Electrical Cable Injection Project

The City of Naperville’s Department of Public Utilities – Electric will continue a project to upgrade the aging electrical cable in several subdivisions. The work is scheduled to begin January 24 and will continue through the spring, pending weather or unforeseen circumstances.

Novinium logoThe Electric Utility is working with a company called Novinium that will test and fill the cracks, which have developed over time in the protective insulation of underground electrical cables. This injection process will extend the life of the cable for a minimum of 20 years and will help prevent future cable failures and power outages. It is a cost-effective measure in maintaining the reliability and longevity of the underground electrical system.

Subdivisions were chosen that had the highest failure rate of underground cables due to several factors including age, soil composition and water table height.

Please be aware that utility workers will be accessing residents’ yards during this project. There are some locations where trees have been planted in the utility easements. Homeowners whose trees need to be trimmed to allow access for utility workers will be notified prior to the work being done.

Affected Subdivisions

Beginning Monday, May 14, cable injection will begin in the following subdivisions and is expected to last through September, weather permitting:

  • Bonnema Woods
  • Caroline Woods
  • Cobblebrook Crossing
  • Green Ridge Estates
  • Hidden Valley Lake Estates
  • High Oaks
  • Laurel Glen
  • Meadow Glens (small northeast section)
  • Robins Nest
  • Royce Hill
  • Shiva Estates
  • University Heights
  • Walnut Hill
  • Walnut Woods

Cable replacement and equipment upgrades are underway in the Springbrook Crossing and Brook Crossing subdivisions and will be ongoing through the fall.

Department of Public Utilities - Electric

  • 1392 Aurora Avenue
    Naperville, IL 60540

    To set up new service: (630) 420-6059
    For billing questions: (630) 420-6059
    To report an electrical outage: (630) 420-6187
    To report streetlight issues: (630) 420-6187
    For all other electrical inquiries: (630) 420-6181