ITC Transmission Company
Generator Status Verification
ITC has scheduled the following transmission outage which impacts generation.
ITC plans to contact the generator and/or their designee to verify the generator
status in preparation for the planned outage.
MISO Transmission Planned Outage:
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
06/03/2016
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
12/11/2015
Posting Date:
4/15/2015
1-10340608
120kV
Minden
Rapson
Minden – Rapson 120 kV Line
06/07/2016 0630 EDT
06/09/2016 1830 EDT
Planned
The output of the Sigel Wind Park and Big Turtle must be restricted to 40 MW
gross output for the duration of this outage, to prevent Tie 5611 from
exceeding its emergency rating, for the contingency loss of Rapson – Seaside,
Harbor Beach – Seaside, or Rapson – Wyatt #2 120kV lines.
1-09610058
345kV
Kilgore
Lee
Kilgore – Lee 120 kV Line
12/07/2015 1330 EDT
12/11/2015 1400 EDT
Planned
With the Greenwood – Kilgore line out of service and the contingency
loss of the Greenwood Transformer 301, the System Service 61
transformer at Greenwood will no longer have a power source that is
capable of supporting and properly shutting down the Greenwood MTG
1. Therefore Greenwood MTG 1 must be made “unavailable”. The
Greenwood peakers can run un-restricted for the duration of this outage.
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1-07594018
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
3/2/2015
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1/5/2015
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
12/30/2014
345kV
Greenwood
Greenwood
Greenwood Transformer 301
04/18/2015 0700 EDT
04/19/2015 1600 EDT
Planned
The combined output of Michigan Wind I and II will be restricted to 50 MW
to prevent any post-contingent overloads on the Sandusky 120/40kV
Transformer and 40kV tie lines out of Sandusky.
1-07244968
120 KV
Arrowhead
Bad Axe
Arrowhead - Bad Axe 120kV
3/03/2015 0700 EST
3/03/2015 1830 EST
Planned
The combined output of Harvest Wind I and II will be restricted to 70 MW to
prevent any post-contingent overloads on the Arrowhead 120/40kV
Transformer and 40kV tie lines out of Arrowhead.
1-06921575
120 KV
Bad Axe Bus 102
Bad Axe Bus 102 120kV
1/08/2015 0630 EST
1/08/2015 1630 EST
Planned
The combined output of Harvest Wind I and II will be restricted to 70 MW to
prevent any post-contingent overloads on the Arrowhead 120/40kV
Transformer and 40kV tie lines out of Arrowhead.
N/A
120 KV
Lee
Sandusky
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Lee - Sandusky 120kV
12/31/2014 0151 EST
4/15/2015 1530 EST
Planned
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
12/5/2014
1-06729570
120 KV
Remer
St. Clair
Remer – St. Clair #2 120kV line
12/08/2014 0630 EST
12/09/2014 1830 EST
Planned
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
11/26/2014
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
10/03/2014
There are no restrictions to Michigan Wind One and Two PRE-contingent.
The combined output of Michigan Wind One and Two will be restricted to
50MW when the Sandusky 120/40kV Transformer must be placed back in
service. The restriction will lift once the Sandusky Transformer can be reopened.
Dean Units GT-1 and GT-2 must be unavailable for the duration of this
outage.
1-06721583
120 KV
Arrowhead
Cosmo Tap
Arrowhead – Bad Axe 120kV
12/02/2014 0700 EST
12/06/2014 1730 EST
Planned
The combined output of Harvest Wind I and II will be restricted to 85MW to
prevent the overload of several 40kV tie lines into the Arrowhead substation.
1-06424528
120 KV
Minden
Rapson
Minden – Rapson 120kV
10/06/2014 0830 EST
Planned End Date/Time:
Outage Type:
Comments:
10/10/2014 1400 EST
Planned
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
8/15/2014
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/20/2014
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/10/2014
The output of the Sigel Wind Park must be restricted to 40 MW gross output
for the duration of this outage, to prevent Tie 5611 from exceeding its
emergency rating, for the contingency loss of Rapson – Seaside, Harbor Beach
– Seaside, or Rapson – Wyatt #2 120kV lines.
1-05910492, 1-06194058
120 KV
Minden
Rapson
Minden – Rapson 120kV
8/18/2014 0800 EST
8/24/2014 1700 EST
Planned
The output of the Sigel Wind Park must be restricted to 40 MW gross output
for the duration of this outage, to prevent Tie 5611 from exceeding its
emergency rating, for the contingency loss of Rapson – Seaside, Harbor Beach
– Seaside, or Rapson – Wyatt #2 120kV lines.
