IOU Annual Report Data

Our web-based IOU annual report application offers you information from the PSC's internal Investor-Owned Utility (IOU) Annual Report database.

Most annual reports are filed between January 1st and May 1st. Each year there are a few reports which are filed late and occasionally utilities file revised reports. This data should be considered point-in-time and subject to change.

The Public Service Commission does not guarantee the accuracy of the information found in this database. The data is simply extracted from what is provided to us by the utilities in their annual reports. If you find inaccurate data, please contact the Annual Report Helpdesk.

If you have any questions about the contents of the information displayed by these applications, please contact us by e-mail at or phone at (608) 266-1247.
Financial Section Electric Operating Section Gas Operating Section Water Operating Section

Reports are in order based on their corresponding page number in the Annual Report
Industry Type:
Report Year
Select One of the following options:
Please select Utility(s)

Maximum selected are 10 utilities

This query is going to return more than 30,000 rows!
If you select fewer years or fewer utilities, you can reduce the number of rows.
Are you sure you want to proceed?