bsc panel 212a
DESCRIPTION
BSC Panel 212a. 9 May 2013. DECC: Update on Electricity Market Reform. Alice Douglas/ David Osborne. 9 May 2013. Settlement Agent for FIT Contracts for Difference. Update for BSC Panel. 9 May 2013 Alice Douglas. BSCCo to be designated as EMR Settlement Agent. - PowerPoint PPT PresentationTRANSCRIPT
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BSC Panel 212a
9 May 2013
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DECC: Update on Electricity Market
Reform
Alice Douglas/ David Osborne9 May 2013
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Settlement Agent for FIT Contracts for Difference
Update for BSC Panel
9 May 2013
Alice Douglas
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» Both for Contracts for Difference and Capacity Mechanism
» Announced in OJEU for transparency
» No challenges to designation received
» Designation through Code and Licence changes using powers in the Energy Bill – after Royal Assent
BSCCo to be designated as EMR Settlement Agent
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Anticipate that Settlement Agent will carry out measurement and
payment functions
Measurement
Receive data
Metered output
Market share
Calculate
payments
Calculate
collateral
Mechanics of payment
Invoicing
Collection of collateral
Monitoring payment
Reconciliation
Data dispute
management
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» Contracts for Difference regime in place in 2014Consultation on draft secondary
legislation autumn 2013Secondary legislation introduced to
Parliament early 2014Counterparty to be designated mid
2014CfD payments may be required from
end 2014» System design and set-up: up to 18
months
Challenging timescales to meet
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» Clear that BSC Parties should not shoulder the cost of EMR
» Elexon’s enduring CfD settlement role will be funded by the Counterparty (operational costs to be recovered from suppliers)
» Significant set-up cost for CfD systems» DECC will pay a grant to Elexon to
compensate for the work undertaken by Elexon in preparation for its anticipated statutory role
» Potential efficiencies with Capacity Market being considered
BSC Parties will not cover cost of EMR
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» Aiming for 4-6 weeks but some risks exist.
» Monthly payments in advance – ‘trued up’ against actual spend
» Milestone payments for work by external contractors.
Grant terms under development
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» Monthly reports to DECC and BSC Panel» Fortnightly DECC/Elexon project
management discussions at ‘working level’
» Role of skeleton team for Counterparty Body
» Programme Board for delivery to be established – membership TBC
Governance and transparency
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Ofgem: Update on Longer Term
Settlement Reform
Jonathan Amos9 May 2013
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Smarter Markets Programme:Electricity settlement project
BSC Panel meeting9 May 2013
Jonathan Amos and Grant McEachran
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Background – Smarter Markets Programme
Smarter energy markets
Smarter Markets Programme:• Change of supplier• Electricity settlement• Demand-side response• Consumer empowerment and
protection
Other Ofgem and Government policy, as well as industry activity
We aim to have reforms in place as soon as reasonably practicable and by the end of roll-out at the latest
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Way forward – scoping reform
• Existing issues• Future outcomes
1. SCOPING THE PROBLEM
2. SCOPING THE APPROACH
• Objectives• Scope• Process
Our work will provide a robust platform for progressing any reforms
Conclude by Q1 2014
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Why do we need to scope out reform?
RISK 1.
Ofgem is best placed to mitigate both risks by scoping reform
Drivers of reform are not fully understood
Incentives of industry may not be sufficiently aligned with those of consumers
RISK 2.
