Project: North Lake Energy, LLC

Customer: Arcdor Mittal

Location: East Chicago, Indiana

Capacity: 75 MW electric

Project Description:
Arcdor Mittal has historically produced a significant portion of their electricity requirements using onsite generation resources. Primary Energy worked with Arcdor Mittal to identify an additional opportunity to capture and recycle heat from Arcdor Mittal's principle blast furnace (No. 7), producing up to 75 MW of electricity.

Commercial Operation: May 1996

Benefits:
The North Lake Energy project is capable of supplying more than 20% of Arcdor Mittal's electricity requirements using an onsite waste fuel that had principally been flared. Primary Energy built and owns the project while Arcdor Mittal delivers steam from the existing blast furnace gas recovery boilers.

This facility has substantially reduced energy costs compared to purchased power alternatives while increasing reliability of the electric energy supply for Arcdor Mittal's plant operations.

The United States Environmental Protection Agency recognized North Lake Energy's 2007 operations for high environmental efficiency. The plant produced 215,000 fewer tons of carbon dioxide when compared to other plants using separate heat and power sources.