Shown on Utility and Electrical Site Plans
The location of the main transformer or substation serving a site is typically indicated in utility layout or electrical site plans. These documents specify where electrical infrastructure connects to the property and distributes power.

• Pad-mounted transformers are often located near the site’s electrical entry point
  
• Substations are shown if the site draws power directly from high-voltage infrastructure
  
• Plans detail transformer size, voltage level, and access clearances
  

Determined by Proximity to Utility Infrastructure
Transformers and substations are placed strategically by utility providers to balance load, minimize transmission loss, and ensure safety. Their location depends on regional demand and infrastructure design.

• Site-specific transformers are located on or adjacent to the property
  
• Larger substations are usually found within 0.5 to 2 miles of major industrial zones
  
• Placement considers environmental buffers, zoning setbacks, and utility easements
  

Verified Through Utility Provider Coordination and Mapping Tools
To confirm exact locations, developers or engineers must coordinate with the local power utility. Providers offer service maps, infrastructure diagrams, and on-site inspections to identify power sources.

• Utility companies can confirm transformer capacity and location upon request
  
• GIS utility maps or load center directories show nearby substations
  
• Field inspections can verify pad-mounted equipment locations on or near the site