Reform does not deliver for consumers
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Opportunities to get involved in our work
APR MAY JUN JUL AUG SEP
SET UP
Explain our work & discuss approach to engagement
Relevant forums & bilateral discussions
PROBLEM DEFINITION
Bilateral discussions & workshop
Identify existing issues and future outcomes
APPROACH
Workshop
Discuss scope and objectives
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Questions
We would welcome views on:• our planned approach to scoping out reform• how we can involve the BSC Panel in our work
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Report on Progress of Modification
Proposals
Adam Lattimore9 May 2013
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Modifications Overview
New Issue 46, Issue 47Definition -Assessment P283, P291Report P292With Authority P272, P286
Authority Determined -
Self-Gov Determined -
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212a/04P292 ‘Amending
Supplier & Meter Operator Agent
responsibilities for smart Meter
Technical Details’Simon Fox
9 May 2013
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P292 BackgroundMeter Technical Details
• MTDs record for Smart Meters will record• Physical attributes of the Meter• Smart capabilities of the Meter• Current Configuration of the Meter
• MOAs use MTDs to manage any requested work on site
• NHHDCs use MTDs to validate Meter reading data for Settlement, in particular the mapping of the physical registers on the meter to the logical registers used in profiling to allocate energy to the correct time of use periods
• LDSOs and Suppliers use MTDs to translate Register Read information received on D0010
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P292 BackgroundLegacy NHH MTD Arrangements
• MOA• install & maintain Meters via site visit when requested by
Suppliers• responsible party for maintaining MTDs, including any
configurations• forward MTDs to any other participant who requires this
information e.g. NHHDCs, MOAs or LDSOs
• Suppliers• responsible for ensuring its appointed MOA carries out the
above
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P292 BackgroundDECC SMIP Principles
For Smart Meters• Meter Operators
• Will install & maintain Meters via site visit when requested by Suppliers
• Will no longer configure Metering Equipment
• Suppliers• Will be responsible for recording and maintaining the current
configurations of each SMS device• Will, once the SMS is configured, forward on these
configuration settings to any other participant who requires this information e.g. NHHDCs, MOAs or LDSOs
• become the data owner and responsible party for all MTDs
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• This group met seven times between 27 Feb 12 and 12 Feb 13• Took as its starting point option 2 (of 5) in the Smart Metering
Implementation Programme (SMIP)s ‘Legacy Systems Changes’ paper – Supplier distributes MTD using existing flows
• Also reviewed the SMIP requirement to amend the installation request to include other smart metering equipment and what the response flow should be
• By incorporating other smart equipment in the ‘device details’ flow, and making a distinction between device details (MOA responsibility) and configuration details (Supplier details) and non-smart / smart flows arrived at CP1388 (effectively Option 5 in the ‘Legacy Systems Changes’ paper)
• Issued a consultation on solution elements (e.g. new flows, installation requests/responses) in Oct 12.
P292 Background:BSC-MRA Working Group
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• E.ON raised P292 to address the need for the BSC to
• reflect the new obligations on MOAs and Suppliers - of Suppliers establishing and sending MTDs; and
• enable the necessary changes to Code Subsidiary Documents
P292Issue
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• Proposed Solution, amend
• Section S to reflect that Suppliers are responsible for ensuring the establishment and maintenance of MTDs for smart NHH Metering Systems and that these are passed to other parties, rather than MOAs; and
• Section X to include a definition of the Smart Metering Equipment Technical Specification
P292Proposed Solution
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• Report Phase
• CP1388
• Implementation - June 2014 BSC Systems Release
• The Case for Change - Applicable BSC Objective (d)
• Recommendations - To approve, but not under self-governance
P292Panel’s Initial Views
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P292Report Phase Consultation Responses (1)
Report Phase Consultation Questions Yes NoDo you agree that the draft legal text, in Attachment A, delivers the intention of P292? 6 2
Do you agree with the Panel’s suggested Implementation Date? 5 3
Do you agree with the Panel’s view that P292 better facilitates the achievement of BSC Objective (d)?
6 2
Do you agree with the Panel’s view that the Proposed Modification shouldn’t be progressed as a self-governance modification?
