Electric utilities use the System Average Interruptible Duration Index (SAIDI) to measure the reliability of electric utility systems. The SAIDI represents the average number of minutes each customer can expect to be without power in a given year. This is a comparison of Naperville with Com Ed SAIDI data.
Spending by City departments on goods and services. Dataset is used in Open Checkbook to create highly-interactive charts, graphs and tables how the City allocates public funds. Open Checkbook is part of the City's commitment to open data.
This is the City's calendar year 2017 annual operating budget. The information includes a breakdown by fund, category, department, division, and expense type. The City's total CY2017 expense budget is $444.88 million and the CY2017 revenue budget is $442.30 million.
A hate crime is defined by the FBI as a “criminal offense against a person or property motivated in whole or in part by an offender’s bias against a race, religion, disability, sexual orientation, ethnicity, gender, or gender identity.”
The State of Illinois Police (I.S.P.) and Federal Bureau of Investigations (F.B.I.) have specific reporting guidelines for Hate Crime data. Due to the Naperville Police Department’s proactive stance on this crime type, data presented on the Open Data Portal may differ with what is reported through ISP and the FBI. For information on the guidelines set forth, please visit https://www.isp.state.il.us/crime/ucrhome.cfm for further details.
All of the City's capital improvement projects over the next five years. This information categorizes the City's projects and includes information regarding funding sources, expense types, and asset types.
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.
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.