The Department of Homeland Security recently elevated its advisory level regarding potential cyber threats to critical infrastructure, including the electrical grid, amid rising tensions with Iran. While a large-scale grid attack remains unlikely, even localized outages can leave families without power for days. A home generator provides peace of mind and practical backup for essential systems. This guide will help you navigate the options and choose the right generator for your household.

Types of Home Generators

Home generators fall into three main categories, each suited to different needs and budgets. Understanding the differences is the first step toward making a smart purchase.

Portable generators are the most common and affordable option, ranging from $300 to $1,500. They run on gasoline and can power essential circuits in your home including refrigerators, lights, phone chargers, and sump pumps. Models from Honda, Champion, and Westinghouse dominate this category. The main drawbacks are that they require manual setup, produce significant noise, and must be operated outdoors due to carbon monoxide emissions.

Inverter generators are a quieter, more fuel-efficient subset of portable generators. They produce cleaner electrical output that is safe for sensitive electronics like computers and medical devices. Prices range from $500 to $2,500. The Honda EU2200i and Yamaha EF2200iS are perennial favorites in this category. They are ideal for households that need to power electronics and medical equipment but do not require whole-house backup.

Standby generators are permanently installed units that connect directly to your home’s electrical panel and start automatically when power is lost. Powered by natural gas or propane, they eliminate the need for gasoline storage and manual starting. Generac, Kohler, and Briggs and Stratton are the leading manufacturers. Prices range from $3,000 to $15,000 or more, plus $3,000 to $6,000 for professional installation. For families seeking seamless, automatic protection, standby generators are the gold standard.

Sizing Your Generator

The most common mistake when buying a generator is choosing one that is too small for your needs. To properly size a generator, you need to calculate the total wattage of the devices and systems you want to run simultaneously.

A typical household prioritizing essentials during an outage might need to power the following: a refrigerator at 600 watts, a freezer at 500 watts, several lights at 200 watts total, phone and device chargers at 100 watts, a sump pump at 1,000 watts, a furnace blower at 800 watts, and a window air conditioning unit at 1,200 watts. That totals approximately 4,400 watts of running power.

However, many appliances require additional surge watts at startup, sometimes two to three times their running wattage. A generator rated at 7,500 running watts with 9,500 starting watts would comfortably handle the example load above with a safety margin. As a general rule, buy a generator with at least 20 percent more capacity than your calculated need.

Fuel Considerations

Gasoline-powered portable generators are convenient for short outages but pose challenges for extended events. Gasoline has a shelf life of three to six months without stabilizer, and during a widespread emergency, gas stations may be unable to pump fuel due to their own power outages. Store gasoline in approved containers and add a fuel stabilizer like STA-BIL to extend its usability to 12 months.

Dual-fuel generators that run on both gasoline and propane offer more flexibility. Propane stores indefinitely, is widely available, and burns cleaner than gasoline. A standard 20-pound propane tank can power a mid-size generator for 8 to 12 hours at half load. Keeping two or three tanks on hand provides a meaningful backup fuel supply without the storage concerns of gasoline.

For standby generators, natural gas provides an unlimited fuel supply as long as gas lines remain pressurized, which they typically do even during electrical outages. Propane-powered standby units with a 250 to 500 gallon tank can run for one to two weeks continuously, depending on load.

Solar and Battery Alternatives

Portable power stations paired with solar panels have emerged as a compelling alternative to traditional generators for moderate power needs. Products from EcoFlow, Jackery, and Bluetti offer 1,000 to 3,600 watt-hours of stored energy that can be recharged via solar panels, wall outlets, or car chargers.

The EcoFlow Delta Pro, one of the most capable models, offers 3,600 watt-hours of capacity expandable to 25,000 watt-hours with additional batteries. It can power most household essentials for 12 to 24 hours and recharge via solar in 4 to 8 hours depending on panel configuration and sunlight conditions. At around $3,500 for the base unit, it is priced between portable and standby generators but offers silent operation, indoor use, and zero emissions.

The main limitation of solar and battery systems is their finite capacity. Unlike a fuel-powered generator that runs as long as you have gas, a battery system can only provide power until it is depleted and must wait for sunlight or another charging source to replenish. For multi-day outages in cloudy conditions, a traditional generator remains more reliable.

Safety Essentials

Generator safety cannot be overstated. Carbon monoxide poisoning from improperly placed generators kills dozens of Americans every year. Never operate a gasoline or propane generator indoors, in a garage, or near open windows. Place it at least 20 feet from any door, window, or vent, with the exhaust directed away from the house. Install battery-powered carbon monoxide detectors on every level of your home if you do not already have them.

Never connect a portable generator directly to your home’s electrical panel without a transfer switch. Backfeeding power into the grid through your panel can electrocute utility workers and damage your home’s wiring. A manual transfer switch costs $200 to $500 and should be installed by a licensed electrician.

Our Top Picks for April 2026

For most families, we recommend the Champion 7500-Watt Dual Fuel Generator as the best overall value at approximately $850. It offers ample power for essential circuits, the flexibility of dual fuel operation, and reliable performance backed by strong customer reviews. For those who prefer quiet, clean power for electronics and smaller loads, the Honda EU2200i inverter generator at $1,150 remains the benchmark. And for families who want worry-free whole-house protection, the Generac Guardian 22kW standby generator, installed for approximately $7,500 to $9,000, delivers automatic power restoration within seconds of an outage.

Whatever option you choose, the time to buy is before an emergency, not during one. Generator inventories tend to sell out quickly when headlines turn alarming, so acting now ensures you have the protection your family needs at a fair price.