Backup Power When the Grid Fails

Browse Generac home standby generators built for Casper winters and designed to protect your home when outages strike.

When winter storms roll through Casper, power outages can leave your home without heat, water, or refrigeration for hours or days. A Generac home standby generator restores electricity automatically within seconds of an outage, keeping your furnace running, your sump pump working, and your food from spoiling. 7 stones electric carries a range of Generac models sized to meet the specific electrical demands of homes across Casper.

Generac generators are available in power outputs from 7.5 kilowatts up to 26 kilowatts, allowing you to power essential circuits or run your entire home depending on your budget and priorities. Each unit connects to your existing natural gas or propane line and starts automatically when utility power drops. Your selection depends on how many circuits you need covered, the size of your electrical panel, and whether you want whole-home coverage or just critical loads like heating, lighting, and refrigeration.

If you want to compare models or confirm which generator fits your home, reach out to 7 stones electric and we will walk you through the options available in Casper.

Choosing the Right Generator for Your Load

Selecting a Generac generator starts with calculating your home's electrical load during an outage. 7 stones electric reviews your panel size, the circuits you want covered, and the wattage demands of appliances like your furnace, well pump, water heater, and air conditioning. We recommend models based on that total load plus a buffer for startup surge, which some motors require when they kick on.

Once installed, your Generac unit sits outside your home on a concrete pad and runs a weekly self-test to confirm readiness. You will hear it cycle for a few minutes each week, checking oil pressure, battery charge, and fuel supply. If the grid goes down, the automatic transfer switch cuts utility power and signals the generator to start, usually within ten to fifteen seconds.

Generac generators include a five-year limited warranty covering parts and labor, and most units are designed to run continuously for days as long as fuel supply holds. We carry both air-cooled and liquid-cooled models depending on runtime expectations and the size of your home. You will also need to confirm your fuel source, whether natural gas from the street or an existing propane tank, since that determines which model you can install.

Questions homeowners in Casper ask before buying

Choosing a backup generator is a practical decision that depends on your home's layout, your electrical priorities, and how often outages affect your area. These questions cover the details most homeowners want to understand before committing to a purchase.

What size Generac generator do I need for my home?

Generator size depends on the total wattage of the circuits you want to back up, including startup surge for motors. 7 stones electric calculates your load during a site visit and recommends a model that covers your needs without oversizing the unit.

How long does a Generac generator last during an outage?

Generac standby generators can run continuously as long as fuel is available. Air-cooled models are rated for shorter runtime periods, while liquid-cooled units are built to operate for days without interruption.

What fuel source does a Generac generator use?

Most Generac home standby units connect to your natural gas line or an existing propane tank. Your fuel source determines which models are compatible with your property.

How much does a Generac generator cost?

Pricing varies based on unit size, fuel type, and installation complexity. A typical whole-home system ranges from several thousand dollars to over ten thousand depending on power output and site conditions.

Do Generac generators require regular maintenance?

Yes, Generac units need annual or biannual service including oil changes, filter replacement, and system testing. 7 stones electric offers maintenance plans that keep your generator ready year-round.


When you are ready to review Generac models or confirm sizing for your home in Casper, contact 7 stones electric and we will help you select the right unit for your electrical load and budget.