What Size Generator Do I Need?

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Choosing the right size generator for your home or business is a crucial decision that can significantly impact your comfort and safety during power outages. As your trusted Electrician in New Orleans, B Powered Electric understands the importance of ensuring you have reliable backup power tailored to your specific needs. This blog post will guide you through the factors to consider when selecting a generator size, ensuring you make an informed decision.

Understanding Your Power Needs

The first step in determining the right generator size is to understand your power requirements. This involves identifying the essential appliances and systems you need to keep running during an outage. Common essentials include refrigerators, lighting, heating and cooling systems, and medical equipment. Calculating the total wattage of these items gives you a baseline for the minimum power output your generator should provide.

Types of Generators and Their Capacities

When selecting a generator, it’s crucial to understand that they come in various types and sizes, each designed to cater to specific needs and applications. The choice between a portable, inverter, or standby generator depends on your power requirements, the appliances you need to run, and the level of convenience you desire during a power outage:

  • Portable Generators: Ideal for powering a limited number of appliances. They typically range from 3,000 to 8,500 watts.
  • Inverter Generators: Best for sensitive electronic devices due to their stable power output. These range from 1,000 to 4,000 watts.
  • Standby Generators: Permanently installed and automatically start during an outage, offering a seamless power transition. They can provide anywhere from 5,000 to over 20,000 watts, depending on the model.
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Calculating the Right Size

To calculate the right generator size, add up the wattage of all the appliances and systems you plan to run simultaneously. It’s important to note that some appliances, like air conditioners and refrigerators, require more power to start than to run, known as starting or surge watts. Ensure your generator can handle the total running watts plus the highest surge watts of any single appliance.

Considerations for Commercial Properties

For commercial properties, the calculation becomes more complex due to the larger scale and diversity of electrical needs. B Powered Electric, your Electrician in New Orleans, specializes in assessing commercial power requirements and can help design a backup power system that ensures your business operations continue smoothly during power interruptions.

Why Professional Consultation Matters

Selecting the right generator size is not just about meeting your current needs but also considering future expansions and changes in power consumption. Consulting with a professional Electrician in New Orleans like B Powered Electric can provide you with the expertise needed to make an educated choice. Our team can help assess your power needs, recommend the appropriate generator size, and ensure proper installation and maintenance.


Determining the right generator size is essential for maintaining comfort, safety, and continuity during power outages. Whether for residential or commercial use, understanding your power needs and consulting with experienced professionals like B Powered Electric will ensure you select a generator that meets your requirements. Trust B Powered Electric, your expert Electrician in New Orleans, to guide you through the process and provide a reliable backup power solution tailored to your needs.