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All notices should be confirmed with the appropriate operating personnel prior to taking any action.
System Status
Notices displayed in reverse chronological order

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NOTICE: 201001851 POSTED: 2010-01-20 23:59:00
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CAISO Grid Generation Restricted Maintenance Operations CANCELLATION [201001851]

Effective 01/20/2010 23:59 the California Independent System Operator
has terminated CAISO Grid Generation Restricted Maintenance Operations.
CAISO Grid Generation Restricted Maintenance Operations has been in effect
since 01/19/2010 19:53.



This message is from Market Operations at the California ISO.

This notice supersedes notice 201001850 CAISO Grid Generation Restricted Maintenance Operations Notice issued 01/19/2010 19:59

Notice issued at: 01/20/2010 23:59

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid system.
While this CAISO notice reflects the most current information available to the CAISO,
because transmission grid system conditions are subject to sudden and rapid change
without warning, the accuracy of this notice cannot be assured. This CAISO notice
is provided solely for informational purposes. Reliance by any party on the contents
of this CAISO notice, regardless of any errors, omissions, inaccuracies, and/or
subsequent changed conditions shall not be made the basis for any claim, demand
or cause for action against the CAISO. Any recipient's decisions or actions that
may be based in any way whatsoever on the contents of this CAISO notice shall be
the sole responsibility of the recipient.
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NOTICE: 201001850 POSTED: 2010-01-19 19:59:00
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GENERATION Restricted Maintenance Operations NOTIFICATION [201001850]

The California ISO is declaring CAISO Grid GENERATION Restricted Maintenance Operations
for the period from 01/19/2010 19:53 through 01/20/2010 23:59.

The CAISO is extending the current Generation Restricted |Maintenance condition through 23:59 on 01/20/2010 for the |following reasons: Current storm conditions state-wide and |the storm-related loss of generating capacity on Tuesday, |01/19/2010.

Restrictions to maintenance affecting Generation as detailed in
ISO Operating Procedure E-509 will be in effect. Additionally,
Market Participants are cautioned to avoid actions which may
unnecessarily jeopardize generator availability.

This notice does not restrict scheduled outages which do not
affect generating resource availability.

This message is from Market Operations at the California ISO.

This notice supersedes notice 201001845 CAISO Grid Generation Restricted Maintenance Operations Notice issued 01/19/2010 16:55

Notice issued at: 01/19/2010 19:59

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid system.
While this CAISO notice reflects the most current information available to the CAISO,
because transmission grid system conditions are subject to sudden and rapid change
without warning, the accuracy of this notice cannot be assured. This CAISO notice
is provided solely for informational purposes. Reliance by any party on the contents
of this CAISO notice, regardless of any errors, omissions, inaccuracies, and/or
subsequent changed conditions shall not be made the basis for any claim, demand
or cause for action against the CAISO. Any recipient's decisions or actions that
may be based in any way whatsoever on the contents of this CAISO notice shall be
the sole responsibility of the recipient.
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NOTICE: 201001849 POSTED: 2010-01-19 18:22:00
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CAISO Grid WARNING CANCELLATION NOTICE [201001849]

Effective 01/19/2010 at 18:10 the California ISO terminates the
CAISO Grid WARNING in effect since 01/19/2010 16:40.

Monitor system conditions on the California ISO Website at www.caiso.com and
check with local electric utilities for additional information. This message
was sent by Market Operations at the California ISO.

This notice supersedes notice 201001848 CAISO Grid Warning Notice issued 01/19/2010 17:29

Notice issued at: 01/19/2010 18:22

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid
system. While this CAISO notice reflects the most current information available
to the CAISO, because transmission grid system conditions are subject to sudden
and rapid change without warning, the accuracy of this notice cannot be assured.
This CAISO notice is provided solely for informational purposes. Reliance by
any party on the contents of this CAISO notice, regardless of any errors,
omissions, inaccuracies, and/or subsequent changed conditions shall not be made
the basis for any claim, demand or cause for action against the CAISO. Any
recipient's decisions or actions that may be based in any way whatsoever on the
contents of this CAISO notice shall be the sole responsibility of the recipient.
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NOTICE: 201001848 POSTED: 2010-01-19 17:29:00
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CAISO Grid WARNING NOTICE [201001848]

The California ISO hereby issues a CAISO Grid WARNING Notice,
effective 01/19/2010 16:40 through 01/19/2010 23:59.