1-05620671
120 KV
Seaside
Rapson
Rapson - Seaside 120kV
6/11/2014 0630 EST
6/24/2014 1700 EST
Planned
The output of the Sigel Wind Park must be restricted to 45 MW gross output
for the duration of this outage, to prevent Tie 5611 from exceeding its
emergency rating, for the contingency loss of the Minden – Rapson line.
1-05620671
120 KV
Seaside
Rapson
Rapson - Seaside 120kV
6/11/2014 0630 EST
6/24/2014 1700 EST
Planned
The output of the Sigel Wind Park must be restricted to 40 MW gross output
for the duration of this outage, to prevent Tie 5611 from exceeding its
emergency rating, for the contingency loss of the Minden – Rapson line.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/23/2014
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
4/23/2014
1-05597918, 1-05597919
120 KV
Minden
Rapson
Minden - Rapson 120kV
5/29/2014 0800 EST
6/10/2014 1700 EST
Planned
The output of the Sigel Wind Park must be restricted to 40 MW gross output
for the duration of this outage, to prevent Tie 5611 from exceeding its
emergency rating, for the contingency loss of Rapson – Seaside, Harbor Beach
– Seaside, or Rapson – Wyatt #1 120kV lines.
1-05227240
120 KV
Kilgore
Lee
Kilgore – Lee 120kV
5/17/2014 0700 EST
5/19/2014 1900 EST
Planned
Greenwood MTG 1 must be offline for the duration of this outage.
A condition of operation of any condensing steam unit, including
Greenwood, is the unit must have two feeds from outside the plant
capable of supporting the plant internal electrical load. This is necessary
so that, in the event of loss of one of the feeds, there is an immediate
availability of the second feed in order to safely shutdown the unit.
Greenwood MTG 1 must not be available for operation, unless outside
plant power is available to System Service 61 transformer via both
Transformer 301 and the Greenwood-Kilgore line. These are the only
two sources individually capable of supporting operation and a proper
shutdown of Greenwood. Therefore Greenwood MTG 1 must be made
“unavailable”. The Greenwood peakers can run un-restricted for the
duration of this outage.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
4/23/2014
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
3/27/2014
1-05014250
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
2/26/2014 0600 EST
5/16/2014 2000 EST
Planned
For the duration of this outage, because the entire 345kV Greenwood yard is
out of service, there is no outlet for any generation at Greenwood. This
includes both Greenwood MTG 1 and Greenwood Peakers CTG 11-1, 11-2,
and 12-1.
1-05014250
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
2/26/2014 0600 EST
5/05/2014 2000 EST
Planned
Greenwood Peakers
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers
CTG 11-1, 11-2 and 12-1 can run. The total output (all three peakers)
must be below 75 MW. Above 75 MW, for the loss of GreenwoodKilgore line, Bennett Transformer 102 exceeds its tripping limit.
Other Considerations
It is recommended to reschedule the outage if Greenwood generation is
expected to be online at any time during the outage due to the following
reasons:

A condition of operation of any condensing steam unit,
including Greenwood, is the unit must have two feeds from
outside the plant capable of supporting the plant internal
electrical load. This is necessary so that, in the event of loss of
one of the feeds, there is an immediate availability of the second
feed in order to safely shutdown the unit.

Greenwood MTG 1 must not be available for operation, unless
outside plant power is available to System Service 61
transformer via both Transformer 301 and the Greenwood-
Kilgore line. These are the only two sources individually
capable of supporting operation and a proper shutdown of
Greenwood.

Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
If Greenwood-Bennett is the only power source available, it is
not capable of starting any of the required large motors at
Greenwood to start the plant. It is not capable of supporting the
plant auxiliary loads while MTG 1 is already operating nor is it
capable of supporting the safe shutdown of the plant. It can be
used to maintain lights, ventilation, etc. in the plant, when the
plant is already in a safe shutdown condition.
1/15/2014
1-04793979
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
1/21/2014 0600 EST
3/29/2014 1900 EST
Planned
Greenwood Peakers
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers
CTG 11-1, 11-2 and 12-1 can run. The total output (all three peakers)
must be below 75 MW. Above 75 MW, for the loss of GreenwoodKilgore line, Bennett Transformer 102 exceeds its tripping limit.
Other Considerations
It is recommended to reschedule the outage if Greenwood generation is
expected to be online at any time during the outage due to the following
reasons:

A condition of operation of any condensing steam unit,
including Greenwood, is the unit must have two feeds from
outside the plant capable of supporting the plant internal
electrical load. This is necessary so that, in the event of loss of
one of the feeds, there is an immediate availability of the second
feed in order to safely shutdown the unit.

Greenwood MTG 1 must not be available for operation, unless
outside plant power is available to System Service 61
transformer via both Transformer 301 and the GreenwoodKilgore line. These are the only two sources individually
capable of supporting operation and a proper shutdown of
Greenwood.

Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
If Greenwood-Bennett is the only power source available, it is
not capable of starting any of the required large motors at
Greenwood to start the plant. It is not capable of supporting the
plant auxiliary loads while MTG 1 is already operating nor is it
capable of supporting the safe shutdown of the plant. It can be
used to maintain lights, ventilation, etc. in the plant, when the
plant is already in a safe shutdown condition.
11/27/2013
1-04620813
120 KV
Custer
Whiting
Custer - Whiting 120kV Line
12/2/2013 0700 EST
12/3/2013 1530 EST
Planned
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-3, and 11-4) should be available and
used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
11/26/2013
1- 04650477
120 KV
St. Clair
Posting Date:
11/8/2013
Bus 111
12/2/2013 06:30 EDT
12/13/2013 17:30 EDT
Planned
During this outage the output of St. Clair Units #2 and #3, CTG 11, and
DG 12-1 and 12-2 will need to be restricted to a total of 175 MW to
prevent overloads on the St. Clair Reactor 102 for loss of the St. Clair –
Jacob – Victor 120kV path.
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1- 04585539
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
11/7/2013
120 KV
Leppek
Wyatt
Leppek – Wyatt 120kV Line
12/2/2013 0630 EST
12/31/2013 2030 EST
Planned
Michigan Wind One & Two will be restricted to 50 MW to prevent the
overloads on Sandusky Transformer 101 and 40kV lines in the area for the
loss of the Lee - Sandusky 120kV line.
2-00460498
120 KV
Enrico Fermi PP
Seville 1
Fermi Breaker GK
11/18/2013 0700 EST
11/22/2013 1530 EST
Opportunity
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-1, 11-2, 11-3, and 11-4) should be
available and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
10/24/2013
Posting Date:
Outage #:
KV:
10/16/2013
1-04373594
120kV
1-04440782
120 KV
Leppek
Wyatt
Leppek – Wyatt 120kV Line
10/29/2013 0630 EST
11/2/2013 2030 EST
Planned
Michigan Wind One & Two will be restricted to 50 MW to prevent the
overloads on Sandusky Transformer 101 and 40kV lines in the area for the
loss of the Lee - Sandusky 120kV line.
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Monroe
Monroe Bues 102 and 103 including Transformer 304
10/21/13
11/1/13
Planned
In order to provide the necessary voltage support and delta V
requirements at the Fermi PP 120 kV station, all Fermi PP Peaking
Units (11-2, 11-3, and 11-4) should be available and used as necessary
both pre and post-contingency..
Real-time security/contingency
analysis should be used in determining if/how many peakers should be
utilized.
Fermi PP Peaking Unit 11-1 is reserved for emergency black-start
purpose and can be dispatched only at the discretion of the plant.
At least 2 units at Whiting must be available and used as necessary.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
10/9/2013
1-04366697
120 KV
Radka
Radka 120kV Bus 101
10/17/2013 0700 EST
10/19/2013 1530 EST
Planned
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-1, 11-2, 11-3, and 11-4) should be
available and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
10/1/2013
2-00377098
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
10/7/2013 0700 EST
10/25/2013 2100 EST
Planned
Greenwood Peakers on and Michigan Wind Off
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers
CTG 11-1, 11-2 and 12-1 can run. The total output (all three peakers)
must be below 75 MW. Above 75 MW, for the loss of GreenwoodKilgore line, Benet Transformer 102 exceeds its tripping limit.
Greenwood Peakers on and Michigan Wind On
The loss of Leppek-Wyatt line will overload the 40kV lines in the area.
Therefore, the combined output of Greenwood peakers and Michigan
Wind is restricted to 75 MW gross output for the duration of this
outage.
Other Considerations
It is recommended to reschedule the outage if Greenwood generation is
expected to be online at any time during the outage due to the following
reasons:
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:

A condition of operation of any condensing steam unit,
including Greenwood, is the unit must have two feeds from
outside the plant capable of supporting the plant internal
electrical load. This is necessary so that, in the event of loss of
one of the feeds, there is an immediate availability of the second
feed in order to safely shutdown the unit.

Greenwood MTG 1 must not be available for operation, unless
outside plant power is available to System Service 61
transformer via both Transformer 301 and the GreenwoodKilgore line. These are the only two sources individually
capable of supporting operation and a proper shutdown of
Greenwood.

If Greenwood-Bennett is the only power source available, it is
not capable of starting any of the required large motors at
Greenwood to start the plant. It is not capable of supporting the
plant auxiliary loads while MTG 1 is already operating nor is it
capable of supporting the safe shutdown of the plant. It can be
used to maintain lights, ventilation, etc. in the plant, when the
plant is already in a safe shutdown condition.
