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Customer Advice Notices 2010

2010 CANs issued

The System Operator issues Customer Advice Notices to inform customers of impending changes to grid configuration, security constraints, NZ power system operation, grid equipment outages and operational security issues. These notices are faxed to dispatch customers and posted on the electricity market e-mail system (COMIT).

A selection of recent Customer Advice Notices are listed below, for reference.
These relate to:

Changes to permanent security constraints
Information on reserves dispatch
Short term security forecasts

2010 CANs issued

Document	Issue Date	Description
Revision of ROX_T10 permanent constraint [167kB]	14/07/2010	Change to ROX_T10 permanent constraint
Revision of Winter Permanent Constraints [168kB]	07/07/2010	The effect of this constraint is to manage flows through Arapuni-Hamilton 1 and 2 for a contingency of Arapuni-Hamilton 2 or 1 during high ARI generation. Arapuni Runback Scheme enabled.
Winter Initiatives [169kB]	23/06/2010	Winter Initiatives - Changes to Variable Reserves
Revision of HWA ABSS Disabled permanent constraints [173kB]	11/06/2010	Updated HWA ABSS Disabled Permanent constraints following rerating of HWA-SFD-1
Revision to SRC calculation [166kB]	05/05/2010	Change to Standby Residual Check (SRC) calculation
Revision of Shoulder Permanent Constraints [170kB]	22/03/2010	Shoulder season permanent constraint
Revision of winter summer permanent constraints [173kB]	03/02/2010	Shoulder season permanent constraints
Revision of winter summer permanent constraints [170kB]	27/01/2010	Bunnythorpe-Tokaanu constraint
Revision of winter summer permanent constraints [164kB]	14/01/2010	Hamilton-Karapiro constraint
Revision of permanent constraints [176kB]	08/01/2010	Arapuni Runback scheme constraints