Emergency Generators: Your Home's Power Insurance Policy

When the lights go out unexpectedly, an emergency generator can be your saving grace. These powerful devices provide a crucial backup power source during outages, ensuring that your home remains functional and comfortable even when the electrical grid fails. Understanding the importance of emergency generators and how they work can help you make an informed decision about protecting your home and family during power disruptions.

Emergency Generators: Your Home's Power Insurance Policy

Why should homeowners consider investing in an emergency generator?

Power outages can occur for various reasons, including severe weather, equipment failures, or even planned maintenance. Without a backup power source, these outages can lead to a range of inconveniences and potential dangers:

  1. Food spoilage in refrigerators and freezers

  2. Loss of heating or cooling, which can be dangerous in extreme weather

  3. Disruption of medical equipment for those with health needs

  4. Inability to work from home or complete important tasks

  5. Security system failures

  6. Sump pump failures, potentially leading to flooding

An emergency generator provides peace of mind by ensuring that your home remains powered and functional during these critical times. It’s not just about convenience; it’s about maintaining safety and protecting your property.

What size generator do you need for your home?

Determining the right size generator for your home depends on several factors, including:

  1. The square footage of your home

  2. The number of appliances and systems you want to power

  3. The starting and running wattage of those appliances

  4. Your budget and energy needs

Generally, home emergency generators range from 7 kW to 38 kW for residential use. A 7 kW generator might power essential circuits in a small home, while a 20 kW unit could run most appliances in a medium-sized house. For larger homes or those wanting to power everything, including central air conditioning, a 30-38 kW generator might be necessary.

It’s crucial to have a professional assess your specific needs to ensure you choose a generator that can handle your power requirements without overloading.

How much does an emergency generator cost?

The cost of an emergency generator can vary widely based on size, features, and installation requirements. Here’s a general breakdown of what you might expect:


Generator Size Typical Home Size Estimated Cost Range (including installation)
7-10 kW Small $3,000 - $6,000
12-20 kW Medium $5,000 - $12,000
22-30 kW Large $10,000 - $20,000
32-38 kW Very Large $15,000 - $30,000

Prices, rates, or cost estimates mentioned in this article are based on the latest available information but may change over time. Independent research is advised before making financial decisions.


These costs typically include the generator unit, installation, and often a concrete pad for mounting. Additional costs may include upgrading your home’s electrical panel or installing a new natural gas line if needed.

While the initial investment may seem significant, many homeowners find the peace of mind and protection offered by an emergency generator to be well worth the cost, especially in areas prone to frequent or prolonged power outages.

What maintenance does an emergency generator require?

Like any mechanical system, emergency generators require regular maintenance to ensure they’re ready to perform when needed. Typical maintenance tasks include:

  1. Regular oil and filter changes

  2. Checking and replacing spark plugs

  3. Inspecting and cleaning air filters

  4. Testing the battery

  5. Checking fuel lines and connections

  6. Running the generator periodically to ensure proper operation

Most manufacturers recommend annual professional servicing, with some basic checks performed monthly or quarterly by the homeowner. Proper maintenance not only extends the life of your generator but also ensures it will start reliably when you need it most.

Are there alternatives to whole-house emergency generators?

While whole-house generators offer the most comprehensive protection, there are alternatives for those with different needs or budget constraints:

  1. Portable generators: These are less expensive and can power essential appliances, but require manual setup and fuel storage.

  2. Inverter generators: More fuel-efficient and quieter than traditional portable generators, but typically have lower power output.

  3. Solar generators: Environmentally friendly option that doesn’t require fuel, but may have limited power capacity and longer recharge times.

  4. Battery backup systems: Can power essential circuits for a limited time, often paired with solar panels for recharging.

These alternatives can provide some level of backup power, but may not offer the same seamless, automatic protection as a whole-house emergency generator.

In conclusion, an emergency generator is a significant investment in your home’s resilience and your family’s comfort and safety during power outages. By understanding your power needs, budgeting for the initial cost and ongoing maintenance, and choosing the right system for your home, you can ensure that when the grid goes down, your life goes on uninterrupted.