9/19/2013
1-04195056
120 KV
Rapson
Wyatt
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Rapson – Wyatt #2 120kV line
9/22/2013 0630 EST
9/27/2013 0830 EST
Planned
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
9/4/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
8/29/2013
1-04184052
120 KV
Atlanta
Tuscola
Atlanta - Tuscola 120kV line
9/17/2013 0630 EST
9/17/2013 2030 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
Thumb Load levels above 450MW (ITC load 9000MW).
1-04195821
120 KV
Arrowhead
Tuscola
Arrowhead - Tuscola 120kV line
9/22/2013 0700 EST
9/22/2013 1200 EST
Planned
Harbor Beach Unit 1 must run with an output of 45 MW (gross).
The combined output of Harbor Beach, Michigan Wind 1 and 2, Harvest
Wind, and Sigel must also be restricted to 200MW for the duration of this
outage.
Posting Date:
MISO Ticket Number:
KV:
8/29/2013
1-04195823
120 KV
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Leppek
Wyatt
Leppek – Wyatt 120kV line
9/22/2013 1200 EST
9/22/2013 1630 EST
Planned
Harbor Beach Unit 1 must run with an output of 45 MW (gross).
Michigan Wind 1 and 2 will be restricted to 75MWfor the duration of
this outage.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
8/22/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
8/9/2013
N/A
N/A
N/A
N/A
N/A
8/9/2013
N/A
N/A
Due to the pending retirement of Harbor Beach generation ITC is providing the
following information to ensure availability of generation is maintained to provide
for reliable operation of the transmission system in the Thumb area throughout the
summer and fall timeframes. The anticipated Harbor Beach dispatch for voltage
support, capacity needs and scheduled transmission outages through the fall of
2013 are provided below. Note that this information does not include local
dispatch needs due to 40 kV distribution outages in the area.
2-00380396 AND 2-00380899
120 KV
Minden – Rapson AND Rapson – Wyatt #1 120kV lines
9/3/2013 0630 EST
9/21/2013 2030 EST
Planned
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Harbor Beach Run Requirement due to scheduled transmission facility
outages:
August 2013
There are no scheduled outages that will require Harbor Beach to run.
September 2013
There are 2 outages planned for the month of September that will require Harbor
Beach to run.
 Lepek – Wyatt 120kV line: 1 day duration (9/10/2013)
 Arrowhead – Tuscola 120kV line: 1 day duration (9/12/2013)
It is currently anticipated that beyond October 1, 2013 Harbor Beach will not be
required as a must run unit for scheduled transmission outages. The two Bauer –
Rapson 345kV lines and three 345/120kV Rapson Transformers are scheduled to
be placed into service on this date. This date may change and is dependent on
construction progress; weather forecast; unplanned generation, transmission, and
distribution outages; and obtaining the necessary outages cited above. ITC will
review and update this posting periodically as well as when information resulting
in material changes become available.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
7/17/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
7/11/2013
1-04015240
120 KV
Hunters Creek
Hunters Creek Bus 102
7/26/2013 0630 EST
7/26/2013 1630 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
Thumb Load levels above 450MW (ITC load 9000MW).
1-03949486
120 KV
Hunters Creek
Hunters Creek Bus 101
7/24/2013 0700 EST
7/25/2013 1530 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
Thumb Load levels above 450MW (ITC load 9000MW).
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/17/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
7/17/2013
1-0905103
120 KV
Tuscola
Tuscola Section Breaker HG
7/22/2013 0630 EST
7/23/2013 1630 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
all Thumb load levels.
1-03994845
120 KV
Arrowhead
Bad Axe
Arrowhead – Bad Axe 120kV line
7/20/2013 0630 EST
7/21/2013 1930 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
all Thumb load levels.
Harvest Wind I and II will NOT be able to run for the duration of this outage.
The combined output of Harbor Beach, Sigel, and Michigan Wind I and II will
be restricted to 110MW for the duration of this outage.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
6/20/2013
1-03875969
120 KV
Hunters Creek
Stratford
Hunters Creek – Stratford 120kV line
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/26/2013 0700 EST
6/26/2013 1530 EST
Planned
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/7/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
6/7/2013
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
Thumb Load levels above 450MW (ITC load 9000MW).
1-03850198
120 KV
Tuscola
Tuscola Section Breaker HG
6/19/2013 0700 EST
6/19/2013 1530 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for
all Thumb load levels.
