Idd part 1 Interfaces with bsc parties and their Agents

BMRA Publishing Interface

Continuous (as made available from the SO)

Various

The BMRA Service shall publish System data continuously, as it is received from the SO.

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Sum of PN Generation (MW)

Indicated Demand

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Sum of PN Demand (MW)

National Demand Forecast³

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Demand (MW)

Transmission System Demand Forecast⁴

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Demand (MW)

Initial National Demand Out-Turn

Publishing Period Commencing Time

Start Time of ½ Hour Period

Demand (MW)

Initial Transmission System Demand Out-Turn

Publishing Period Commencing Time

Start Time of ½ Hour Period

Demand (MW)

National Demand Forecast Day, 2-14 Day

Publishing Period Commencing Time

Day of Forecast

Demand (MW)

Transmission System Demand Forecast Day, 2-14 Day

Publishing Period Commencing Time

Day of Forecast

Demand (MW)

National Demand Forecast Week, 2-52 Week

Publishing Period Commencing Time

Calendar Week Number

Demand (MW)

Transmission System Demand Forecast Week, 2-52 Week

Publishing Period Commencing Time

Calendar Week Number

Demand (MW)

National Surplus Forecast, 2-14 Day

Publishing Period Commencing Time

Day of Forecast

Surplus (MW)

National Surplus Forecast, 2-52 Week

Publishing Period Commencing Time

Calendar Week Number

Surplus (MW)

Indicated Margin

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Margin (MW)

Indicated Imbalance

Publishing Period Commencing Time

Start Time of ½ Hour Period

National/Boundary Identifier

Imbalance Value (MW)

National Output Usable, 2-14 Day

Publication Time

System Zone

Settlement Date

Output Usable (MW)

Zonal Output Usable, 2-14 Day

Publication Time

System Zone

Settlement Date

Output Usable (MW)

National Output Usable by Fuel Type, 2-14 Day

Fuel Type

Publication Time

System Zone

Settlement Date

Output Usable (MW)

National Output Usable by Fuel Type and BM Unit, 2-14 Day

BM Unit

Publication Time

System Zone

Settlement Date

Output Usable (MW)

National Output Usable, 2-49 Day

Publication Time

System Zone

Settlement Date

Output Usable (MW)

Zonal Output Usable, 2-49 Day

Publication Time

System Zone

Settlement Date

Output Usable (MW)

National Output Usable, 2-52 Week

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 2-52 Week

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable by Fuel Type, 2-52 Week

Fuel Type

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable by Fuel Type and BM Unit, 2-52 Week

BM Unit

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable, 1 year ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable, 2 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable, 3 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable, 4 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

National Output Usable, 5 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 1 year ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 2 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 3 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 4 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Zonal Output Usable, 5 years ahead

Publication Time

System Zone

Calendar Week Number

Calendar Year

Output Usable (MW)

Generating Plant Demand Margin, 2-14 Days

Publication Time

Settlement Date

Generating Plant Demand Margin (MW)

Generating Plant Demand Margin, 2-52 Weeks

Publication Time

Calendar Week Number

Generating Plant Demand Margin (MW)

System Zone Map

NGC-BSC BM Unit Mapping

System Warnings

SO-SO Prices

Settlement Date

Settlement Period

Net Energy Buy Price Cost Adjustment (EBCA) (£)

Net Energy Buy Price Volume Adjustment (EBVA) (MWh)

Net System Buy Price Volume Adjustment (SBVA) (MWh)

Buy Price Price Adjustment (BPA) (£/MWh)

Net Energy Sell Price Cost Adjustment (ESCA) (£)

Net Energy Sell Price Volume Adjustment (ESVA) (MWh)

Net System Sell Price Volume Adjustment (SSVA) (MWh)

Sell Price Price Adjustment (SPA) (£/MWh)

Balancing Services Adjustment Action Data (for Settlement Dates after, and including the P217 effective date):

Settlement Date

Settlement Period

Balancing Services Adjustment Action ID (unique for Settlement Period)

Balancing Services Adjustment Action Cost (£)

Balancing Services Adjustment Action Volume (MWh)

Balancing Services Adjustment Action SO-Flag (T/F)

Market Index Data:

Market Index Data Provider Identifier

Settlement Date

Settlement Period (1-50)

Market Index Price

Market Index Volume

Missing Market Index Data Messages

Temperature Data

Publishing Period Commencing Time

Settlement Date

Outturn Temperature (degrees Celsius)

Normal Reference Temperature (degrees Celsius)

High Reference Temperature (degrees Celsius)

Low Reference Temperature (degrees Celsius)

Wind Generation Forecast

Publishing Period Commencing Time

Start Time of ½ Hour Period

Generation Forecast (MW)

Total Registered Capacity (MW)

Instantaneous Generation By Fuel Type

Publishing Period Commencing Time

Start Time of ½ Hour Period

Spot Time

Fuel Type – ID representing one of:

CCGT

OCGT

Nuclear

Pumped Storage Plant

Non Pumped Storage Hydro Plant

External Interconnector Flows from France to England

External Interconnector Flows from Northern Ireland to Scotland

External Interconnector Flows from the Netherlands to England

Other

Generation (MW)

Publishing Period Commencing Time

Start Time of ½ Hour Period

Fuel Type – ID representing one of:

CCGT

Oil Plant

Coal

Power Park Module

Pumped Storage Plant

Non Pumped Storage Hydro Plant

External Interconnector Flows from France to England

External Interconnector Flows from Northern Ireland to Scotland

External Interconnector Flows from the Netherlands to England

Other

Daily Energy Volume Data

Publishing Period Commencing Time

Settlement Date

Outturn Volume (MWh)

Normal Volume (MWh)

High Volume (MWh)

Low Volume (MWh)

Realtime Transmission System Frequency Data

Publishing Period Commencing Time

Spot Time

Frequency (Hz)

Non-BM STOR Out-Turn

Publishing Period Commencing Time

Start Time of ½ Hour Period

Non-BM STOR Volume (MWh)

The System Warnings functionality will be utilised, within existing constraints, to report the issuing of all Emergency Instructions, and to notify whether or not each instruction should be treated as an Excluded Emergency Acceptance.

Balancing Services Adjustment Data for Settlement Dates after, and including the P217 effective date will always have a value of zero for the following data items:

Net Energy Buy Price Volume Adjustment (EBVA)

Net System Buy Price Volume Adjustment (SBVA)

Net Energy Sell Price Cost Adjustment (ESCA)

Net Energy Sell Price Volume Adjustment (ESVA)

Net System Sell Price Volume Adjustment (SSVA)

Within the Balancing Services Adjustment Action Data the SO-Flag will be set to ‘T’ where the associated Action has been flagged by the SO as potentially impacted by transmission constraints.