Standby generators
Permanently installed generators that start automatically when the power goes out.
Backup power for Sunnyvale homes: standby generators, portable generator inlets and transfer switches, installed with a load calculation and a permit.
Serving Cherry Chase, Ortega Park, Lakewood Village, Ponderosa Park, Fairbrae and the Heritage District and the rest of Sunnyvale. Share your address to confirm availability.

Standby generators and portable generator hookups installed with the right transfer equipment, so the house is powered safely and the utility line is never back-fed.
Permanently installed generators that start automatically when the power goes out.
An outdoor inlet and interlock or transfer switch, so a portable generator can power selected circuits without extension cords.
Manual or automatic transfer equipment sized to the generator and the loads you want to keep on.
Fridge, furnace blower, internet, lights and medical equipment moved to a backed-up subpanel.
Generator size matched to what you actually need to run, not guesswork.
Electrical permit, city inspection and utility requirements handled by HAXX.
Sunnyvale outages are usually short, but storms and grid events can still cut power for hours. Home offices, medical devices and refrigeration are the usual reasons to plan ahead.
The most affordable option: a safe inlet and panel interlock for a portable generator.
Automatic generators with a transfer switch, sized to the circuits you want to keep running.
HAXX handles City of Sunnyvale permits and plans placement around setbacks and neighbors.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“I purchased a couple of ceiling fans and was reluctant due to how old my house was with old wiring so I wanted someone professional and trustworthy. They have been both!”
“Prompt and professional - they helped run a new thermostat wire through a wall and crawl space.”
“I told him that the lights in my living room had been flickering for a while and asked if he could take a quick look. Instead of brushing it off, he immediately went to the main panel, asked a few questions, and then checked my subpanel in the garage.”
Existing equipment, home layout and what you want to improve.
Sizing, airflow, equipment placement and electrical needs.
Options, exclusions, permit requirements and any eligible incentives.
Confirm equipment, scheduling and handover details with HAXX.
A closer look at recent electrical work by HAXX. Projects in Sunnyvale are marked with the city.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
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Only through a transfer switch or a listed inlet and interlock. HAXX installs both.
It depends on what you want to run. HAXX sizes it from a load calculation.
No. Back-feeding through an outlet is dangerous for you and for utility workers. Use an inlet with an interlock or a transfer switch.
It depends on the circuits you want to keep powered. HAXX lists your critical loads and sizes the generator to them.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