1-03821419
120 KV
Rapson
Rapson Bus 104 + Rapson – Wyatt #2 120kV line
6/17/2013 0630 EST
6/19/2013 1700 EST
Planned
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
This outage may require the use of Harbor Beach peakers if the Rapson
– Wyatt #1 120kV line is lost.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
6/7/2013
1-03818661
120 KV
Rapson
Rapson Bus 102 + Rapson – Wyatt #1 120kV line
6/10/2013 0630 EST
6/12/2013 1700 EST
Planned
Comments:
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
This outage may require the use of Harbor Beach peakers if the Rapson
– Wyatt #2 120kV line is lost.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/27/2013
1-03696215
120 KV
Arrowhead
Tuscola
Arrowhead – Tuscola 120kV line
6/5/2013 0700 EST
6/7/2013 1530 EST
Planned
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross) for all
Thumb load levels for the entire duration of the outage.
The maximum combined output of Harbor Beach Unit 1, and all thumb wind farms
(Michigan Wind 1, Michigan Wind 2, Harvest Wind and Sigel) must be restricted
to 200 MW for the duration of this outage.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Thumb Load
Min HBHPP Output (Gross)
Up to 400 MW
400 - 430 MW
430 - 450 MW
450 - 475 MW
45 MW
55 MW
70 MW
85 MW
Max Combined Wind
Farm Output
155 MW
145 MW
130 MW
115 MW
5/27/2013
1-03798033
120 KV
Rapson
Wyatt
Rapson – Wyatt #2 120kV line
6/4/2013 0700 EST
6/4/2013 1630 EST
Planned
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
This outage may require the use of Harbor Beach peakers if the Rapson
– Wyatt #1 120kV line is lost.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/22/2013
N/A
N/A
N/A
N/A
N/A
5/22/2013
N/A
N/A
Due to the pending retirement of Harbor Beach generation ITC is providing
the following information to ensure availability of generation is maintained to
provide for reliable operation of the transmission system in the Thumb area
throughout the summer and fall timeframes. The anticipated Harbor Beach
dispatch for voltage support, capacity needs and scheduled transmission
outages through the fall of 2013 are provided below. Note that this
information does not include local dispatch needs due to 40 kV distribution
outages in the area.
High Load Harbor Beach Requirement
If the Thumb area load exceeds 500MW on any given day, HB#1 will be
required to run at a output between of 40 – 90MW. As a reference Harbor
Beach was required to run a total of 29 days throughout the summer of 2012
due to the Thumb area load exceeding the 500 MW load level during summer
months.
June: 7 days
July: 11 days
August: 11 days
Harbor Beach Run Requirement due to scheduled transmission facility
outages
May
There are no scheduled outages that will require Harbor Beach to run.
June 2013
There is one outage scheduled in the month of June that will require Harbor
Beach to run for 4 days
 Arrowhead – Tuscola 120kV: 4 Day Duration
July 2013
There is one outage planned for the month of July that will require Harbor
Beach to run for 10 days:
 Arrowhead – Cosmo Tap – Bad Axe 120kV: 10 Day Duration
August 2013
There are no scheduled outages that will require Harbor Beach to run.
September 2013
There are 2 outages planned for the month of September that will require
Harbor Beach to run.
 Atlanta – Karn - Thetford line: 7 Day Duration
 Tuscola Breaker GW (Tuscola – Atlanta line): 21 Day Duration
October 2013
There are no scheduled outages that will require Harbor Beach to run.
November 2013
There is 1 outage planned for the month of November that will NOT require
Harbor Beach to run if Bauer-Rapson lines and Rapson Transformers
placed in service as currently scheduled:
 Bauer – Rapson #1 line: 7 Day Duration
It is currently anticipated that beyond November 1, 2013 Harbor Beach will
not be required as a must run unit for scheduled transmission outages. This
date may change and is dependent on construction progress; weather forecast;
unplanned generation, transmission, and distribution outages; and obtaining
the necessary outages cited above. ITC will review and update this posting
periodically as well as when information resulting in material changes become
available.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/17/2013
1-03798032
120 KV
Custer
Custer HD 120kV Breaker
5/23/2013 0700 EST
5/24/013 1530 EST
Planned
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-2, 11-3, and 11-4) should be available
and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
5/15/2013
1-03743127
120 KV
Brownstown
Berlin
Brownstown – Berlin 120kV line
5/21/2013 0700 EST
5/22/013 1530 EST
Planned
Comments:
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-2, 11-3, and 11-4) should be available
and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/15/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
5/9/2013
1-03755232
120 KV
Fermi
Fermi Bus 102 120kV
5/18/2013 0530 EST
5/19/013 1830 EST
Planned
Loss of the Custer – Monroe 120kV line will force the Whiting – Custer
120kV line to feed the entire load at Custer, Shoal, and Fermi. For this reason,
Whiting should run at with a minimum output of 120MW for the duration of
this outage.
