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Daily Balancing Costs 2018 - 2020

Table Information

Month

Title Month
Type date
Description The month Balancing Services Use of System (BSUoS) forecast and the outturn for.
Comment
Example 30/04/2019
Unit

Financial Week

Title Financial Week
Type integer
Description The week Balancing Services Use of System (BSUoS) forecast and the outturn for.
Comment
Example 1
Unit Number

Day

Title Date
Type date
Description The date Balancing Services Use of System (BSUoS) forecast and the outturn for. 
Comment
Example 04/01/2019
Unit

Total Balancing Cost

Title Total Balancing Cost
Type number
Description The total balancing cost per day to balance the system. 
Comment
Example 3.447
Unit £m

F = forecast

Title Forecast
Type string
Description Wherever  “F” signifies the forecast from that date. 
Comment
Example F
Unit Text

BM + Trading + SOSO

Title Balancing Mechanism (BM) system, Trading and System operator to system operator (SO to SO)
Type number
Description Cost for The Balancing Mechanism (BM) system, Trading and System operator to system operator (SO to SO).
Comment
Example 0.621
Unit £m

Non Delivery

Title Non Delivery
Type number
Description The description will be made available soon.
Comment
Example -0.011
Unit £m

Total Balancing Mechanism Costs

Title Total Balancing Mechanism Costs
Type number
Description The total cost of balancing actions taken within the balancing mechanism.  
Comment
Example 0.461
Unit £m

Energy Balancing

Title Energy Balancing
Type number
Description Cost of actions taken to balance supply and demand with in the balancing mechanism.  
Comment
Example -0.06
Unit £m

Total System Balancing

Title Total System Balancing
Type number
Description The total cost of balancing actions taken within the balancing mechanism.
Comment
Example 0.521
Unit £m

Response

Title Response
Type number
Description Response is a service we use to keep the system frequency close to 50Hz. Fast acting generation and demand services are held in readiness to manage any fluctuation in the system frequency, which could be caused by a sudden loss of generation or demand. There are three types of frequency response known as “primary”, “secondary” and “high”. The difference between primary and secondary is the speed at which they act to recover the system frequency. Both primary and secondary react to low frequency conditions, and high response is done in the BM.
Comment
Example 0.049
Unit £m

Negative Reserve

Title Negative Reserve
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 0.001
Unit £m

Fast Reserve

Title Fast Reserve
Type number
Description Fast Reserve provides the rapid and reliable delivery of active power through an increased output from generation or a reduction in consumption from demand sources, following receipt of an electronic dispatch instruction from National Grid. Fast Reserve service must commence within two minutes following instruction, at rates of 25MW or greater per minute and providing a minimum of 50MW done in the BM.
Comment
Example 0.044
Unit £m

Standing Reserve

Title Standing Reserve
Type number
Description Standing Reserve (the service that preceded STOR) was designed to allow for sufficient short-notice providers to be available to secure the system following generation loss and unforeseen changes in demand within 20 minutes. Done in the BM.
Comment
Example 0.013
Unit £m

Margin

Title Margin
Type number
Description The difference between the level of demand and supply that is available to meet. Executed in the Balancing Mechanism.
Comment
Example 0.023
Unit £m

Other Reserve (Unwinding)

Title Other Reserve (Unwinding)
Type number
Description Correction for failure to delivery energy as contracted. Other Reserve (Unwinding) Costs associated with reversing a previously agreed BOA. 
Comment
Example 0.007
Unit £m

BM Constrained Margin

Title Balancing Mechanism Constrained Margin
Type number
Description Total system margin is reduced when Balancing Mechanism actions are required to solve an active constraint. Where additional margin is gained through replacement of the constrained margin the costs are reported here. 
Comment
Example 0.016
Unit £m

BM Constraints Total

Title Balancing Mechanism Total
Type number
Description Actions taken by the ENCC (Electricity Network Control Centre) for non energy system management reasons in BM (Balancing Mechanism)
Comment
Example 0.354
Unit £m

BM Constraints (1) E&W

Title Balancing Mechanism Constraints (England & Wales)
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in England and Wales. 
Comment
Example 0.083
Unit £m

BM Constraints (2) Cheviot

Title Balancing Mechanism Constraints (Cheviot)
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in Cheviot.  
Comment
Example 0.521
Unit £m

BM Constraints (3) Scotland

Title Balancing Mechanism Constraints (Scotland)
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in Scotland.  
Comment
Example 2.137
Unit £m

