Generator Sizing and Load Calculation in Nashville and Middle Tennessee
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Generator Sizing and Load Calculation

The most important step in any generator project, done properly: what you want to run, how much it really needs and how big the generator should be.

Most generator problems trace back to sizing. A unit that is too small trips under load; one that is far too big costs more to buy, install and fuel than it needs to. The right answer comes from your real electrical loads, including the starting surge of motors like air conditioners and well pumps.

We review your panel, list the circuits that matter, calculate running and starting watts and compare whole-house, partial-house and essentials-only approaches. You get a clear recommendation and a range of options, whether or not you decide to buy from us.

What is included

  • Panel and service inspection
  • Circuit-by-circuit load list
  • Motor starting-load calculation
  • Fuel and gas capacity check
  • Written sizing summary
  • Budget range for each option
Why it works

What you get with Sizing & Load Calculation

Real numbers

Running watts, starting watts and diversity, calculated, not guessed.

Options compared

Whole house, partial house or essentials with load management.

Avoid overspending

Pay for the capacity you will use.

Avoid undersizing

Prevent overloads and shutdowns when it matters.

Brand-neutral advice

We compare Generac, KOHLER and more on your loads.

Free and no-pressure

The assessment is free and comes with a written recommendation.

Try it now

Generator Size Calculator

Tick the appliances you want to keep running and get a planning size in kW, with starting surges included.

How it works

Our process, start to finish.

  1. 01

    A free assessment

    We visit, review your panel, meters, yard and goals, and talk through how you use power.

  2. 02

    Sizing and a clear plan

    We calculate your real loads and present options for size, brand, fuel and switch with transparent pricing.

  3. 03

    Permits and approvals

    We pull permits and coordinate HOA, utility and inspection steps.

  4. 04

    Pad, fuel and trenching

    We prepare the site, set the pad and run gas or propane and conduit.

  5. 05

    Set, wire and connect

    The generator is set and anchored, and the transfer switch and electrical are tied in.

  6. 06

    Test, train and support

    We pass inspection, test under load, walk you through it and stay available for service.

Questions

Sizing & Load Calculation FAQ

Is generator size based on square footage?

No. Square footage is only a rough guide. Air conditioners, well pumps and electric ranges drive the real answer.

What is the difference between running and starting watts?

Running watts are what a device uses continuously. Starting watts are the brief surge a motor needs to start. Both matter.

Can I get a recommendation without buying?

Yes. The assessment is free and you keep the written recommendation.

Will the calculator replace a site visit?

It gives a planning range. We confirm on site because every panel and home is different.

Next step

Get your free Sizing & Load Calculation estimate.

Tell us a little about your property and we will be in touch quickly.

Or call (615) 357-7797 to talk now.

Tell us about your power needs

We’ll follow up quickly to schedule your free assessment.

Prefer to talk? Call (615) 357-7797. We never sell your information.

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