Daily Balancing Volume 2023-2024
On a settlement period basis, the total balancing cost (per MWh) is given, alongside the total volume of services provided and an average cost for the settlement period.
Data Explorer
Data Explorer
Table Information
SETT_DATE
Title | Settlement Date |
---|---|
Type | date |
Description | The Payment Date in relation to an Initial Settlement Run. |
Comment | |
Example | 13/04/2023 |
Unit |
SETT_PERIOD
Title | Settlement Period |
---|---|
Type | integer |
Description | A period of 30 minutes beginning on the hour or the half-hour |
Comment | |
Example | 15 |
Unit |
Energy Imbalance (MWh)
Title | Energy Imbalance (MWh) |
---|---|
Type | number |
Description | Energy imbalance is the difference between the amount of energy generated in real time, the amount of energy consumed during that same time, and the amount of energy sold ahead of the generation time for that specific time period. The monthly energy imbalance cost can be negative or positive depending on whether the market was predominantly long or short. |
Comment | |
Example | -168.125 |
Unit | MWh |
Frequency Control Offers (MWh)
Title | Frequency Control (MWh) |
---|---|
Type | number |
Description | Frequency response offers are predominantly required overnight when generation is running closer to its SEL, and offers are required to lift a unit’s position to enable them to provide high frequency response (reducing output) |
Comment | |
Example | 6.5 |
Unit | MWh |
Frequency Control Bids (MWh)
Title | Frequency Control Bids (MWh) |
---|---|
Type | number |
Description | The required Frequency Response Bid volume is dependent on the relative market synchronised position of the generation based on its upper and lower output limits. |
Comment | |
Example | -12.5 |
Unit | MWh |
Positive Reserve (MWh)
Title | Positive Reserve (MWh) |
---|---|
Type | number |
Description | The Operating Reserve volume uses the half hourly reserve requirement and market length less market synchronised headroom to define the volume of reserve required per half hour. When there is enough market synchronised headroom or the market is sufficiently long, there will be no reserve requirement and therefore there should be no procured reserve volume. |
Comment | |
Example | 112.5 |
Unit | MWh |
Constraint Offers (MWh)
Title | Constraint Offers (MWh) |
---|---|
Type | number |
Description | Submitted offers on a unit to increase its output. |
Comment | |
Example | 65.9 |
Unit | MWh |
Constraint Bids (MWh)
Title | Constraint Bids (MWh) |
---|---|
Type | number |
Description | Submitted bids on a unit to reduce its output. |
Comment | |
Example | -13.9 |
Unit | MWh |
Negative Reserve (MWh)
Title | Negative Reserve (MWh) |
---|---|
Type | number |
Description | A Negative Reserve service can provide the flexibility to reduce generation or increase demand to ensure supply and demand are balanced. The service is held in reserve to cover unforeseen fluctuations in demand, or generation from demand side PV and wind. |
Comment | |
Example | -7.17 |
Unit | MWh |
Other (MWh)
Title | Other (MWh) |
---|---|
Type | number |
Description | BM actions, which are not easily accounted for in the previously reported categories. |
Comment | |
Example | 24.2 |
Unit | MWh |
For any queries or feedback please contact [email protected]