Black Start

Title Black Start
Type number
Description Black start is the procedure we use to restore power in the event of a total or partial shutdown of the national electricity transmission system. It means we can start up each power station in turn and reconnect them to the grid one by one. In this sort of emergency, a power station can get its electricity supply from a small back-up generating plant on the same site. But not all power stations have one of these, so we have agreements with other suppliers. They help us make sure we have enough black start arrangements in place in case we need them.
Comment
Example 0.02
Unit £m

Other

Title Other
Type number
Description Balancing Mechanism actions which do not meet any of the defined costs categorisation rules. 
Comment
Example 0.014
Unit £m

Total Trades

Title Total Trades
Type number
Description Total cost of actions taken by National Grid Electricity System Operator trading team ahead of BM time scales.
Comment
Example 0.139
Unit £m

Energy Trades

Title Energy Trades
Type number
Description This service is not currently used.
Comment
Example 0
Unit £m

Total Sys Trades

Title Total System Trades
Type number
Description The cost of actions taken for non energy system balancing requirements by National Grid Electricity System Operator trading team ahead of BM time scales .
Comment
Example 0.215
Unit £m

Trade Negative Reserve

Title Trade Negative Reserve
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 0.011
Unit £m

Trade Margin

Title Trade Margin
Type number
Description The difference between the level of demand and supply that is available to meet done in while trading.
Comment
Example 0.001
Unit £m

UTEV

Title UTEV
Type string
Description This service is not currently used.
Comment
Example
Unit

Trade Constrained Margin

Title Trade Constrained Margin
Type number
Description Total system margin is reduced when trade actions are required to solve an active constraint. Where additional margin is gained through replacement of the constrained margin the costs are reported here.
Comment
Example 0.007
Unit £m

Trade Constraints Total

Title Trade Constraints Total
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in trading. 
Comment
Example 0.213
Unit £m

Trade Constraints (1) E&W

Title Trade Constraints (England & Wales)
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in England and Wales.   
Comment
Example 0.155
Unit £m

Trade Constraints (2) Cheviot

Title Trade Constraints (Cheviot)
Type number
Description Actions taken by the Electricity Network Control Centre for non energy system management reasons in Cheviot.  
Comment
Example 0
Unit £m

Trade Constraints (3) Scotland

Title Trade Constraints (Scotland)
Type number
Description  Actions taken by the Electricity Network Control Centre for non energy system management reasons in Scotland.  
Comment
Example 0.044
Unit £m

Total SO-SO

Title Total System Operator to System Operator
Type number
Description It’s the total costs of System Operator to System Operator trades.
Comment
Example 0.054
Unit £m

Energy SOSO Trades

Title Energy System Operator to System Operator Trades
Type number
Description It’s the total costs of System Operator to System Operator energy trades
Comment
Example -0.015
Unit £m

Total SO-SO Sys

Title Total System Operator to System Operator System
Type number
Description Total System Operator to System Operator System Cost.
Comment
Example -0.03
Unit £m

SO-SO Margin

Title System Operator to System Operator Margin
Type number
Description System Operator to System Operator trades for the purposes of additional margin. Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit £m

SO-SO Constrained Margin

Title System Operator to Constrained Margin
Type number
Description It’s where National Grid Electricity System Operator have gained additional margin prior to the SO-SO trade. Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit £m

SO-SO Negative Reserve

Title System Operator to System Operator Negative Reserve
Type number
Description System Operator to System Operator for the purposes of negative reserve.  Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit £m

Ramping

Title Ramping
Type number
Description This service is not currently used.
Comment
Example 0
Unit £m

SO-SO invoked by external party

Title System Operator to System Operator invoked by external party
Type number
Description System Operator to System Operator trades which are initiated by third party System Operator. 
Comment
Example -0.03
Unit £m

SO-SO Constraints Total

Title System Operator to System Operator Constrained Total
Type number
Description Total System Operator to System Operator system cost.
Comment
Example 0
Unit £m

SOSO Constraints (1) E&W

Title System Operator to System Operator Constraints in England & Wales
Type number
Description System Operator to System Operator trades for non energy system management reasons in England and Wales. Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit £

SOSO Constraints (2) Cheviot

Title System Operator to System Operator Constraints in Cheviot
Type number
Description System Operator to System Operator trades for non energy system management reasons in Scotland. Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit 3