Reason:
Loss of Internal Resources.

Maximum conservation efforts are advised but without disruption to employment,
commerce, or industrial production. Energy market participants are encouraged
to offer additional Supplemental Energy and Ancillary Service bids.

Monitor system conditions on the California ISO Website at www.caiso.com and
check with local electric utilities for additional information. This message
was sent by Market Operations at the California ISO.



Notice issued at: 01/19/2010 17:29

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid
system. While this CAISO notice reflects the most current information available
to the CAISO, because transmission grid system conditions are subject to sudden
and rapid change without warning, the accuracy of this notice cannot be assured.
This CAISO notice is provided solely for informational purposes. Reliance by
any party on the contents of this CAISO notice, regardless of any errors,
omissions, inaccuracies, and/or subsequent changed conditions shall not be made
the basis for any claim, demand or cause for action against the CAISO. Any
recipient's decisions or actions that may be based in any way whatsoever on the
contents of this CAISO notice shall be the sole responsibility of the recipient.
-------------------------------------------------------------------------------------



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NOTICE: 201001847 POSTED: 2010-01-19 17:20:00
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CAISO Grid WARNING CANCELLATION NOTICE [201001847]

Effective 01/19/2010 at 17:19 the California ISO terminates the
CAISO Grid WARNING in effect since 01/19/2010 16:40.

Monitor system conditions on the California ISO Website at www.caiso.com and
check with local electric utilities for additional information. This message
was sent by Market Operations at the California ISO.

This notice supersedes notice 201001846 CAISO Grid Warning Notice issued 01/19/2010 17:08

Notice issued at: 01/19/2010 17:20

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid
system. While this CAISO notice reflects the most current information available
to the CAISO, because transmission grid system conditions are subject to sudden
and rapid change without warning, the accuracy of this notice cannot be assured.
This CAISO notice is provided solely for informational purposes. Reliance by
any party on the contents of this CAISO notice, regardless of any errors,
omissions, inaccuracies, and/or subsequent changed conditions shall not be made
the basis for any claim, demand or cause for action against the CAISO. Any
recipient's decisions or actions that may be based in any way whatsoever on the
contents of this CAISO notice shall be the sole responsibility of the recipient.
-------------------------------------------------------------------------------------



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NOTICE: 201001846 POSTED: 2010-01-19 17:08:00
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CAISO Grid WARNING NOTICE [201001846]

The California ISO hereby issues a CAISO Grid WARNING Notice,
effective 01/19/2010 16:40 through 01/19/2010 23:59.

Reason:
Loss of internal resources.

Maximum conservation efforts are advised but without disruption to employment,
commerce, or industrial production. Energy market participants are encouraged
to offer additional Supplemental Energy and Ancillary Service bids.

Monitor system conditions on the California ISO Website at www.caiso.com and
check with local electric utilities for additional information. This message
was sent by Market Operations at the California ISO.



Notice issued at: 01/19/2010 17:08

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid
system. While this CAISO notice reflects the most current information available
to the CAISO, because transmission grid system conditions are subject to sudden
and rapid change without warning, the accuracy of this notice cannot be assured.
This CAISO notice is provided solely for informational purposes. Reliance by
any party on the contents of this CAISO notice, regardless of any errors,
omissions, inaccuracies, and/or subsequent changed conditions shall not be made
the basis for any claim, demand or cause for action against the CAISO. Any
recipient's decisions or actions that may be based in any way whatsoever on the
contents of this CAISO notice shall be the sole responsibility of the recipient.
-------------------------------------------------------------------------------------



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NOTICE: 201001845 POSTED: 2010-01-19 16:55:00
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GENERATION Restricted Maintenance Operations NOTIFICATION [201001845]

The California ISO is declaring CAISO Grid GENERATION Restricted Maintenance Operations
for the period from 01/19/2010 16:40 through 01/19/2010 20:00.

