Package: DISPATCH

Name

DISPATCH

Comment

Results from a published Dispatch Run


List of tables

Name

Comment

CONSTRAINTRELAXATION_OCD

CONSTRAINTRELAXATION_OCD contains details of interconnector constraints and unit ancillary service constraints relaxed in the over-constrained dispatch (OCD) re-run for this interval (if there was one).
Note: INTERVENTION is not included in CONSTRAINTRELAXATION_OCD, since the relaxation of the same constraint is the same amount in both intervened and non-intervened cases.

DISPATCH_CONSTRAINT_FCAS_OCD

FCAS constraint solution from OCD re-run.

DISPATCH_FCAS_REQ

DISPATCH_FCAS_REQ shows Dispatch Constraint tracking for Regional FCAS recovery.

DISPATCH_INTERCONNECTION

Inter-regional flow information common to or aggregated for regulated (i.e. not MNSP) Interconnectors spanning the From-Region and To-Region - NB only the physical run is calculated'

DISPATCH_LOCAL_PRICE

Sets out local pricing offsets associated with each DUID connection point for each dispatch period. Note that from 2014 Mid year release only records with non-zero Local_Price_Adjustment values are issued

DISPATCH_MNSPBIDTRK

DISPATCH_MNSPBIDTRK shows the MNSP bid tracking, including the bid version used in each dispatch run for each MNSP Interconnector Link. DISPATCH_MNSPBIDTRK is the audit trail of the bids actually used for each dispatch run.

DISPATCH_MR_SCHEDULE_TRK

DISPATCH_MR_SCHEDULE_TRK records the Mandatory Restrictions Acceptance Schedule applied to this dispatch interval for this region.
DISPATCH_MR_SCHEDULE_TRK is populated by the Dispatch process and records the MR Offer Stack applied in each dispatch interval. DISPATCH_MR_SCHEDULE_TRK is used by Settlements to calculate payments according to the correct MR offer stack.

DISPATCH_PRICE_REVISION

An audit trail of price changes on the DISPATCHPRICE table (i.e. for 5 minute dispatch prices for energy and FCAS).

DISPATCH_UNIT_CONFORMANCE

DISPATCH_UNIT_CONFORMANCE details the conformance of a scheduled units operation with respect to a cleared target on dispatch interval basis.
Data is confidential

DISPATCH_UNIT_SCADA

Dispatchable unit MW from SCADA at the start of the dispatch interval. The table includes all scheduled and semi-scheduled (and non-scheduled units where SCADA is available)

DISPATCHBLOCKEDCONSTRAINT

DISPATCH Blocked Constraints lists any constraints that were blocked in a dispatch run. If no constraints are blocked, there will be no rows for that dispatch run.

DISPATCHCASESOLUTION

DISPATCHCASESOLUTION shows information relating to the complete dispatch run. The fields in DISPATCHCASESOLUTION provide an overview of the dispatch run results allowing immediate identification of conditions such as energy or FCAS deficiencies.

DISPATCHCONSTRAINT

DISPATCHCONSTRAINT sets out details of all binding and interregion constraints in each dispatch run. Note: invoked constraints can be established from GENCONSETINVOKE. Binding constraints show as marginal value >$0. Interconnector constraints are listed so RHS (SCADA calculated limits) can be reported.

DISPATCHINTERCONNECTORRES

DISPATCHINTERCONNECTORRES sets out MW flow and losses on each interconnector for each dispatch period, including fields for the Frequency Controlled Ancillary Services export and import limits and extra reporting of the generic constraints set the energy import and export limits.

DISPATCHLOAD

DISPATCHLOAD set out the current SCADA MW and target MW for each dispatchable unit, including relevant Frequency Control Ancillary Services (FCAS) enabling targets for each five minutes and additional fields to handle the new Ancillary Services functionality. Fast Start Plant status is indicated by dispatch mode.

DISPATCHOFFERTRK

DISPATCHOFFERTRK is the energy and ancillary service bid tracking table for the Dispatch process. The table identifies which bids from BIDDAYOFFER and BIDPEROFFER were applied for a given unit and bid type for each dispatch interval.

DISPATCHPRICE

DISPATCHPRICE records 5 minute dispatch prices for energy and FCAS, including whether an intervention has occurred, or price override (e.g. for Administered Price Cap). DISPATCHPRICE updates when price adjustments occur, in which case the new price is written to the RRP field, and the old price to the ROP field as an audit trail.

DISPATCHREGIONSUM

DISPATCHREGIONSUM sets out the 5-minute solution for each dispatch run for each region, including the Frequency Control Ancillary Services (FCAS) services provided. Additional fields are for the Raise Regulation and Lower Regulation Ancillary Services plus improvements to demand calculations.

INTERMITTENT_FORECAST_TRK

Uniquely tracks which Intermittent Generation forecast was used for the DUID in which Dispatch run

NEGATIVE_RESIDUE

Shows the inputs provided to the Negative Residue Constraints in the Dispatch horizon


Diagram: Entities: Dispatch

Table: DISPATCH_UNIT_SCADA Table: DISPATCHLOAD Table: DISPATCH_LOCAL_PRICE Table: DISPATCHOFFERTRK Table: DISPATCHPRICE Table: DISPATCH_MR_SCHEDULE_TRK Table: INTERMITTENT_FORECAST_TRK Table: DISPATCH_UNIT_CONFORMANCE Table: NEGATIVE_RESIDUE Table: DISPATCH_MNSPBIDTRK Table: DISPATCHREGIONSUM Table: DISPATCHBLOCKEDCONSTRAINT Table: DISPATCHCONSTRAINT Table: DISPATCH_FCAS_REQ Table: CONSTRAINTRELAXATION_OCD Table: DISPATCH_INTERCONNECTION Table: DISPATCHINTERCONNECTORRES Table: DISPATCH_PRICE_REVISION Table: DISPATCHCASESOLUTION Table: DISPATCH_CONSTRAINT_FCAS_OCD
Entities: Dispatch