SOSO Constraints (3) Scotland

Title System Operator to System Operator Constraints in Scotland
Type number
Description System Operator to System Operator trades for non energy system management reasons on the Cheviot boundary. Invoked by National Grid Electricity System Operator.
Comment
Example 0
Unit £m

Total Ancillary Services (inc outstanding liabilities)

Title Total Ancillary Services (including outstanding liabilities)
Type number
Description Total sum of ancillary services including the outstanding liabilities.
Comment
Example 2.826
Unit £m

Total Ancillary Services (excl outstanding liabilities)

Title Total Ancillary Services (excluding outstanding liabilities)
Type number
Description Total sum of ancillary services excluding the outstanding liabilities.
Comment
Example 2.823
Unit £m

AS RESPONSE TOTAL

Title Ancillary Services Response Total
Type number
Description Sum of all the ancillary services response catogaries.
Comment
Example -0.106
Unit £m

BM Generator Response (Mandatory)

Title Balancing Mechanism Generator Response (Mandatory)
Type number
Description These are the Holding Payments ""Availability Payments"" for the Mandatory Dynamic Response Service.
Comment
Example 0.055
Unit £m

BM Generator Response (Commercial)

Title Balancing Mechanism Generator Response (Commercial)
Type number
Description These are the Holding Payments "Availability Payments" for a commercial Dynamic Response Service. They are computed:1. In accordance with the Search Results Web result Connection and Use of System Code methodology. and based on the instruction given by the National Grid Electricity System Operator control room, and the Primary, Secondary and HF response volumes that the unit can provide at 0.5Hz.
Comment
Example 0
Unit £m

BM Generator Response Energy (Mandatory)

Title Balancing Mechanism Generator Response Energy (Mandatory)
Type number
Description These are "Utilisation Payments" for the provision of the Mandatory Dynamic response Service, . These payments are computed in accordance with the Connection and Use of System Code response energy methodology based on the units deload, system frequency deviation from the target frequency, and the service instructed.
Comment
Example 0.01
Unit £m

BM Generator Response Energy (Commercial)

Title Balancing Mechanism Generator Response Energy (Commercial)
Type number
Description These are "Utilisation Payments" for the provision of the Commercial Dynamic response Service. These payments are computed in accordance with the Connection and Use of System Code response energy methodology based on the units deload, system frequency deviation from the target frequency, and the service instructed.
Comment
Example 0
Unit £m

Hydro Optional Response (Mandatory)

Title Hydro Optional Response (Mandatory)
Type number
Description These are the Holding Payments ""Availability Payments"" for the Mandatory Dynamic Response Service provided by Hydro units. This is computed: 1. In accordance with the CUSC 2. Based on the instruction given by NGESO control room. 3. Based on Primary, Secondary and HF response volumes that the unit can provide at 0.5Hz. note: Prices are submitted on a monthly basis.
Comment
Example 0
Unit £m

Hydro Optional Response (Commercial)

Title Hydro Optional Response (Commercial)
Type number
Description These are the Holding Payments ""Availability Payments"" for Commercial Dynamic Response Service provided by Hydro units under a bilaterally agreed contract. This is computed: 1. In accordance with the Individual contract agreed with the provider. 2. Based on the instruction given by NGESO control room. 3. Based on Primary, Secondary and HF response volumes that the unit can provide at 0.5Hz. note: Prices changes are adhoc.
Comment
Example 0.006
Unit £m

Hydro Optional Response Energy (Mandatory)

Title Hydro Optional Response Energy (Mandatory)
Type number
Description This is effectively a utilisation payment to Hydro Units supplying Mandatory Response per the CUSC. Payment is based on the amount of energy they are expected to deliver in response to a change fo system frequency above or below the target frequency of 50 HZ.
Comment
Example 0
Unit £m

Hydro Optional Response Energy (Commercial)

Title Hydro Optional Response Energy (Commercial)
Type number
Description This is effectively a utilisation payment to Hydro Units supplying Mandatory Response per the CUSC. Payment is based on the amount of energy they are expected to deliver in response to a change fo system frequency above or below the target frequency of 50 HZ.
Comment
Example 0.017
Unit £m

Hydro Spin Gen with LF

Title Hydro Spin Gen with Low Frequency
Type number
Description This is a payment for the period of time the unit is instructed to provide Spin Gen without low frequency.  This service allows BM units to provide Reserve and Synchronous compensation.
Comment
Example 0
Unit £m

