Naperville boasts modern and highly reliable infrastructure. It is unique among its peer suburbs because it owns and operates its own electric utility, the Naperville Department of Public Utilities (DPU-E). This allows the city to maintain a highly reliable smart grid, respond rapidly to outages, and offer competitive rates.
Water and sewer services are also managed municipally. The city receives its drinking water from Lake Michigan, sourced through the DuPage Water Commission, ensuring a high-quality and stable water supply.
Telecommunications infrastructure is robust, with widespread access to high-speed broadband, fiber-optic internet, and comprehensive 5G cellular coverage provided by all major national carriers, supporting the city's heavy concentration of tech and corporate businesses.