How to Size a Backup Generator for Your Home in 2024

Why Do You Need a Backup Generator?

In today’s unpredictable world, having a backup generator is essential. Whether it’s a severe storm or an unexpected power outage, a backup generator ensures that your home remains safe and comfortable. It provides peace of mind by keeping essential appliances and systems operational during an outage. From refrigerators and freezers to heating and cooling systems, a backup generator helps maintain your routine and prevents food spoilage or discomfort.

Backup generators are particularly crucial in areas prone to extreme weather conditions like hurricanes or blizzards. For those relying on medical equipment that requires electricity, having a backup generator is even more critical, ensuring continuous power and safety.

Factors to Consider for Backup Generator Sizing

Choosing the right size for a backup generator involves several key factors to ensure it meets your power needs. Here are the primary considerations.

1. Calculating Your Power Requirements

Start by listing all appliances and devices you want to power during an outage, noting their wattage ratings. These ratings are usually found on the appliance labels or in user manuals. Summing up the wattages gives you an estimate of your total power requirements.

2. Determining the Appropriate Generator Capacity

With an estimate of your power needs, choose a generator with a capacity equal to or slightly higher than your estimated requirements. This ensures the generator can handle the load without being overloaded.

3. Considering Starting and Running Wattage of Appliances

Appliances like refrigerators and air conditioners require extra power to start up compared to their running wattage. Consider these starting wattage requirements when sizing your generator, ensuring it can handle the highest starting load among your appliances.

By considering these factors, you can confidently select the right size backup generator for your home. If you have any questions or need assistance, don’t hesitate to contact our experts at Sears Home Services.

Types of Backup Generators

There are various types of backup generators available, each with unique features to suit different needs. Understanding these types helps in making an informed decision.

• Portable generators: These compact, versatile units can be easily moved around as needed. Typically fueled by gasoline, portable generators provide temporary power during emergencies or outdoor activities. However, they have limited power output and may not be suitable for larger appliances or entire homes.
• Standby generators: Permanently installed and directly connected to your electrical system, standby generators are powered by natural gas or propane. They automatically activate during power outages and can provide reliable, continuous power to your entire home or specific circuits, depending on the unit’s size and capacity.
• Inverter generators: Known for their fuel efficiency and quiet operation, inverter generators produce clean, stable power suitable for sensitive electronics. They are compact, lightweight, and ideal for camping or outdoor activities, though they may not offer as much power as other types.

Each type of backup generator has its pros and cons. Portable generators offer mobility but limited power output. Standby generators provide reliable, continuous power but require professional installation. Inverter generators are fuel-efficient and quiet but may not be as powerful. Choosing the right generator type involves considering power requirements, fuel availability, noise levels, and budget. It’s advisable to assess your needs and consult a professional to select the most suitable generator for your home.

Installation and Maintenance of Backup Generators

Proper installation and maintenance are crucial for optimal performance of your backup generator. Here’s what you need to know.

Installation

Correct standby generator sizing is vital for optimal performance. Start by calculating your power requirements, considering the wattage of all appliances, electronics, and systems you wish to power during an outage. A professional technician can assist, taking into account both starting and running wattage of each device. Choosing the right generator size is critical; an undersized unit may not handle the load, while an oversized one can be inefficient and costly. A professional generator installer can guide you based on your power needs and budget.

Maintenance

Regular maintenance is essential to keep your backup generator running smoothly. Routine tasks include checking and replacing the oil, filters, and spark plugs, and inspecting the battery and connections. Scheduling professional maintenance at least once a year ensures optimal performance and extends the generator’s lifespan.

When performing maintenance, follow safety precautions. Always turn off the generator and let it cool down before starting any tasks. Wear protective gear like gloves and safety glasses, and avoid touching hot surfaces to prevent burns. If unsure about any procedures, consult a professional to avoid accidents or generator damage.

Are you ready to install a whole-house standby backup generator for your home? Schedule a free in-home consultation with our Sears Home Services generator expert. We’ll verify your standby generator sizing calculations and help you begin your generator installation project so you can protect your family and keep your household comfortable through any type of power outage.