Hydro Pump deload

Title Hydro Pump deload
Type number
Description This is a payment for the period of time the unit is instructed to provide Pump Deload with low frequency.  This service allows BM units to provide Primary and Secondary Response.
Comment
Example 0.001
Unit £m

BM Enhanced Frequency Response (commercial)

Title Balancing Mechanism Enhanced Frequency Response (commercial)
Type number
Description Enhanced frequency response (EFR) is a dynamic service where the active power changes proportionally in response to changes in system frequency. To provide EFR response is within one second to frequency deviations and operate in frequency sensitive mode within the operational envelope and associated restrictions set out in the invitation to tender. 
Comment
Example 0.034
Unit £m

Interconnector Response (Commercial)

Title Interconnector Response (Commercial)
Type string
Description This service is not currently used.
Comment
Example
Unit

NBM Enhanced Frequency Response (commercial)

Title Non Balancing Mechanism Enhanced Frequency Response (commercial)
Type number
Description These are our Fast Frequency Response Bridging contracts.
Comment
Example 0.026
Unit £m

NBM Demand Side Response (Commerical)

Title Non Balancing Mechanism Demand Side Response
Type number
Description Payment for Fast Frequency Response Bridging contract which was agreed with service providers which did not meet the minimum contract MW criteria required to supply the Fast Frequency Response service, but who would do in the future.
Comment
Example 0.021
Unit £m

BM Other Response (Commercial)

Title BM Other Response (Commercial)
Type number
Description This service is not currently used.
Comment
Example 0
Unit £m

NBM Other Response (Commercial)

Title Non - Balancing Mechanism Other Response (Commercial)
Type number
Description This service is not currently used.
Comment
Example 0.002
Unit £m

BM FFR Hydro (Tendered)

Title Balancing Mechanism Fast Frequency Response Hydro (Tendered)
Type number
Description This is the total paid for Availability and Nomination in respect of Balancing Mechanism service Providers.
Comment
Example 0.008
Unit £m

BM FFR Hydro Response Energy (Tendered)

Title Balancing Mechanism Fast Frequency Response Hydro Response Energy (Tendered)
Type number
Description This is effectively a utilisation payment to Balancing Mechanism Firm Frequency Response providers based on the amount of energy they are expected to deliver in response to a change for system frequency above or below the target frequency of 50 HZ.
Comment
Example 0.001
Unit £m

BM FFR (Tendered)

Title Balancing Mechanism Fast Frequency Response (Tendered)
Type number
Description This is the total paid for Availability and Nomination in respect of BM service Providers. Availability Fee is Paid per hour (£/hr) - for the hours for which a provider has tendered to make the service available for. Nomination fee (£/hr) - a holding fee for each hour used within FFR nominated windows.
Comment
Example 0.008
Unit £m

BM FFR Response Energy (Tendered)

Title Balancing Mechanism Fast Frequency Response Energy (Tendered)
Type number
Description This is effectively a utilisation payment to BM Firm Frequency Response providers based on the amount of energy they are expected to deliver in response to a change for system frequency above or below the target frequency of 50 HZ.
Comment
Example 0.001
Unit £m

NBM FFR (tendered)

Title Non Balancing Mechanism Fast Frequency Response(tendered)
Type number
Description This is the total paid for Availability and Nomination in respect of NBM service Providers.
Comment
Example 0.093
Unit £m

AS FAST RESERVE TOTAL

Title Ancillary Services Fast Reserve Total
Type number
Description Total of the ancillary service fast reserve we procure.
Comment
Example 0.241
Unit £m

Hydro Spin Gen No LF (Commerical)

Title "Hydro Spin Gen No Low Frequency (Commercial)
Type number
Description This is a payment for the period of time the unit is instructed to provide Spin Gen without LF.  This service allows BM units to provide Reserve and Synchronous compensation.
Comment
Example 0.17
Unit £m

BM Optional Fast Reserve ( tendered)

Title BM Optional Fast Reserve ( tendered)
Type string
Description This service is not currently used.
Comment
Example
Unit

NBM Optional Fast Reserve Availability (Tendered)

Title Non Balancing Mechanism Optional Fast Reserve Availability (Tendered)
Type number
Description Providers of the Optional Service will receive an Enhanced Rate Availability Fee (£/h) payment for periods of time where they provide National Grid (following dispatch) with enhanced MW run-up and run-down rates.
Comment
Example 0.002
Unit £m

