Table: BIDPEROFFER

BIDPEROFFER

Name

BIDPEROFFER

Comment

BIDPEROFFER shows period-based Energy and Ancillary Service bid data. BIDPEROFFER is a child table of BIDDAYOFFER.


Description

The new ancillary service arrangements require availability and prices for each Frequency Control Ancillary Service to be bid on a similar basis to energy. Three new tables facilitate ancillary service bidding. The new tables (BIDOFFERFILETRK, BIDDAYOFFER and BIDPEROFFER) are similar in structure to energy bidding tables (OFFERFILETRK, DAYOFFER and PEROFFER). The significant differences with the new tables are:

· The OFFERDATE field reflects the time the bid was loaded and this field alone provides the key for versioning of bids. The VERSIONNO field is retained for participant use as information only.

· The new tables support bids for multiple services. The BIDTYPE field defines the service to which the bid applies.

· There are no default bids. In the absence of a bid for a specific settlement date, the latest bid submitted for a previous settlement date applies.

BIDPEROFFER data is confidential to the submitting participant until made public after 4am the next day.

Source

BIDPEROFFER updates as energy and ancillary service bids are processed. BIDPEROFFER includes all accepted energy and ancillary service bids.

Volume

Approximately 72,000,000 records per year


Notes

Name

Comment

Value

Visibility

Data in this table is:

Private; Public Next-Day


Primary Key Columns

Name

BIDTYPE

DUID

OFFERDATE

PERIODID

SETTLEMENTDATE


Index Columns

Name

LASTCHANGED


Content

Name

Data Type

Mandatory

Comment

DUID

VARCHAR2(10)

X

Dispatchable Unit identifier

BIDTYPE

VARCHAR2(10)

X

Bid Type Identifier

SETTLEMENTDATE

DATE

X

Market date starting at 04:05

OFFERDATE

DATE

X

Offer date

PERIODID

NUMBER(22,0)

X

Period ID

VERSIONNO

NUMBER(22,0)

 

Version number of offer

MAXAVAIL

NUMBER(12,6)

 

Maximum availability for this BidType in this period

FIXEDLOAD

NUMBER(12,6)

 

Fixed unit output MW (Energy Bids Only) A value of zero means no fixed load so the unit is dispatched according to bid and market (rather than zero fixed load)

ROCUP

NUMBER(6,0)

 

MW/min for raise (Energy Bids Only)

ROCDOWN

NUMBER(6,0)

 

MW/Min for lower (Energy Bids Only)

ENABLEMENTMIN

NUMBER(6,0)

 

Minimum Energy Output (MW) at which this ancillary service becomes available (AS Only)

ENABLEMENTMAX

NUMBER(6,0)

 

Maximum Energy Output (MW) at which this ancillary service can be supplied (AS Only)

LOWBREAKPOINT

NUMBER(6,0)

 

Minimum Energy Output (MW) at which the unit can provide the full availability (MAXAVAIL) for this ancillary service (AS Only)

HIGHBREAKPOINT

NUMBER(6,0)

 

Maximum Energy Output (MW) at which the unit can provide the full availability (MAXAVAIL) for this ancillary service (AS Only)

BANDAVAIL1

NUMBER(22,0)

 

Availability at price band 1

BANDAVAIL2

NUMBER(22,0)

 

Availability at price band 2

BANDAVAIL3

NUMBER(22,0)

 

Availability at price band 3

BANDAVAIL4

NUMBER(22,0)

 

Availability at price band 4

BANDAVAIL5

NUMBER(22,0)

 

Availability at price band 5

BANDAVAIL6

NUMBER(22,0)

 

Availability at price band 6

BANDAVAIL7

NUMBER(22,0)

 

Availability at price band 7

BANDAVAIL8

NUMBER(22,0)

 

Availability at price band 8

BANDAVAIL9

NUMBER(22,0)

 

Availability at price band 9

BANDAVAIL10

NUMBER(22,0)

 

Availability at price band 10

LASTCHANGED

DATE

 

Last date and time record changed

PASAAVAILABILITY

NUMBER(12,0)

 

Allows for future use for energy bids, being the physical plant capability including any capability potentially available within 24 hours

MR_CAPACITY

NUMBER(6,0)

 

Mandatory Restriction Offer amount