Michigan DEQ seeks input on air permit for 1,000-MW Indeck Niles project

The Michigan Department of Environmental Quality’s (MDEQ) Air Quality Division is taking comments until Dec. 7 on a proposed air permit for a new natural gas-fired combined-cycle electric power plant for Indeck Niles LLC.

The proposed new natural gas combined-cycle (NGCC) power plant would be located at 2200 Progressive Drive in Niles, Michigan. The site is currently a vacant railroad yard. The plant will feature state of the art turbine models with the latest technologies (“H” and “J” classes), which utilize higher firing temperatures (up to 1,620 degrees F) to achieve optimal efficiency of the units. Each combustion turbine generator (CTG) is to be connected to a HRSG, creating a single emission unit, which is referred to as a CTG/HRSG train.

The maximum design heat input capacity, on a fuel heat input basis, for each CTG will not exceed 3,421 MMBTU/hr and for each duct burner will not exceed 740 MMBTU/hr. Two combined-cycle natural gas-fired CTGs with HRSGs will be laid out in a 2×1 configuration with a steam turbine generator.

The proposed new plant will consist of the following equipment:

  • Two combustion turbine generators (CTG);
  • Two heat recovery steam generators (HRSG);
  • One auxiliary boiler;
  • Two fuel heaters;
  • One diesel-fired emergency reciprocating internal combustion engine;
  • One emergency diesel fire pump engine;
  • Three water/condensate storage tanks;
  • Two diesel fuel tanks;
  • One aqueous ammonia storage tank; and
  • Up to 44 space heaters.

The proposed turbine generators, heat recovery steam generators, auxiliary boiler, fuel heaters, and space heaters will all burn natural gas. The proposed emergency engine and fire pump engine will burn diesel fuel.

One CTG and one HRSG make up a CTG/HRSG train and the steam from both trains is sent to a steam turbine to generate more electricity. To control nitrogen oxides (NOx) emissions, each train will be equipped with dry low NOx burners and selective catalytic reduction. To control carbon monoxide and volatile organic compound emissions, each train will be equipped with an oxidation catalyst. The auxiliary boiler will be equipped with low NOx burners and flue gas recirculation to control NOx emissions.

Separately, Indeck Energy Services has launched a public awareness website for this 1,000-MW Indeck Niles Energy Center. The location of the project within the Niles Industrial Park also enables the company to minimize traffic congestion and environmental hazards associated with building in a city center. Indeck Energy said it is working through the permitting process now. Based on timelines established by the Michigan DEQ, it anticipates permitting to take a minimum of 12 months. Construction is projected to take 2.5 years after a fall 2017 construction start, with the facility opening in 2020.


  • Indeck Niles LLC on Sept. 7 filed with the Federal Energy Regulatory Commission (FERC) a notice of self-certification as an Exempt Wholesale Generator. It said the facility will interconnect with American Electric Power and will sell power into the PJM Interconnection market. A company contact is: Wendy Taube, Counsel, Indeck Niles LLC, 600 N. Buffalo Grove Road, Suite 300, Buffalo Grove, IL 60089, wtaube@indeckenergy.com.
  • Indeck Energy Services proposes to interconnect a 994-MW natural gas-fired facility to the AEP transmission system in Michigan, said a PJM study on the project dated June 2016. The point of interconnection is located approximately one mile west of the existing Kenzie Creek 345/138 kV substation. This point will tie together the Cook–Kenzie Creek 345 kV circuit section and the Cook–East Elkhart 345 kV circuit section via a new switching station. The proposed project is under PJM queue #AA2-116.
About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.