Generator Installation in McKinney, TX
McKinney, TX blends historic charm with rapid growth, offering residents beautiful parks, vibrant downtown areas, and excellent schools. Grasten installs and services standby generators here from our Dallas facility, part of our Dallas service area.
McKinney Outage History
Why McKinney Homeowners Act
Winter Storm Uri in February 2021 left about 90,000 Oncor customers in Collin County without power on the afternoon of February 16, many for days in subfreezing cold. The May 28, 2024 storms knocked out power to more than 650,000 Oncor customers across North Texas in one day. Three days later about 6,200 Collin County customers were still without power. The March 2, 2023 storms left 46,855 Oncor customers in Collin County without power that evening, out of 280,159 across North Texas.
McKinney at a Glance
Power Outage Profile
The local details that shape your install: who runs the grid, who issues the permit, and which gas partners are in your area.
Oncor owns the poles and wires in most of McKinney and CoServ Electric serves part of the city; the city's own FAQ lists both as the power companies to call. Oncor customers choose a retail provider; CoServ members do not.
The City of McKinney Building Inspections office issues the permit through its Citizen Self-Service portal, filed as a residential stand-alone electric permit. Grasten pulls the permit with a licensed electrician and schedules the inspections.
Atmos Energy's Mid-Tex Division and CoServ Gas both run mains in McKinney; your gas bill says which. Streets without a main use a propane tank.
Winter Storm Uri, February 2021: about 90,000 Oncor customers in Collin County were without power on the afternoon of February 16, many for days in subfreezing cold.
Why McKinney Chooses Grasten
What Makes Us Different
Multi Brand Dealer
Whether your McKinney address is on Oncor or CoServ Electric, the right generator depends on your load, your fuel and your lot. Grasten is authorized to sell four brands, so the unit we size for you is chosen from all of them.
Four Brands, One Recommendation
12 Year Power Plus Warranty
Included at no extra cost, Power Plus gives a Generac air-cooled generator 12 years of coverage, a $1,499 value by itself. A Certified Canter Technician keeps it in force with annual maintenance, driving about 24 miles from our Dallas facility to McKinney.
12 Years of Full Coverage
Customized Mobile Fleet
Storms on March 2, 2023 left 46,855 Oncor customers in Collin County without power that evening. When outages run that wide, our own stocked vans are built to finish the repair on the first visit.
Ready to Roll
Typically 30 to 90 days from estimate to power on, depending on City of McKinney permit timelines. Grasten pulls the permit with a licensed electrician and schedules the inspections. See all six differentiators and the full process on the Dallas page ›
McKinney Pricing
What Does a Generator Cost in McKinney?
A whole home generator in the Dallas-Fort Worth metro costs $7,000 to $25,000+, installed. Here's where most McKinney homes land.
Essential circuits (lights, fridge, AC unit)
Most homes under 3,000 sq ft (full house)
Larger homes, multiple HVAC zones
Large homes, home offices, medical equipment
Prices include equipment, in-house installation, transfer switch, City of McKinney permit fees, and our 12-year warranty. Where a Atmos or CoServ gas main reaches your street, a natural gas connection typically adds minimal cost compared with a propane tank installation.
Because Grasten Power installs with our own crews instead of subcontractors, we cut out the outside markup that pushes installation costs higher at other companies. As a multi brand dealer, we match you with the unit that fits your home and budget rather than the only one on the shelf. The result is a higher quality installation at a fair price.
Dallas Hub
Part of Our Dallas Region
Full pricing guide, the four-brand comparison, and the complete regional FAQ.

Also Serving Near McKinney
Also serving Prosper, Princeton, Anna and the rest of Collin County.
Frequently Asked Questions
McKinney Generator Questions, Answered
Do I need a permit to install a generator in McKinney?
Yes. The permit comes from City of McKinney Building Inspections, applied for through the city’s Citizen Self-Service portal as a residential stand-alone electric permit; the city’s Development Navigation Assistant walks through the steps. A McKinney address outside the city limits goes through Collin County Development Services in McKinney (Citizen Self-Service portal). Grasten pulls the permit with a licensed electrician and schedules the inspections.
What knocks out power in McKinney?
Spring and summer storms with straight-line wind and hail, the occasional tornado, and the kind of winter event that took the ERCOT grid down statewide. Winter Storm Uri in February 2021 left about 90,000 Oncor customers in Collin County without power on the afternoon of February 16, many for days in subfreezing cold. The May 28, 2024 storms knocked out power to more than 650,000 Oncor customers across North Texas in one day. A standby generator starts on its own within seconds and runs until your utility restores service.
Is natural gas available at my McKinney address?
Often, yes. Atmos Energy or CoServ Gas serves McKinney, each on its own streets, so check your gas bill. Where there is no gas main on your street, the generator runs on propane from a tank on your property. We confirm which applies during the free estimate.
Will my McKinney HOA allow a whole home generator?
Many HOAs require architectural approval before installation. Grasten Power prepares the application package and goes through the review process for you, so you are not chasing board approvals on your own.
How fast can Grasten reach McKinney for repairs?
McKinney is served from our Dallas facility at 10840 Sanden Dr B, about 24 miles away. Our service vehicles are built out for first visit repairs and stocked with the parts that come up most, and our dispatch runs 24/7 with a live phone.
Get Started
Prepare Now Before the Next Storm
Free McKinney estimate. We pull the permits, then install and service your generator.