IOU Annual Report Data

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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 PSCIOUAnnualReports@wisconsin.gov or phone at (608) 266-1247.

Financial Section Electric Operating Section Gas Operating Section Water Operating Section Report: Accounts Recievable (Accts. 142-143) Balance Sheet Common Plant in Service Construction Activity for Year Construction Completed During Year Detail of Certain General Expense Accounts Financial Consumer Advocate Funding Income Statement Income Statement - Revenues and Expenses by Utility Type Investments and Funds Regulatory Commission Expenses Return on Rate Base Computation Statement of Cash Flows Summary of Utility Plant and Accumulated Provisions for Depreciation and Amortization and Depletion 2019+ Summary of Utility Plant and Accumulated Provisions for Depreciation and Amortization and Depletion Pre 2019 Taxes Accrued (Acct. 236) Reports are in order based on their corresponding page number in the Annual Report Industry Type: All Electric Gas Water

Report Year 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004

Select One of the following options: Report Class Major Non-Major Utility/Utilities Please select Utility(s) American Transmission Company LLC City Gas Company Consolidated Water Power Company Dahlberg Light And Power Company Madison Gas And Electric Company Midwest Natural Gas, Inc. North Central Power Company Inc Northern States Power Company (WIS) Northwestern Wisconsin Electric Co Pioneer Power And Light Company St Croix Valley Natural Gas Company, Inc Superior Water Light And Power Company Westfield Milling & Electric Light Company Wisconsin Electric Power Company Wisconsin Gas LLC Wisconsin Power And Light Company Wisconsin Public Service Corporation Maximum selected are 10 utilities

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