NBM Optional Fast Reserve Utilisation (Tendered)

Title Non Balancing Mechanism Optional Fast Reserve Utilisation (Tendered)
Type number
Description (£/MW/h) payable for the energy delivered outside of a Firm Service Window.
Comment
Example 0.025
Unit £m

BM Firm Fast Reserve (Tendered)

Title Balancing Mechanism Firm Fast Reserve (Tendered)
Type number
Description Firm Fast reserve provides rapid and reliable delivery of active power through increasing output from generation or reducing consumption from demand sources. Power is deliverable within 2 minutes at a minimum ramp rate of 25 MW/Min.
Comment
Example 0.017
Unit £m

NBM Firm Fast Reserve Avail + Nom (Tendered)

Title Non Balancing Mechanism Firm Fast Reserve Avail + Nom (Tendered)
Type number
Description Firm Fast reserve provides rapid and reliable delivery of active power through increasing output from generation or reducing consumption from demand sources. Power is deliverable within 2 minutes at a minimum ramp rate of 25 MW/Min.
Comment
Example 0.011
Unit £m

NBM Firm Fast Reserve Utilisation (Tendered)

Title Non Balancing Mechanism Firm Fast Reserve Utilisation (Tendered)
Type number
Description (£/MW/h) payable for the energy delivered during a Firm Service window.
Comment
Example 0.015
Unit £m

AS STANDING RESERVE TOTAL

Title Ancillary Services Standing Reserve Total
Type number
Description Ancillary Services standing reserve total made up of ancillary services catogaries.
Comment
Example 0.146
Unit £m

BM STOR (Tendered)

Title Balancing Mechanism Short Term Operating Reserve
Type number
Description Short Term Operating Reserve (STOR) availability costs in respect of Balancing Mechanism Units.
Comment
Example Balancing Mechanism Short Term Operating Reserve
Unit £m

HYDRO STOR (Tendered)

Title Hydro Short Term Operating Reserve (Tendered)
Type number
Description The description will be made available soon.
Comment
Example 0.009
Unit £m

NBM STOR AVAIL (Tendered)

Title Non Balancing Mechanism Short Term Operating Reserve Available (Tendered)
Type number
Description Short Term Operating Reserve Availability costs in respect o Non-Balancing Mechanism Units.
Comment
Example 0.092
Unit £m

NBM STOR UTIL (Tendered)

Title Non Balancing Mechanism Short Term Operating Reserve Utilisation (Tendered)
Type number
Description Short Term Operating Reserve Utilisation costs based on capped energy delivered.
Comment
Example 0.034
Unit £m

BM Season/Term Reconciliations (Tendered)

Title Balancing mechanism Season/Term Reconciliations (Tendered)
Type number
Description  A reclaim of STOR payments where (a) Delivery is less than 95% of Expected in a given season and/or (b) Availability is less than 85% of contracted availability in a given financial year. 
Comment
Example 0
Unit £m

NBM Season/Term Reconciliations (Tendered)

Title Non Balancing Mechanism Season/Term Reconciliations (Tendered)
Type number
Description A reclaim of STOR payments where (a) Delivery is less than 95% of Expected in a given season and/or (b) Availability is less than 85% of contracted availability in a given financial year.
Comment
Example 0
Unit £m

AS OTHER RESERVE TOTAL

Title Ancillary Service Other Reserve Total
Type number
Description Sum of BM Warming, BM Demand Turn Up, BM Power Potential, BM GT Fast Start Avail (Commerial), NBM Demand Turn Up, Hydro Rapid Start, Hydro Optional Spin Pump.
Comment
Example 0.022
Unit £m

BM Warming (Commercial)

Title Balancing mechanism Warming
Type number
Description This payment covers both BM Start up and Hot Standby. BM start up is the process of bringing the generating unit to a state where it is capable of synchronising with the system within BM timescales.
Comment
Example 0.054
Unit £m

BM Demand Turn Up (commerical)

Title Balancing mechanism Demand Turn Up
Type number
Description The Demand Turn Up (DTU) service encourages large energy users and generators to either increase demand or reduce generation at times of high renewable output and low national demand.
Comment
Example 0
Unit £m

BM Power Potential

Title BM Power Potential
Type string
Description This service is not currently used.
Comment
Example
Unit

NBM Demand Turn Up (commerical)

