Department of Public Utilities
Naperville's municipally owned electric, water and wastewater utilities are locally controlled and managed, providing residential rates that are among the lowest in the state.
Electric Emergencies
Downed power lines, power outages, inoperative streetlights or other emergencies should be reported to City Dispatch at 630-420-6187.
Electric Facility Clearance Requirements
The Department of Public Utilities – Electric contracts trimming to maintain clearances along the overhead electric power lines. 
Electrical Generator Safety
The City of Naperville is highly concerned about the electrical safety of their customers and employees. To support a safe work environment it is essential to work with the city to obtain a permit if you are planning to connect or have already connected an emergency electrical generation service to the electrical wiring system of  your house or property.
Electricity, Water and Wastewater Service
Naperville's Department of Public Utilities provides electricity, water and wastewater service. This page includes information on connection procedures and rates.
Energy Education Council
All members of the Energy Education Council consider energy and power education paramount in developing an improved understanding of energy’s applications, while at home, at school or on the job.
The city's collaboration with ENERGY STAR offers Naperville’s business and residents a strategic, corporate energy management program.
Home Energy Calculator
Consumers looking to lower the home energy costs can now go to Naperville’s website for some fast-and-fun assistance.
Illinois Municipal Electric Agency (IMEA)
On February 1, 2007, the City of Naperville became the 30th municipality to join the Illinois Municipal Electric Agency.
Before you plant trees or shrubs, erect a fence, or undertake any construction work, state law requires anyone digging to call JULIE (Joint Utility Locating Information for Excavators) for cable locations.
Landscaping Requirements Around Electrical Equipment
It is essential for DPU-E personnel to have the required clearances to safely work on electrical equipment.
Renewable Energy Program
For as little as $5 per month, you can make a difference for future generations by enrolling in the City's Renewable Energy Program.
Standby Generator Safety
To support a safe work environment for utility customers and employees, it is essential to work with the city and obtain a permit if you have or are planning to connect any emergency electric generation service to your house or property’s electrical wiring system.
Tree Line USA Utility
The Department of Public Utilities - Electric has received accreditation from The Arbor Day Foundation in cooperation with the National Association of State Foresters as a Tree Line USA utility.
Utility Bill Payment
Naperville Utility Billing information including payment options, bank draft application, budget billing application and an introduction to Naperville E-bill.
Utility Meters
The City reads electric and water meters on a monthly basis. Meter readers wear city identification badges.