Whole Home Generator Installation in McKinney, TX: Your Guide to Backup Power
If you've lived in North Texas for more than a few years, you already know: severe storms, ice events, and summer heat waves can knock out power for hours — or even days. For homeowners in McKinney, Prosper, Celina, and across Collin County, a whole home standby generator isn't a luxury anymore. It's peace of mind.
Moran Electric installs and wires standby generators and transfer switches for homes and businesses throughout the area. Here's everything you need to know before making a decision.
Standby Generator vs. Portable Generator: What's the Difference?
There are two main types of backup generators — and understanding the difference helps you choose the right solution for your home.
A portable generator is a gas-powered unit you wheel out, fuel up, and run extension cords from. They're affordable upfront but require manual setup, proper outdoor placement, and can only power select appliances at once.
A standby generator (also called a whole home or automatic standby generator) is permanently installed outside your home and wired directly into your electrical panel. When power goes out, it detects the outage and kicks on automatically — usually within seconds. It runs on natural gas or propane and can power your entire home, including your HVAC, refrigerator, lights, and security system.
What Does a Standby Generator Installation Include?
When Moran Electric installs a standby generator at your McKinney home, here's what's involved:
Site assessment to determine the right generator size for your home's electrical load
Coordination with your gas utility for proper gas line sizing and connection
Installation of the generator on a concrete pad outside your home
Installation of an automatic transfer switch (ATS) at your electrical panel
Full wiring, testing, and load verification before we leave
The transfer switch is a critical piece — it safely disconnects your home from the utility grid before the generator kicks in, protecting both your equipment and utility workers from dangerous backfeed.
What Size Generator Do I Need?
Generator size is measured in kilowatts (kW). For most McKinney-area homes, a 20kW to 26kW generator is enough to run everything comfortably. Larger homes with multiple HVAC systems or all-electric appliances may need 30kW or more.
During our site assessment, we calculate your home's actual load requirements so you get a generator that's properly sized — not over- or under-built for your needs.
Do I Need a Permit for a Generator in McKinney?
Yes. In McKinney and throughout Collin County, generator installations require an electrical permit. Moran Electric handles the entire permitting process for you. As a licensed Texas Electrical Contractor (TECL #40604), we pull permits, perform the work to code, and schedule the required inspections — so you never have to worry about compliance.
Interlock Kits: A Budget-Friendly Alternative
Not ready to invest in a full standby system? An interlock kit is a code-compliant device installed on your existing electrical panel that allows you to safely connect a portable generator to your home's wiring. It's a more affordable option that still gives you whole-home coverage in an outage — without the extension cords.
Moran Electric installs interlock kits throughout McKinney and Collin County as well.
Serving McKinney, Prosper, Celina, Anna & Beyond
As a locally owned and operated company, we understand what North Texas weather can do to your home. We serve homeowners and businesses throughout McKinney, Prosper, Celina, Anna, Melissa, Princeton, and all of Collin County.
