Advanced Electric Systems

Advanced Electric Systems (AES) is a specialized electrical infrastructure services company headquartered in Heber City, Utah, and a subsidiary of Quanta Services. It tests, maintains, and repairs critical power systems for electrical utilities, energy contractors, and industrial businesses. Work spans high and low voltage substation service and maintenance, power transformer service, acceptance testing and commissioning, and preventative maintenance programmes, alongside SF6 insulating gas handling, filling, and testing, high voltage SF6 and oil circuit breaker services, DC power systems work, and OPGW fiber splicing and terminations.

The company's workforce operates across a range of technical domains, from transformer service of any size to fiber optics and gas handling. Its technicians are described as factory-certified and specially trained to handle, fill, and test SF6 insulating gases safely, reflecting an emphasis on safety and technical certification. The team is characterised as knowledgeable, reliable, and responsive under challenging conditions and timelines.

AES provides 24/7 emergency response for outages, equipment failures, and natural disasters, in addition to preventative maintenance programmes designed to prevent problems before they occur. The company frames its work around solving mission-critical issues and building infrastructure that keeps power systems running reliably. Its technical teams report combined experience of over 50 years.