Title Non Balancing mechanism Demand Turn Up (commerical)
Type number
Description The Demand Turn Up (DTU) service encourages large energy users and generators to either increase demand or reduce generation at times of high renewable output and low national demand. 
Comment
Example 0
Unit £m

BM GT Fast Start Avail (Commerial)

Title Balancing mechanism Gas Turbine Fast Start Avail (Commerial)
Type number
Description An availability payment paid to a unit for being capable of synchronising and achieving full load within 5 minutes of a frequency excursion beyond a pre-set limit.
Comment
Example 0.013
Unit £m

Hydro Rapid Start (Commercial)

Title Hydro Rapid Start (Commercial)
Type number
Description A Rapid Start payment is made following a rapid synchronisation of a BM Unit to the GB Transmission System when instructed by the National Grid Electricity System Operator control room.
Comment
Example 0
Unit £m

Hydro Optional Spin Pump (Commercial)

Title Hydro Optional Spin Pump (Commercial)
Type number
Description This is a payment for the period of time that a unit is instructed to provide the Spin Pump service - which allows BM units to provide Reserve and Synchronous compensation. 
Comment
Example 0.043
Unit £m

AS REACTIVE POWER TOTAL

Title Ancillary Services Reactive Power Total
Type number
Description Ancillary Services reactive total made up of BM/HYDRO Default Utilisation, BM Utilisation (Mandatory - SVA), BM Reactive Utilisation, BM Sync Comp Reactive ( Commerical), Power Potential ( Commercial) (Commercial) (Mandatory - CVA)
Comment
Example 0.022
Unit £m

BM/HYDRO Default Utilisation (Mandatory - CVA)

Title Balancing mechanism/HYDRO Default Utilisation
Type number
Description The description will be made available soon.
Comment
Example 0.313
Unit £m

BM Utilisation (Mandatory - SVA)

Title Balancing mechanism Utilisation (Mandatory - SVA)
Type number
Description Reactive power services are how we make sure voltage levels on the system remain within a given range. BM Default Utilisation is also known as Mandatory Reactive Power Utilisation, and utilisation payment for Lead (Absorbing) and Lag (Generating) MVARS paid in accordance with the Connection and Use of System Code. In this case the meter data on which payment is made is based on SVA meter data supplied by the service provider.
Comment
Example 0
Unit £m

BM Reactive Utilisation (Commercial)

Title Balancing Mechanism Reactive Utilisation (Commercial)
Type string
Description This service not currently used.
Comment
Example
Unit

BM Sync Comp Reactive ( Commerical)

Title Balancing Machanism Sync Compensation Reactive
Type number
Description Where a unit is able to provide reactive power by means of operating in synchronous compensation mode (synchronous spin) then it can be paid for being available to provide the Sync Comp service, as well as being paid when instructed to provide the sync comp service.
Comment
Example 0.003
Unit £m

Power Potential ( Commercial)

Title Power Potential ( Commercial)
Type string
Description This service not currently used.
Comment
Example
Unit

AS BLACK START TOTAL

Title Ancillary Services Black Start Total
Type number
Description Entire total of ancillary services for black start.
Comment
Example 0.429
Unit £m

BM/HYDRO Black Start Availability (commercial)

Title Balancing Mechanism / HYDRO Black Start Availability
Type number
Description Black Start Availability Costs supplied by Interconnectors.
Comment
Example 0.209
Unit £m

Interconnector Black Start Availability (commercial)

Title Interconnector Black Start Availability (commercial)
Type number
Description Black Start Availability Costs in respect of an Interconnector.
Comment
Example 0.002
Unit £m

BM Black Start Test (Commerical)

Title Balancing Mechanism Black Start Test
Type number
Description Black Start Test costs paid to BM units to cover the costs of undertaking a test of the service.
Comment
Example 0.173
Unit £m

BM Black Start Capital Contributions (Commerical)

Title Balancing Machanism Black Start Capital Contributions (Commerical)
Type number
Description Black Start Capital Contributions paid to BM units towards the development/maintenance of Black Start Capability.
Comment
Example 0.034
Unit £m

BM Black Start Feasibility (Commercial)

Title Balancing Machanism Black Start Feasibility (Commercial)
Type number
Description Black Start Feasibility payment paid to BM units towards the assessment of feasibility of providing the Black Start service.
Comment
Example 0
Unit £m

BM Black Start Warming (Commercial)

