One of those technicians who never touched a wire until he had checked the schematic twice.
He parked beside the workshop.
“Software day.”
He said.
“Apparently.”
“What did you break?”
“Nothing yet.”
“Good.”
He smiled.
Daniel had scheduled the visit because the inverter manufacturer released a firmware update affecting battery-management communication and monitoring.
Routine.
The update required temporarily taking both hybrid inverters offline.
My house would remain supplied by the utility grid during the service interval.
The solar array simply would not produce.
The battery system would also remain isolated until Daniel completed verification.
Normal.
Daniel opened the equipment cabinet.
Laptop.
Service cable.
Safety checks.
I mentioned Karen’s morning visit.
He stopped.
“Voltage problems?”
“According to her.”
“On your side?”
“She implied neighborhood.”
Daniel frowned.
“This system cannot regulate their houses.”
“I know.”
“Unless they're seeing utility-side issues at the common transformer.”
“That's what I assumed.”
Daniel looked toward the trench leaving the equipment room.
“Any changes since we commissioned?”
“None by me.”
“Utility work?”
“Not that I know.”
He shrugged.
“We'll check logs after the update.”
At 1:58, Daniel called the manufacturer’s support line.
At 2:00 exactly, he initiated the controlled shutdown.
Solar production dropped from 31.4 kilowatts to zero.
Battery inverter output went to standby.
My house transferred to normal utility service.
Lights stayed on.
Refrigerator stayed on.
Computer stayed on.
Everything behaved exactly as expected.
Daniel watched the status screen.
“Unit one offline.”
“Unit two offline.”
“Grid stable.”
He started the update.
Two minutes later, my phone rang.
Karen.
I looked at the screen.
“That's fast.”
Daniel kept working.
I answered.
“Hello?”
“What did you do?”
No greeting.
No explanation.
Her voice was loud enough that Daniel could hear.
“What do you mean?”
“The power.”
“What power?”
“Cedar Hollow.”
“What about it?”
“Several houses just lost power.”
I looked at Daniel.
He stopped typing.
“How many?”
I asked.
“I don't know.”
“Six.”
“Maybe eight.”
“The gate controller is down.”
“The clubhouse is dark.”
“Frank Ellis called.”
“The Petersons are out.”
“And the Millers.”
I stared toward my equipment cabinet.
Daniel stared back.
“Call the utility.”
I said.
“I already did.”
“They said there isn't a general outage.”
A cold feeling moved through my stomach.
Karen continued.
“You need to restart your solar system.”
I almost thought I misunderstood.
“What?”
“Turn it back on.”
“It is undergoing scheduled maintenance.”
“Then stop the maintenance.”
“No.”
“Thomas.”
“People have no electricity.”
“That is unfortunate.”
“Your system caused it.”
“If stopping production caused their outage, then we have a very different problem.”
Silence.