Backup Generators for Home: Everything You Need to Know Before Storm Season

The U.S. Energy Information Administration (EIA) reported that the average American experienced over 5 hours without power in 2022—one of the highest on record. When storms roll in, power outages are more than just an inconvenience—they can put your home, comfort, and safety at risk. A backup generator for home use offers peace of mind, keeping your lights on, your food cold, and your essential systems running when the grid goes down. But here’s the catch: a generator is only reliable if it’s properly maintained and storm-ready.

With peak storm season approaching, now is the time to make sure your backup generator is prepared. At EMC Electric, we’ve seen too many homeowners caught off guard by last-minute failures. That’s why we’ve created this practical checklist to help you get ahead of the weather.

Step 1: Inspect and Test Your Generator Before the First Storm

The most important thing you can do is to give your generator a thorough inspection and test run well before you need it.

• Look for leaks, corrosion, or damage to fuel lines, electrical connections, and the housing.
• Check your oil and coolant levels to confirm they’re within the manufacturer’s recommended range.
• Run your generator under load for at least 20–30 minutes to confirm it can power essential systems like HVAC, refrigeration, or medical equipment.

Routine testing highlights potential problems and keeps the system’s engine lubricated and ready for use. 

Ready for a professional inspection? Schedule a generator maintenance service with EMC Electric today.

Step 2: Replace or Refill Fuel Supplies

Generators are only as reliable as their fuel source. If your generator runs on natural gas, propane, or diesel, it’s critical to check fuel levels and freshness before a storm.

• Propane/Diesel Generators: Fuel degrades over time. Old diesel can accumulate sediment, which may clog fuel injectors. Always top off fresh fuel before storm season.
• Natural Gas Generators: Make sure your gas line and meter are in good working order and properly sized to handle the load.

The Federal Emergency Management Agency (FEMA) warns that fuel shortages are common after disasters due to supply chain disruptions. Preparing in advance prevents you from scrambling once the storm hits.

Step 3: Schedule Professional Generator Maintenance

While DIY checks are important, professional servicing is non-negotiable if you want long-term reliability from your backup generator.

A certified electrician or technician will:

• Test and replace spark plugs, air filters, and belts.
• Inspect transfer switches and wiring for safe operation.
• Update firmware or system software, if applicable.
• Verify compliance with local electrical codes and safety standards.

At EMC Electric, our technicians not only perform routine tune-ups but also identify potential failure points that may not be visible to homeowners. Think of it like taking your car for an oil change—it’s routine upkeep that prevents major issues.

Step 4: Review Your Generator’s Installation and Placement

A poorly installed generator can create serious hazards, from carbon monoxide exposure to electrical malfunctions. Before storm season:

• Confirm proper clearance around your generator (at least five feet from doors, windows, and vents).
• Check your generator’s pad or base to make sure it’s level and secure. Storm flooding or shifting ground can compromise performance.
• Verify your automatic transfer switch is properly connected so power transfers seamlessly during an outage.

If you’ve recently moved into a new home or purchased a new unit, consider a professional installation review. EMC Electric’s generator installation services give homeowners confidence that their system is safe, efficient, and compliant.

Step 5: Create an Emergency Preparedness Plan

Even with a reliable backup generator, every household should have a clear plan for what to do when the power goes out.

• Prioritize which appliances and systems need power first (refrigerator, sump pump, medical devices, Wi-Fi router).
• Train family members on how to operate the generator safely and what warning signs to look for.
• Keep a supply kit with batteries, flashlights, first aid essentials, and nonperishable food.

By combining a ready-to-go generator with a strong preparedness plan, you’ll minimize stress and maximize safety during storm season.

Why a Reliable Backup Generator is Essential for Your Home

Due to extreme weather events, power outages are becoming more frequent and severe across the U.S..

A backup generator for home use bridges that gap, protecting you from:

• Spoiled food and wasted groceries.
• Loss of heating or cooling during extreme temperatures.
• Inability to charge communication devices.
• Risks to home security systems.

With the proper preparation, your generator transforms from a machine you hope works into a dependable lifeline during emergencies.

Backup Generator Preparation

How often should I test my backup generator?

Most manufacturers recommend running your backup generator at least once a month under load. This simple habit keeps the engine lubricated, the battery charged, and ensures the system will perform during an actual outage.

Best practices for testing:

• Run the generator 20–30 minutes under load (powering essential appliances).
• Listen for unusual noises such as knocking, sputtering, or uneven running.
• Check oil and coolant levels before and after each test.
• Verify that your automatic transfer switch (ATS) is working correctly.

By testing monthly, you’ll catch small problems early—before they leave you without power during a storm.

Can I install a backup generator myself?

While treating a generator like any other appliance might be tempting, backup generator installation is not a DIY project. Improper wiring or placement can put your home and family at risk.

Why you should use a licensed electrician:

• Safety: Incorrect installation can lead to carbon monoxide leaks, electrical fires, or backfeeding into the power grid.
• Code compliance: Professional electricians install according to local building and electrical codes.
• Warranty protection: Many manufacturers require professional installation to keep warranties valid.
• Efficiency: A pro will make sure the generator is sized correctly and connected to essential circuits.

For safe and reliable operation, schedule your installation with EMC Electric.

What size generator do I need for my home? 

The right size backup generator depends on your home’s square footage, appliances, and power needs. Installing one that’s too small means it won’t power everything you need. One that’s too large may waste fuel and cost more to operate.

Factors that determine generator size:

• Square footage: Larger homes typically need larger units.
• Essential appliances: Refrigerators, HVAC systems, sump pumps, medical devices, and water heaters all require specific wattage.
• Starting watts vs. running watts: Some appliances (like air conditioners) need extra wattage at startup.
• Lifestyle needs: Decide if you want to power just the essentials or run your whole home.

An electrician can perform a load calculation to recommend the right unit. For most homes, sizes range from 10kW (basic coverage) to 22kW+ (whole-home power).

How long will a full tank of fuel last in a generator?

Fuel run times vary widely based on generator type, tank size, and electrical load. Knowing what to expect helps you plan during extended outages.

Typical run times by fuel type:

• Propane Generators: 24–72 hours on a full tank (depending on load).
• Diesel Generators: 12–24 hours on a full tank, but efficient under heavy loads.
• Natural Gas Generators: Virtually unlimited as long as the gas supply remains active.

Factors that impact run time:

• The number of appliances and systems connected.
• Weather conditions (extreme heat/cold may increase usage).
• Maintenance—dirty filters or poor performance can reduce efficiency.

Always keep extra fuel (where safe and legal), and test your generator under real conditions to get accurate run-time expectations.

When should I schedule maintenance for my generator?

At minimum, schedule professional generator maintenance once a year—ideally before peak storm season. Regular upkeep ensures reliability and extends the lifespan of your investment.

Annual service typically includes:

• Oil and filter changes
• Spark plug and air filter replacement
• Transfer switch and wiring inspection
• Fuel system checks
• Battery testing

Additional maintenance times to consider:

• After prolonged use (running for 24+ hours during an outage).
• If your generator has been idle for months without testing.
• Anytime you notice unusual noises, warning lights, or performance issues.

A yearly inspection by EMC Electric’s certified technicians keeps your generator storm-ready when you need it most.

Don’t Wait to Install a Reliable Backup Generator

Storm season brings uncertainty, but preparing your generator today means peace of mind tomorrow. From routine inspections to professional servicing, every step you take now reduces stress when the power inevitably goes out.

Contact EMC Electric today to schedule your generator maintenance or installation. With expert care and reliable service, you’ll have confidence knowing your home is ready—no matter what the storm brings.