Wolverine nears air permit approval for Alpine gas-fired peaker project

The Michigan Department of Environmental Quality is taking comment until May 7 on a draft Permit to Install (PTI) for Wolverine Power Supply Cooperative‘s planned Alpine Power Plant in the northern Lower Peninsula of Michigan.

The permit application covers the proposed installation and operation of two natural gas-fired simple cycle combustion turbine generators (CTGs), one diesel-fired emergency generator, one diesel-fired emergency fire pump and two natural gas-fired CTG fuel heaters. The proposed facility will be located east of Flott Road on the north side of M-32 in Elmira Township, Otsego County, Michigan.

The Alpine facility will be a a peaking plant that will generate electricity as required by the Midcontinent Independent System Operator, primarily during peak electric demand time periods.

Each CTG would be rated at a nominal 203 MW. The other components are the nominal 1,500 kilowatt (kW) diesel-fired emergency generator, the nominal 347 horsepower diesel-fired emergency fire pump and the two nominal 3.5 million British thermal unit per hour natural gas fired CTG fuel heaters. The fuel heaters pre-heat the natural gas prior to combustion in the CTGs. The facility has also proposed to limit the potential to emit of the facility to less than Prevention of Significant Deterioration (PSD) thresholds of 250 tons per year (tpy) for NOx and carbon monoxide (CO).

The CTGs would have fuel restriction of 14,567 million standard cubic foot (MMSCF) per year on a 12-month rolling time period basis, and the requirement to calculate daily, monthly and 12-month rolling time period emissions of NOx and CO.

Wolverine’s project website shows Alpine as slated for a 2015 construction start, with completion in 2016. Said the website about this draft permit: “Wolverine received a draft air quality permit from the Michigan Department of Environmental Quality (MDEQ) for the Alpine Power Plant. At this time, the Air Quality Division is holding a 30-day public comment period and, if requested in writing, a public hearing will be scheduled to allow all interested parties the opportunity to comment. If requested, the public hearing will be held at the Elmira Township Hall on May 13. Wolverine anticipates that the MDEQ will make a final decision regarding the Alpine Power Plant air quality permit sometime prior to mid-June 2015.”

Owned by its members, Wolverine is a not-for-profit cooperative that provides wholesale power and transmission services to five electric distribution co-ops, and two alternative electric suppliers.

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.