Few things disrupt comfort and safety faster than an unexpected power outage. Whether you’re preparing your home, RV, or job site, one question always comes first: what size generator do I need? Choosing the right generator isn’t just about convenience—it’s about protecting your essential devices, ensuring your appliances keep running, and giving your family peace of mind.
That’s where Mauro Electric comes in. With years of expertise in electrical systems and home generators, Mauro Electric helps homeowners and businesses select, install, and maintain the perfect power solution. From understanding running wattage and starting wattage to choosing between a portable generator and a standby generator, we’ve got you covered with expert insights that make the decision easy and reliable.
Start with the Basics: What Size Generator Do I Need?
The right size generator depends on how much power you’ll need to run your essential devices during an outage. Begin by making a list of everything you plan to power—refrigerator, sump pump, lights, furnace, Wi-Fi router, and maybe a few appliances for comfort.
Mauro Electric recommends calculating the total running watts (the amount of power needed to keep an appliance running) and adding the starting watts (the extra power required to start the motor). This calculation gives you a clear idea of your total running load—an essential step before choosing any home generator.
Understanding Running Wattage and Starting Wattage
Your generator’s wattage rating is critical for safe and efficient performance.
- Running wattage: The continuous power required by an appliance to operate.
- Starting wattage: The temporary surge in watts needed to start electric motors like refrigerators or air conditioners.
Mauro Electric often explains this with a simple example: a refrigerator might need 700 running watts but 2,200 starting watts. If your generator isn’t rated high enough, those appliances may not start properly—or could overload your system. By accurately identifying both running and starting requirements, you can choose the ideal generator size for your needs.
Portable Generator vs. Standby Generator: Which One Fits Your Lifestyle?
Choosing between a portable generator and a standby generator depends on your priorities. A portable generator is great for mobility—it can power your tools at a job site, or keep key home systems on during an outage. However, you’ll need to refuel and manually connect it when the power goes out.
A standby generator, on the other hand, automatically turns on during an outage and can power your entire home. Mauro Electric often installs home standby systems that run on natural gas or propane—no manual setup, no refueling, just seamless protection when you need it most.
How to Calculate the Right Size Generator for Your Home?
To determine what size generator you need, follow this simple formula:
- List your essential devices (like lights, furnace, fridge, and sump pump).
- Find their running watts—usually listed on the appliance label or manual.
- Add the highest starting wattage among your devices.
For example, if your total running wattage is 4,000 watts and your largest starting load adds another 2,000 watts, you’ll need a generator that can handle at least 6,000 watts. Mauro Electric can help assess your home’s specific load and recommend a generator that fits perfectly—without overspending on unnecessary capacity.
Think About Fuel Type and Efficiency
Your generator’s fuel source affects both convenience and cost. Mauro Electric helps customers choose between:
- Gasoline generators: (affordable but require frequent refueling)
- Propane or natural gas generators: (cleaner and ideal for standby systems)
- Diesel generators :(powerful and efficient for large operations)
Fuel efficiency matters when you’re relying on your generator for extended periods. Modern inverter generators, for instance, adjust their engine speed to match demand—saving fuel and reducing noise.
Don’t Overlook Inverter Generators for Sensitive Devices
If you’re powering devices like laptops, TVs, or medical equipment, an inverter generator is often the safest choice. These advanced generators produce clean, stable electricity with minimal voltage fluctuations. Mauro Electric frequently recommends inverter models for homeowners who value quiet performance, fuel efficiency, and protection for their electronics.
Sizing Generators for Different Scenarios
Different situations call for different generator sizes:
- Small portable generators (2,000–4,000 watts): Great for camping, RVs, or a few appliances during brief outages.
- Medium generators (5,000–8,000 watts): Ideal for most homes, powering essential devices like refrigerators, sump pumps, and lights.
- Large standby generators (10,000+ watts): Perfect for whole-home coverage, including HVAC systems, electric stoves, and water heaters.
Whether you need a backup generator for emergencies or a permanent home standby system, Mauro Electric will ensure your choice matches your power requirements and lifestyle.
Why Professional Generator Installation Matters?
Proper installation ensures your generator operates safely and efficiently. DIY wiring can be dangerous and may void warranties. Mauro Electric specializes in safe, code-compliant home generator installations—from portable transfer switches to full standby systems.
Our licensed electricians handle everything: load assessment, wiring, transfer switch installation, and fuel line connections. With Mauro Electric, you get reliability, expert craftsmanship, and long-term peace of mind.
Maintenance Tips to Maximize Your Generator’s Lifespan
Once you’ve chosen the right size generator, keep it in top condition with regular maintenance. Mauro Electric recommends:
- Checking oil and fuel levels before each use.
- Running the unit monthly to prevent moisture buildup.
- Changing filters and spark plugs per the manufacturer’s schedule.
- Scheduling annual professional service for standby generators.
Routine maintenance ensures consistent performance and extends your generator’s life—saving you money and frustration in the long run.
Trust Mauro Electric for Reliable Power Solutions
Selecting the perfect generator shouldn’t be a guessing game. Whether you’re wondering “what size generator do I need?” or comparing portable and standby models, Mauro Electric delivers honest advice and top-quality solutions tailored to your home.
Our team helps you assess your power needs, install dependable generators, and maintain them year after year. From small portable generators to large home standby systems, Mauro Electric ensures your lights stay on—and your life keeps running—no matter what.
Power Up Your Peace of Mind with Mauro Electric
Don’t wait for the next storm to test your readiness. Contact Mauro Electric today to find out exactly what size generator fits your needs, budget, and lifestyle. When the power goes out, Mauro Electric makes sure you stay connected, comfortable, and completely in control.
