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Excelsior Energy’s Mesaba Energy Project Update for the NM-SPG August 16, 2006.

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Presentation on theme: "Excelsior Energy’s Mesaba Energy Project Update for the NM-SPG August 16, 2006."— Presentation transcript:

1 Excelsior Energy’s Mesaba Energy Project Update for the NM-SPG August 16, 2006

2 Current Project Parameters Two 606MW IGCC units ISDs 2011 and 2013 Primary Site- West Range –POI---Blackberry 230kV Sub –Near Taconite, MN in Itasca County Alternate Site- East Range –POI---Forbes 230kV Sub –Near Hoyt Lake, MN in St. Louis County Designated as an Innovative Energy Project under special MN Legislation

3 MISO LGIP Current Status

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5 Transmission Progress to Date –Transmission Concept Screening Study July 2003 –East Range GO Analysis August 2004 –East Range GI Request to MISO October 2004 Queue # , Project G477 First Unit 531/552MW ISD 2010 Network Resource Service –G477 Feasibility Study Report March months –West Range GO Analysis May 2005 –West Range GI Request May 2005 Queue # , Project G519 First Unit 600MW ISD 2010 Network Resource Service

6 Transmission Progress to Date –G519 ‘Out of Queue’ Study Agreement August 2005 –West & East Range Preliminary GO Facilities Engineering Designs December 2005 –West & East Range GO Analyses Updates December 2005 –G519 Feasibility Study Results December months –G477 & 519 System Impact Study Results April and 19 months –G477 & 519 restudy of short circuit results July 2006 –Second unit GI request submitted January 2006 Designated G597

7 Transmission Progress to Date –G597 Feasibility Study Report July 2006 –G477&519 Facilities Studies underway July 2006 MP has contracted to perform –G597 SIS Agreement Executed August 2006 Note: Between July 2004 and December 2005 Excelsior performed six series of powerflow studies to evaluate GO facilities and network reinforcements

8 MISO Study Results Project G477 SIS (Forbes POI) –Powerflow : No problems identified –Short Circuit : Several pre-existing over-dutied breakers but no new ones caused by G477 –Stability : All simulations are stable and within damping criteria. No transient low voltage violations. –Deliverability Analysis: Failed Awaiting MISO study proposal to continue NRIS process TSR submitted by Xcel for NITS (local capacity resource)

9 MISO Study Results Project G519 SIS (Blackberry POI) –Powerflow : Some issues identified during contingencies. Resolved with the addition of a new Boswell-Riverton 230kV line. –Short Circuit : Several pre-existing over-dutied breakers delete [plus four new 115kV breakers at Nashwauk Sub due to G519] –Stability : All simulations are stable and within damping criteria. No transient low voltage violations. New Boswell-Riverton 230kV line was included in these studies. –Deliverability Analysis: Failed Awaiting MISO study proposal to continue NRIS process TSR submitted by Xcel for NITS (local capacity resource

10 MISO Study Results Project G597 Feasibilty Study (Blackberry POI) –Powerflow: numerous local contingency violations identified Not unexpected with both MEP II and new 800MW NE MN unit included without any network upgrades –Short Circuit: four Nashwauk 115kV breakers overdutied Note: Modeling didn’t include proposed Minnesota Steel Plant or CAPX 2020 Projects

11 Other Mesaba Energy Project Progress Filing made 12/23/05 with MPUC for a PPA with Xcel Energy –under Innovative Energy Project Legislation Joint Siting/Routing Application made 6/16/06 for both units, all GO facilities, and gas pipeline. –Application accepted as complete 7/6/06.

12 Proposed GO Facilities G519: 9 mile double circuit 345kV steel pole structures, operated 230kV for MEP I G477: Two 345/115kV steel pole lines replacing existing 115kV structures for most of their 34 and 37 mile routings, with 345kV side operated 230kV for MEP I

13 West Range GO Facilities

14 West Range GO Routings

15 East Range GO Facilities

16 East Range GO Routings

17 Questions??


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