Illinois Pipeline Project Gets $890 Million Green Light
Published Date: 7/17/2026
Notice
Summary
Guardian Pipeline is planning a big expansion in Illinois and Wisconsin, adding new pipelines and compressor stations to boost natural gas flow by over 500,000 dekatherms daily. This $890 million project aims to improve energy delivery in the Upper Midwest and is already fully booked by customers. If you want to get involved or share your thoughts, you need to act before the set deadline!
Analyzed Economic Effects
2 provisions identified: 1 benefits, 0 costs, 1 mixed.
Major Upper Midwest Gas Capacity Expansion
Guardian filed an application on July 1, 2026 to build the Guardian 3 Expansion Project in Illinois and Wisconsin. The project would construct about 42.6 miles of 36-inch pipeline (Joliet Loop), about 25.5 miles of 36-inch pipeline (Sycamore Loop), add two 11,187 HP gas-fired compressors at Joliet, modify Sycamore compression, build a new 9,000 HP electric-driven compressor in Dodge County, remove capacity controls at Bluff Creek, and construct a Sheboygan Meter Station. The Project will provide approximately 536,903 dekatherms per day of additional firm transportation capacity in the Upper Midwest and Guardian estimates total project cost at approximately $890,000,000.
Proposed Rate Treatment and Subscription Status
In its July 1, 2026 application Guardian says the Project is fully subscribed under executed binding precedent agreements with unaffiliated shippers and proposes incremental recourse rates and rolled-in rate treatment for the Project's fuel and electric power costs. The application requests authorization under the Natural Gas Act and asks the Commission to consider those proposed rate treatments as part of the proceeding.
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Key Dates
Department and Agencies
Related Federal Register Documents
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2026-17631, ETC Tiger Pipeline, LLC; Notice of Scoping Period Requesting Comments on Environmental Issues for the Proposed Franklin Farms Project
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