March 1, 2012 / 6:37 PM / 6 years ago

TIMELINE-ITC Michigan-Ontario power transformers

 March 1 (Reuters) - The U.S. Department of Energy
approved power transmission company ITC Holdings Corp's 
long-awaited phase angle regulator power transmission project on
the Michigan-Ontario border, which could save consumers in the
area millions of dollars in electric costs, ITC said Thursday.	
 ITC projected the phase-shifting transformers, also known as
phase angle regulators (PARs), would enter service in the second
 The following is a timeline for the PARs:	
1975 -           Ontario Hydro's Keith PAR in Ontario enters	
              service. This is the first of the five PARs	
              on the Michigan-Ontario interface and was	
              originally installed to control local flows	
              between Michigan and Ontario	
Early 1990s -    Unscheduled power flows on the transmission	
              lines in Ontario, known as the Lake Erie loop	
              flow, increase significantly, using up	
              transmission capacity and leading to	
              curtailments of power transfers between	
              Ontario, New York and Michigan	
1998 -           Detroit Edison, the former parent of ITC, and	
              the former Ontario Hydro develop plans for	
              Detroit Edison to install a PAR at Bunce	
              Creek in Michigan and Ontario Hydro to	
              install two PARs at Lambton in Ontario. The	
              Lambton PARs are for two separate lines that	
              connect the Ontario and Michigan grids.	
              Ontario Hydro is later broken into several	
              companies, including transmission firm Hydro	
1998 -           Detroit Edison applies with U.S. Department of	
              Energy to modify a presidential permit to	
              allow for installation of the Bunce Creek PAR	
2000 -           Swiss-Swedish multinational ABB 	
              delivers first PAR to Lambton	
2000 -           Department of Energy grants presidential permit	
              to ITC for Bunce Creek PAR	
2001 -           First PAR at Lambton fails, has to be  	
              returned to ABB for rebuild	
2002 -           ABB delivers second PAR to Lambton 	
2003 -           The original Bunce Creek PAR, also	
              made by ABB, fails while in service in March.	
              Shortly afterward, the tower supporting the	
              Canadian side of the Bunce Creek-Scott	
              transmission line collapses in bad weather	
2005 -           ABB delivers first PAR back to Lambton, Hydro	
              One says it is ready to operate the Lambton	
2006 -           The tower and line for the Bunce Creek-Scott	
              line are replaced. ITC orders two new PARs	
              from Smit Transformer of the Netherlands to	
              replace Bunce Creek PAR that failed in 2003	
2008 -           New York Independent System Operator says Lake 	
              Erie loop flow costs state's market almost $100	
              million in first	
              seven months of the year. The ISO said PARs	
              would have helped reduce transmission	
2008-2009 -      Smit Transformer delivers the two PARS to	
              Bunce Creek	
2009 -           ITC applies with Department of Energy	
              to amend presidential permit to replace the	
              failed Bunce Creek PAR with two PARs	
2010 -           ITC completes installation of new Bunce Creek	
Aug 2011 -       ITC and Midwest ISO complete operating	
              agreements with Ontario power grid operator	
              IESO and Hydro One	
2011 -           ITC and Midwest ISO working on cost-allocation	
              agreement with New York ISO and PJM power	
              grid operators before FERC, and settlement	
              for presidential permit before the Department	
              of Energy	
2012 -           Department of Energy approves of presidential	
              permit. ITC expects PARs to enter service in	
              second quarter. Cost allocation dispute between	
              ITC, MISO, PJM and New York ISO at FERC	
 (Reporting By Scott DiSavino; Editing by Alden Bentley)	
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