1-03793830
120 KV
Fermi
Swan Creek
Fermi – Swan Creek120kV line
5/15/2013 0530 EST
5/16/2013 1830 EST
Planned
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-1, 11-2, 11-3, and 11-4) should be
available and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
5/9/2013
1-03793829
120 KV
Fermi
Radka
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Fermi - Radka 120kV line
5/13/2013 0530 EST
5/14/2013 1830 EST
Planned
This outage may require the use of the Fermi Peakers.
In order to provide the necessary voltage support at the Fermi PP 120 kV
station, all Fermi PP Peaking Units (11-1, 11-2, 11-3, and 11-4) should be
available and used as necessary both pre and post-contingency.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
4/29/2013
1-03705907
120 KV
Minden
Rapson
Minden - Rapson 120kV line
5/6/2013 0700 EST
5/7/2013 1530 EST
Planned
This outage may require the use of Harbor Beach if the Rapson –
Seaside 120kV line is lost.
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
4/29/2013
1-03729592
120 KV
Harbor Beach
Minden
Harbor Beach - Minden 120kV line
5/8/2013 0700 EST
5/9/2013 1930 EST
Planned
This outage may require the use of Harbor Beach if the Rapson –
Seaside 120kV line is lost.
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
4/23/2013
1-03595627
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
5/7/2013 0630 EST
5/17/2013 1930 EST
Planned
At this point in time the combined output of Harbor Beach and Sigel
Wind must not exceed 100MW at any time. This posting states the
guidelines for Harbor Beach if Sigel Wind is not producing any MW.
However this number may be adjusted as long as the combined output of both
units meets the minimum generation requirement.
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross)
for all Thumb load levels over 400 MW when the Belle River-GreenwoodPontiac line is outaged. It is recommended to reschedule the outage if
Harbor Beach Unit 1 is unavailable and the thumb load is expected to
exceed 400 MW.
The contingency loss of Arrowhead-Tuscola 120kV line may result in
extremely low voltages around the Bad Axe and Harbor Beach substations
during the outage of the Belle River-Greenwood-Pontiac 345kV line.
Therefore Harbor Beach Unit 1 must run pre-contingency, as indicated in the
table below, in order to prevent low post-contingent voltages.
Thumb Load
400MW - 425 MW
425 MW – 450 MW
Min HBHPP Output
(Gross)
45 MW
70 MW
There is no restriction on the maximum output.
A condition of operation of any condensing steam unit, including Greenwood,
is the unit must have two feeds from outside the plant capable of supporting
the plant internal electrical load. This is necessary so that, in the event of loss
of one of the feeds, there is an immediate availability of the second feed in
order to safely shutdown the unit.
Greenwood MTG 1 must not be available for operation, unless outside
plant power is available to System Service 61 transformer via both
Transformer 301 and the Greenwood-Kilgore line. These are the only two
sources individually capable of supporting operation and a proper shutdown of
Greenwood.
If Greenwood-Bennett is the only power source available, it is not capable of
starting any of the required large motors at Greenwood to start the plant. It is
not capable of supporting the plant auxiliary loads while MTG 1 is already
operating nor is it capable of supporting the safe shutdown of the plant. It can
be used to maintain lights, ventilation, etc. in the plant, when the plant is
already in a safe shutdown condition.
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers CTG
11-1, 11-2 and 12-1 can run. The total output (all three peakers) must be
below 75 MW. Above 75 MW, for the loss of Greenwood-Kilgore line, Benet
Transformer 102 exceeds its tripping limit.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
3/13/2013
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
3/12/2013
1-03574043
120 KV
River Rogue Power Plant
River Rogue Power Plant Bus 101 and 111
3/25/2013 0630 EST
4/26/2013 1730 EST
Planned
River Rogue Generator 1 will not be able to run for the duration of this
outage.
2-00314156
120 KV
Lee
Sandusky
Lee – Sandusky 120kV line
3/18/2013 0700 EST
3/22/2013 1830 EST
Planned
Harbor Beach Unit 1 is required to run with a minimum output of 45
MW (gross) for the entire duration of this outage. It is recommended to
reschedule the outage if Harbor Beach is unavailable or expected to
offline at any time during the outage. It is also recommended to
reschedule the outage if the Thumb Load is expected to exceed 450 MW
at any time during the outage.
