​Investor-Owned Utility Annual Report System

The Investor-Owned Utility Annual Report System (IOUARS) is used by investor-owned electric and gas utilities to prepare their Annual Reports.  The standard filing deadline is April 1.

Notice: April 2, 2012

IOUARS release 3.11 is not available for download and installation.  A list of enhancements is available below.  There is only one installation option for this release: Client-Only Installation.  If you already have IOUARS version 3.10 or higher installed on this machine or will be using a 3.10 or higher database already installed on a server, you may choose to just install the 3.11 Client-only version.  If you are installing on a new machine and do not already have the 3.00 or higher database available, you must first install the ver. 3.10 Full Installation with Database.

Notice: January 27, 2012

IOUARS release 3.10 is not available for download and installation.  A list of enhancements is available below.  Please note that you have two installation options for this release: Full Installation with Database, or Client-Only Installation.  If you are installing in a networked environment and already have the version 3.00 or higher database already installed on a shared server, you may choose the Client-Only Installation.  If you are installing on a new machine and do not already have the 3.00 or higher database available, please choose the Full Installation with Database.

Files Available for Download
​Right-click on icon to download​Description
The following file(s) should be downloaded to your computer.​ ​
​IOUARS ver. 3.10

​IOUARS ver. 3.10 Full Installation with Database - Completed release that installs the full IOUARS system.

​IOUARS ver. 3.11​IOUARS ver. 3.11 Client-Only Installation - Client-only release the installs the IOUARS programs. Depends on a prior installation of ver. 3.00 or higher with a valid database file.
Documentation​ ​
IOUARS3.10.pdf​Changes for IOUARS Version 3.10
IOUARS3.11.pdf​Changes for IOUARS Version 3.11
IOUARSScheduleDependencies.pdf​Report listing schedule dependencies for derived values
IOUARSNoticeStoredGasAccount.pdf​Notice concerning Detail of Stored Gas Account, page G-12 (2/26/08)
IOUARSExportInstructions.pdf​Directions for Filing the Annual Report


Instructions for Downloading

Note: If you wish to read a PDF file and already have your Acrobat Reader (version 5.0 or higher) installed, you may simply click on the link for the file you wish to view (Acrobat Reader should automatically launch and open the file).

Windows Internet Explorer

  1. Right click on the icon for the file you wish to download.

  2. Choose "Save Target As" from the menu.

  3. Your browser will display a "Save As" dialogue box.  Note the folder to which the file will be copied and the file name. Click the "OK" button.

Staff Contact:

Sheena Basra
(608) 266-5423
sheena.basra@wisconsin.gov