MISO revises interconnect deal to account for Wabash River coal retirements

The Midcontinent Independent System Operator filed on Dec. 4 at the Federal Energy Regulatory Commission a revised Generator Interconnection Agreement that covers the planned retirement in April 2016 of four coal-fired units at Duke Energy Indiana‘s Wabash River power plant.

The agreement is among Duke Energy Indiana, Duke Energy Business Services LLC as agent for Duke Energy Indiana, and MISO. Said the filing about the revision: “This change recognizes the unique factual circumstance that the Interconnection Customer has submitted to MISO an Attachment Y Definitive Retirement Notice and the units have been approved for retirement effective April 16, 2016.” That, by the way, is the exact date that a one-year extended deadline under the federal Mercury and Air Toxics Standards expires.

The affected units, installed at the Wabash River Station in West Terre Haute, Indiana, are:

  • Unit 2, 85 MW, Steam Turbine, Coal
  • Unit 3, 85 MW, Steam Turbine, Coal
  • Unit 4, 85 MW, Steam Turbine, Coal
  • Unit 5, 95 MW, Steam Turbine, Coal

Incidentally, Unit 1 at Wabash River was repowered in the 1990s with a coal gasification system controlled by another company. Duke has said that the coal-fired Wabash River Unit 6 is being evaluated for a conversion to natural gas. Duke Energy Indiana committed to retire or convert these Wabash River units by June 2018 in conjunction with a settlement associated with the 618-MW Edwardsport coal gasification project air permit. The Edwardsport project went into commercial operation in June 2013.

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.