The ISO anticipates generation resources may be inadequate |for the period covered by this notice.

Restrictions to maintenance affecting Generation as detailed in
ISO Operating Procedure E-509 will be in effect. Additionally,
Market Participants are cautioned to avoid actions which may
unnecessarily jeopardize generator availability.

This notice does not restrict scheduled outages which do not
affect generating resource availability.

This message is from Market Operations at the California ISO.



Notice issued at: 01/19/2010 16:55

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid system.
While this CAISO notice reflects the most current information available to the CAISO,
because transmission grid system conditions are subject to sudden and rapid change
without warning, the accuracy of this notice cannot be assured. This CAISO notice
is provided solely for informational purposes. Reliance by any party on the contents
of this CAISO notice, regardless of any errors, omissions, inaccuracies, and/or
subsequent changed conditions shall not be made the basis for any claim, demand
or cause for action against the CAISO. Any recipient's decisions or actions that
may be based in any way whatsoever on the contents of this CAISO notice shall be
the sole responsibility of the recipient.
-------------------------------------------------------------------------------------



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NOTICE: 201001844 POSTED: 2010-01-19 16:46:00
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CAISO Grid Generation Restricted Maintenance Operations CANCELLATION [201001844]

Effective 01/19/2010 16:46 the California Independent System Operator
has terminated CAISO Grid Generation Restricted Maintenance Operations.
CAISO Grid Generation Restricted Maintenance Operations has been in effect
since 01/19/2010 16:40.



This message is from Market Operations at the California ISO.

This notice supersedes notice 201001843 CAISO Grid Generation Restricted Maintenance Operations Notice issued 01/19/2010 16:46

Notice issued at: 01/19/2010 16:46

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid system.
While this CAISO notice reflects the most current information available to the CAISO,
because transmission grid system conditions are subject to sudden and rapid change
without warning, the accuracy of this notice cannot be assured. This CAISO notice
is provided solely for informational purposes. Reliance by any party on the contents
of this CAISO notice, regardless of any errors, omissions, inaccuracies, and/or
subsequent changed conditions shall not be made the basis for any claim, demand
or cause for action against the CAISO. Any recipient's decisions or actions that
may be based in any way whatsoever on the contents of this CAISO notice shall be
the sole responsibility of the recipient.
-------------------------------------------------------------------------------------



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NOTICE: 201001843 POSTED: 2010-01-19 16:46:00
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GENERATION Restricted Maintenance Operations NOTIFICATION [201001843]

The California ISO is declaring CAISO Grid GENERATION Restricted Maintenance Operations
for the period from 01/19/2010 16:40 through .

The ISO anticipates generation resources may be inadequate |for the period covered by this notice.

Restrictions to maintenance affecting Generation as detailed in
ISO Operating Procedure E-509 will be in effect. Additionally,
Market Participants are cautioned to avoid actions which may
unnecessarily jeopardize generator availability.

This notice does not restrict scheduled outages which do not
affect generating resource availability.

This message is from Market Operations at the California ISO.



Notice issued at: 01/19/2010 16:46

---------------------------------- DISCLAIMER --------------------------------------
This CAISO notice is based on the current conditions of the transmission grid system.
While this CAISO notice reflects the most current information available to the CAISO,
because transmission grid system conditions are subject to sudden and rapid change
without warning, the accuracy of this notice cannot be assured. This CAISO notice
is provided solely for informational purposes. Reliance by any party on the contents
of this CAISO notice, regardless of any errors, omissions, inaccuracies, and/or
subsequent changed conditions shall not be made the basis for any claim, demand
or cause for action against the CAISO. Any recipient's decisions or actions that
may be based in any way whatsoever on the contents of this CAISO notice shall be
the sole responsibility of the recipient.
-------------------------------------------------------------------------------------


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END OF NOTICE LOG
 
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     History - Compilation of the California ISO Notices of firm load shedding detail by date, time and utlity.
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