Title Balancing Machanism Black Start Warming (Commercial)
Type number
Description Warming costs payable under a Black Start contract to BM stations to keep the plant warm so that it is able to start up in the time-sales prescribed in the contract. There is no warming instruction required for this service to be provided.
Comment
Example 0.011
Unit £m

BM Black Start Other ( Commerical)

Title Balancing Machanism Black Start Other ( Commerical)
Type string
Description This service not currently used.
Comment
Example
Unit

SO-SO COSTS TOTAL

Title System Operator to System Operator Cost Total
Type number
Description The total cost of SO-SO
Comment
Example 0.056
Unit £m

SO-SO Trades (Commercial)

Title System Operator to System Operator Trades
Type number
Description Interconnector trades for services that alter the Energy flow across the Interconnector
Comment
Example 0
Unit £m

SO-SO Interconnector Capability (Commerical)

Title System Operator to System Operator Interconnector Capability (Commerical)
Type number
Description Payment to Interconnectors for a static response service
Comment
Example 0.046
Unit £m

NGIL Intertrip (Commercial)

Title National Grid Interconnectors Limited Intertrip
Type number
Description Payment to Interconnectors for the use of the Interconnector.
Comment
Example 0.01
Unit £m

AS CONSTRAINT COSTS TOTAL

Title Ancillary Service Constraint Costs Total
Type number
Description The total cost of ancillary services.
Comment
Example 1.717
Unit £m

BM Intertrip capability (Mandatory - CAP76)

Title Balancing Machanism Intertrip Capability
Type number
Description Annual fee to cover the installation of the scheme and staff training costs (£/settlement period) payable under the terms in the search results web result with site links Connection and Use of System Code (CUSC).
Comment
Example 0.004
Unit £m

BM Intertrip capability (Commercial)

Title Balancing Mechanism Intertrip capability (Commercial)
Type number
Description A capability payment for each settlement period that the unit is contracted to provide the Intertrip service.
Comment
Example 0.001
Unit £m

BM Intertrip Arming (Commercial)

Title BM Intertrip Arming (Commercial)
Type number
Description A fee payable whenever the Intertrip is armed by National Grid.
Comment
Example 0.01
Unit £m

Interconnector Intertrip Arming (Commercial)

Title Interconnector Intertrip Arming (Commercial)
Type number
Description A fee payable whenever an Interconnector Intertrip is armed by National Grid.
Comment
Example 0.002
Unit £m

BM Intertrip - trip (Mandatory and Commercial)

Title Balancing Machanism Intertrip - trip (Mandatory and Commercial)
Type number
Description A payment to cover the costs of wear and tear, and fuel costs when an intertrip is activated triggering the disconnection of generation or demand.
Comment
Example 0
Unit £m

BM Constraints ( Strike Price contracts)

Title Balancing Machanism Constraints ( Strike Price contracts)
Type number
Description These are contacts we procure to manage constraints.
Comment
Example 0.001
Unit £m

BM Contraints (Other)

Title Balancing Mechanism Constraints (Other)
Type number
Description Contracts not covered by other catogaries i.e.
Comment
Example 0.131
Unit £m

AS OTHER COSTS TOTAL

Title Ancillary Service Other Costs Total
Type number
Description The total cost of other ancillary services.
Comment
Example 0.002
Unit £m

Trading Option Fees

Title Trading Option Fees
Type number
Description This service not currently used.
Comment
Example
Unit

Bank Charges

Title Bank Charges
Type number
Description Interest costs associated with Ancillary Services payment adjustments.
Comment
Example 0.002
Unit £m

RTE Sterling adj

Title RTE Sterling adj
Type string
Description The description will be made available soon.
Comment
Example 0
Unit £m

AS OUTSTANDING LIABILITIES TOTAL

Title Ancillary Services Outstanding Liabilities Total
Type number
Description The total cost of outstanding liabilities i.e. Bank Charges and RTE Sterling adjustments and National Grid Identified liability.
Comment
Example 0.004
Unit £m

Customer Raised Disputes

Title Customer Raised Disputes
Type number
Description This is an estimated cost impact of a customer raised dispute in respect of the current financial year.   
Comment
Example 0.001
Unit £

National Grid Identified liability

Title National Grid Identified liability
Type number
Description This is an estimated cost impact of an issue known to National Grid Electricity System Operator in respect of the current financial year e.g. a backdated contract/data issue.   
Comment
Example 0.004
Unit £m