Harbor Beach Generator 1 must run as mentioned in the table below for all
Thumb load levels:
Thumb Load
Up to 350 MW
350-375 MW
375-400 MW
400-430 MW
430-450 MW
Minimum HBHPP Output
45 MW
55 MW
65 MW
75 MW
85 MW
To prevent 40kV distribution circuit overloads the combined output from
Harbor Beach, Sigel, Michigan Wind One/Two and Harvest One/Two
must be restricted to 215 MW. Michigan Wind One & Two will be
restricted to 80 MW to prevent overload on Sandusky Transformer 101
for the loss of Wyatt – Lepek 120kV line.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
3/5/2013
2-00289856
120 KV
Rapson
Wyatt
Rapson – Wyatt #1 120kV line
3/12/2013 0700 EST
3/12/2013 1530 EST
Planned
This outage may require the use of Harbor Beach if the Rapson – Wyatt
#2 120kV line is lost.
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 60 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1/19/2013
1-03544416
120 KV
Seaside
Wyatt
Seaside – Wyatt 120kV line
2/25/2013 0530 EST
3/8/2013 1830 EST
Planned
This outage may require the use of Harbor Beach if the Harbor Beach –
Minden 120kV line is lost.
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 45 MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
1/14/2013
1-03477399
345 KV
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
2/24/2013 0600 EST
2/24/2013 1900 EST
Planned
At this point in time the combined output of Harbor Beach and Sigel
Wind must not exceed 100MW at any time. This posting states the
guidelines for Harbor Beach if Sigel Wind is not producing any MW.
However this number may be adjusted as long as the combined output of both
units meets the minimum generation requirement.
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross)
for all Thumb load levels under 300 MW when the Belle RiverGreenwood-Pontiac line is outaged. It is recommended to reschedule the
outage if Harbor Beach Unit 1 is unavailable and the thumb load is
expected to exceed 300 MW.
The contingency loss of Arrowhead-Tuscola 120kV line may result in
extremely low voltages around the Bad Axe and Harbor Beach substations
during the outage of the Belle River-Greenwood-Pontiac 345kV line.
Therefore Harbor Beach Unit 1 must run pre-contingency, as indicated in the
table below, in order to prevent low post-contingent voltages.
Thumb Load
Output
Below 300 MW
300 MW – 350 MW
350 MW – 375 MW
375 MW – 400 MW
400 MW - 450 MW
Minimum Gross HBHPP
45 MW
55 MW
70 MW
80 MW
90 MW
There is no restriction on the maximum output.
A condition of operation of any condensing steam unit, including Greenwood,
is the unit must have two feeds from outside the plant capable of supporting
the plant internal electrical load. This is necessary so that, in the event of loss
of one of the feeds, there is an immediate availability of the second feed in
order to safely shutdown the unit.
Greenwood MTG 1 must not be available for operation, unless outside
plant power is available to System Service 61 transformer via both
Transformer 301 and the Greenwood-Kilgore line. These are the only two
sources individually capable of supporting operation and a proper shutdown of
Greenwood.
If Greenwood-Bennett is the only power source available, it is not capable of
starting any of the required large motors at Greenwood to start the plant. It is
not capable of supporting the plant auxiliary loads while MTG 1 is already
operating nor is it capable of supporting the safe shutdown of the plant. It can
be used to maintain lights, ventilation, etc. in the plant, when the plant is
already in a safe shutdown condition.
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers CTG
11-1, 11-2 and 12-1 can run. The total output (all three peakers) must be
below 75 MW. Above 75 MW, for the loss of Greenwood-Kilgore line, Benet
Transformer 102 exceeds its tripping limit.
There is no restriction on the maximum output.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
2/12/2013
1-03530534
120 KV
Minden
Wyatt
Minden – Wyatt 120kV line
2/14/2013 0530 EST
2/22/2013 1530 EST
Planned
This outage will require the use of Harbor Beach if the Seaside – Wyatt
120kV line is lost.
The combined output of Harbor Beach and Sigel Wind Park will be
restricted to 50MW gross output for the duration of the outage. This
will prevent Tie 5611 from exceeding its emergency rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
2/4/2013
Posting Date:
MISO Ticket Number:
1/18/2013
1-03458795
138 KV
Atlanta
Karn - Thetford
Atlanta – Karn – Thetford 138kV line
2/6/2013 2000 EST
2/23/2013 1830 EST
Planned
With Harbor Beach unit 1 off and no wind generation, when the thumb load
exceeds 450MW, the loss of Lee - Sandusky 120kV line can cause very low
voltages in the thumb region. For this reason, Harbor Beach should run at
with a minimum output of 40MW when the thumb load is expected to
exceed 450MW. During the timeframe of the outage, the load of the thumb is
about 6% of the total ITC load.
1-03418965
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
120 KV
Seaside
Wyatt
Seaside – Wyatt 120kV line
1/29/2013 0630 EST
2/6/2013 1830 EST
Planned
This outage will require the use of Harbor Beach if the Harbor Beach –
Minden 120kV line is lost.
