Map displaying the locations of Duplex, Apartment/Condo, and Townhouse permits issued by the City of Naperville, IL.

Citywide total daily electric load (usage) measured hourly, presented here as a daily total beginning on January 1, 2012 through last updated date.

A monthly surcharge has been added to customer utility bills to help fund mandated improvements to the Springbrook Water Reclamation Center for the purpose of removing phosphorus nutrients. The purpose of this surcharge is to fund 50% of the estimated cost of these improvements.

Duplex, Apartment/Condo, and Townhouse permits issued by the City of Naperville, IL. Updated at the beginning of the month.

The City's outstanding debt service schedule. The dataset includes annual principal and interest payments for all outstanding debt.

Citywide total daily electric load (usage) measured hourly, presented here as a daily total.

Map displaying location information and building attributes of the identified Strategic Anchors in Naperville, IL.

This dataset quantifies watermain leaks discovered during surveys of the water system utilizing acoustical listening devices. From 2013-2017 a single City-wide survey was conducted per calendar year. Beginning in 2018 two City-wide surveys were completed.

Map displaying the locations of Commercial Development permits issued by the City of Naperville, IL.

System Average Interruption Duration Index (SAIDI) Outage in Minutes. SAIDI is the average outage duration for each customer served, and is calculated as the sum of all customer interruption durations divided by the total number of customers served . SAIDI is measured in minutes or hours over the course of a year, and according to IEEE Standard 1366-1998 the median value for North American utilities is approximately 1.50 hours.