dramatic happens on the day the company closes. That is exactly what makes the situation easy to ignore and expensive to leave alone.

What stops is the watching. The homeowner still has the manufacturer's app, which reports what the inverter can see: production figures, a status indicator, perhaps a fault code if something has failed loudly. What no longer exists is anyone comparing that output against what the system should be producing, and anyone with an obligation to act when the two diverge.

That distinction is the whole problem. The failures that cost the most are not the ones that announce themselves. A disconnected string. A failing optimiser. A tree that has grown into the afternoon sun. Each produces output that looks entirely plausible on its own. The system is online. The app is green. Production is lower than it should be, but the homeowner has no baseline to compare against and no reason to suspect anything.

We documented one case in detail: a 29-kilowatt system with one of three strings disconnected for twenty-two days. The manufacturer's app reported the system as healthy throughout, because the two remaining strings were working normally. Against a weather-adjusted baseline the gap was 54 kWh a day. Roughly $260 a month, invisible.

For an orphaned system there is no installer to notice, so that loss simply continues. It ends when the homeowner eventually compares one year's electricity bills against another and goes looking for an explanation, which for most people is a long way off.

The practical remedy is less involved than it sounds, because modern residential monitoring does not require a site visit. The inverter is already sending its data to the manufacturer's cloud platform. A monitoring service that can authenticate against that platform can read the system without anyone climbing on a roof, plugging in a gateway or touching the installation. Bringing an orphaned system under watch is a credential exchange.

That has a consequence worth spelling out for installers. Every homeowner stranded by a competitor's closure is a customer with a system, no service relationship, and a reason to want one. Adopting them costs no truck roll. The barrier is not logistics. It is whether your monitoring can read whatever brand they happen to have, which argues for multi-brand coverage rather than specialising in what you install yourself.

For a homeowner in this position, the question to ask any company offering to take over is narrow and answerable: are you comparing my output against what it should be, or only reporting what it is? Those are different products, and only one of them finds the failure that does not announce itself.