Commercial & Industrial Generator Sizing Calculator


Sizing Made Easy


Cat® Electric Power SpecSizer. Selecting the correct generator set for your facility has never been easier.

Taking account of your unique installation requirements, our intuitive interface allows you to easily build your load profile and select the optimum generator set. Features include:

  • Drag and drop loads to quickly model your facility
  • Easily organise and sort project files with improved interface
  • Load optimisation algorithms to calculate the best fit-for-purpose generator set 
  • A full sizing report, generator set technical data and drawings
  • Easy file sharing to facilitate collaboration with Caterpillar experts

For SpecSizer Generator Sizing Software Support Email:

Get up to speed on power solution optimisation.

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Webinar – 5 Essential Tips & Tricks for Sizing Gensets

Duration: 1 hour

Generator set sizing is part science, part art. There are many variables to consider during the selection process – location, footprint, types of load, distribution – just to name a few.

Help has arrived! Join us for this free webinar and learn how to quickly find the correct generator set for your project.


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training videos

specsizer training

Check out training and how-to videos for the Electric Power SpecSizer program.

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