With Harbor Beach on, the combined output of Harbor Beach and Sigel
Wind Park will be restricted to 50MW gross output for the duration of
the outage. This will prevent Tie 5611 from exceeding its emergency
rating.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1/14/2013
1-03390582
345 KV
Belle River
Greenwood – Pontiac
Belle River – Greenwood - Pontiac
1/26/2013 0700 EST
1/29/2013 1900 EST
Planned
At this point in time the combined output of Harbor Beach and Sigel
Wind must not exceed 100MW at any time. This posting states the
guidelines for Harbor Beach if Sigel Wind is not producing any MW.
However this number may be adjusted as long as the combined output of both
units meets the minimum generation requirement.
Harbor Beach Unit 1 must run with a minimum output of 45 MW (gross)
for all Thumb load levels under 300 MW when the Belle RiverGreenwood-Pontiac line is outaged. It is recommended to reschedule the
outage if Harbor Beach Unit 1 is unavailable and the thumb load is
expected to exceed 300 MW.
The contingency loss of Arrowhead-Tuscola 120kV line may result in
extremely low voltages around the Bad Axe and Harbor Beach substations
during the outage of the Belle River-Greenwood-Pontiac 345kV line.
Therefore Harbor Beach Unit 1 must run pre-contingency, as indicated in the
table below, in order to prevent low post-contingent voltages.
Thumb Load
Output
Below 300 MW
300 MW – 350 MW
350 MW – 375 MW
375 MW – 400 MW
400 MW - 450 MW
Minimum Gross HBHPP
45 MW
55 MW
70 MW
80 MW
90 MW
There is no restriction on the maximum output.
A condition of operation of any condensing steam unit, including Greenwood,
is the unit must have two feeds from outside the plant capable of supporting
the plant internal electrical load. This is necessary so that, in the event of loss
of one of the feeds, there is an immediate availability of the second feed in
order to safely shutdown the unit.
Greenwood MTG 1 must not be available for operation, unless outside
plant power is available to System Service 61 transformer via both
Transformer 301 and the Greenwood-Kilgore line. These are the only two
sources individually capable of supporting operation and a proper shutdown of
Greenwood.
If Greenwood-Bennett is the only power source available, it is not capable of
starting any of the required large motors at Greenwood to start the plant. It is
not capable of supporting the plant auxiliary loads while MTG 1 is already
operating nor is it capable of supporting the safe shutdown of the plant. It can
be used to maintain lights, ventilation, etc. in the plant, when the plant is
already in a safe shutdown condition.
When Belle River-Greenwood-Pontiac line is open, Greenwood peakers CTG
11-1, 11-2 and 12-1 can run. The total output (all three peakers) must be
below 75 MW. Above 75 MW, for the loss of Greenwood-Kilgore line, Benet
Transformer 102 exceeds its tripping limit.
There is no restriction on the maximum output.
Posting Date:
MISO Ticket Number:
KV:
From Station:
To Station:
Equipment Name:
Planned Start Date/Time:
Planned End Date/Time:
Outage Type:
Comments:
1/14/2013
1-03375656
120 KV
Leppek
Wyatt
Leppek – Wyatt 120kV
1/23/2013 0700 EST
12/25/2012 1830 EST
Planned
At this point in time the combined output of Harbor Beach and Sigel
Wind must not exceed 100MW at any time. This posting states the
guidelines for Harbor Beach if Sigel Wind is not producing any MW.
However this number may be adjusted as long as the combined output of both
units meets the minimum generation requirement.
Harbor Beach Unit 1 is required to run with a minimum output of 45
MW (gross) for the entire duration of this outage. It is recommended to
reschedule the outage if Harbor Beach is unavailable or expected to
offline at anytime during the outage. It is also recommended to reschedule
the outage if the Thumb Load is expected to exceed 450 MW at anytime
during the outage.
Harbor Beach Generator 1 must run as mentioned in the table below for all
Thumb load levels:
Thumb Load
(Gross)
Up to 350 MW
350-375 MW
375-400 MW
400-430 MW
430-450 MW
Minimum HBHPP Output
45 MW
55 MW
65 MW
75 MW
85 MW
At Thumb loads above 450 MW, loss of Arrowhead-Tuscola can result in
extremely low voltages and severe overloads on Tuscola XF 101 and several
40kV Tie lines. If the Thumb Load unexpectedly exceeds 450 MW during the
outage, it is recommended to return Lee-Sandusky line back to service as soon
as possible. The Thumb peakers can be turned ON for voltage support if
necessary.
Michigan Wind One & Two will be restricted to 85 MW to prevent
overload on Sandusky TRF 101 for the loss of Lee - Sandusky 120kV line.
Also, to prevent high voltages at Sandusky, DTE may fix the LTC on
Sandusky XF 101 to the neutral position prior to the start of the outage.