7 1
Do you agree with the Panel’s views that the Proposed Modification should be approved? 5 3
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• The majority of respondents agree that the draft legal text delivers the intention of P292 • some minor amendments
• Arguments against proposed legal text• Section L2.4 already sets out the responsibility of the Supplier
for establishing, maintaining and providing MTDs, which it can delegate to its agents
• to capture the concept of compliance at time of installation• the SMETS may undergo changes under the SEC, so the BSC
should also reference the SEC
P292Report Phase Consultation Responses (2)
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• The majority of respondents support the Implementation Date
• Arguments against • Potentially unknown detailed solution• Alignment with DCC go-live date
• Arguments for• Provides framework to be in place in time for mass roll-out of Smart
Meters• Enables any changes to CSDs to come into effect at the same time
P292Report Phase Consultation Responses (3)
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• The majority of respondents agree that P292 would better facilitate Applicable BSC Objectives (d)
• Arguments against • Significant costs in system changes, with potentially limited duration• Unknown scope & impact of SEC on Settlement
• Arguments for• Enables Suppliers & NHHMOAs to fulfil future responsibilities• Reduction in number of parties involved in distributing the data• Only one that fitted
• BSC Objective (c)
P292Report Phase Consultation Responses (4)
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• The majority of respondents agree that P292 shouldn’t be subject to self-governance
• Arguments against • Changes Party obligations• Could result in wasteful use of resources in an appeal to the Authority
• Arguments for• P292 is an enabler to facilitate the change to how current obligations
will be delivered for smart Meters• Transfers obligations, not create new ones
P292Report Phase Consultation Responses (5)
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• The majority of respondents agree that P292 should be approved
• Arguments against • Already allowed for under Section L• Preferred / wish to be able to discuss alternatives• Not minimal change• Concern over reference to CP1388
• Arguments for• Aligns with SMIP operating model• Drive efficiency, timeliness, accuracy and reduce risk• Allow CSD changes
P292Report Phase Consultation Responses (6)
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NHHMOAs will be responsible for sending MTDs for Smart Meters to the NHHDC. This will mean that
• The BSC would not be in line with SMIP operating model
• Impact on CPs against CSDs; and
• Supplier to provide configuration details to the NHHMOA / NHHMOA act as a “post box” to provide the MTDs to the NHHDC and Supplier• This in turn will create greater risk to Settlement, as there will be no
defined processes or assurance in place
P292Consequences if P292 is not approved
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• We invite the Panel to• NOTE the P292 Draft Modification Report and the Report
Phase Consultation responses;• CONFIRM the recommendation to the Authority contained in
the P292 draft Modification Report that P292 should be made as it would better facilitate Applicable BSC Objective (d);
• APPROVE an Implementation Date for P292 (if approved) of 26 June 2014;
• APPROVE the BSC legal text for P292; and• APPROVE the P292 Modification Report or INSTRUCT the
Modification Secretary to make such changes to the report as the Panel may specify.
P292Recommendations
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212a/05Request to raise a
Modification: ‘Changes to BSC Section H ‘Audit’ and
BSC Service Description for BSC Audit to reflect current
Practice’David Barber
9 May 2013
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• The current Balancing and Settlement Code (BSC) Audit contract comes to an end on 30 September 2013
• The new contract for the BSC Audit and
Qualification Service Provider starts on 01 October 2013
• ELEXON is currently undertaking a competitive tender process to appoint the new BSC Auditor and Qualification Service Provider.
Background
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• The Issue: • As part of the procurement project, ELEXON has reviewed BSC
Section H5 ‘Audit’ and the Service Description for BSC Audit and identified minor changes which require updating to reflect current processes, services and terminology
• Proposed Solution:• To reflect the current processes and services, the minor changes
identified in the Code and Service Description need to be made
Modification Proposal (1 of 2)
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• PAB recommendation to raise this Modification• Details of the changes provided to the PAB in March for
comment• PAB recommended that the Modification is raised to align the
BSC and the BSC Service Description for BSC Audit with current practice and the new BSC Audit and Qualification Service Provider contract from commencement on 01 October 2013
• Additional minor housekeeping changes• In addition to the changes agreed by the PAB, we have
included minor Housekeeping changes to both BSC Section H and the BSC Service Description
Modification Proposal (2 of 2)
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• Modification Proposal better facilitates the achievement of BSC Objective (d):• Ensures consistency between the Code, Service
Description and current practice• Ensures that the Code and Service Description align
with the new contract commencing on 01 October 2013
Applicable BSC Objectives
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• Recommend: Report Phase – approve
• Merits of Proposal are self-evident:• Believe it is self-evident that inconsistencies currently exist in
both the BSC and the Service Description compared to the current process.
• Recommend Implementation Date of:• 1 October 2013 in line with the commencement of the new
BSC Audit and Qualification Service contract.
Proposed Progression (1 of 2)
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• We are requesting Self-Governance
• We believe Proposal meets Self-Governance Criteria:• No material impact on consumers, competition, the
Transmission System or BSC governance• Corrects inconsistencies between the Code, Service
Description and current practice • No impacts on BSC Parties or those subject to BSC Audit
• Will issue Self-Governance Statement to Authority and seek views of Report Phase Consultation respondents
Proposed Progression (2 of 2)
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We invite the Panel to:• RAISE the Modification Proposal in Attachment A;• SUBMIT the Modification Proposal directly to the Report
Phase;• AGREE a provisional view that the Modification should be
made;• AGREE a provisional Implementation Date of 1 October 2013
in line with the commencement of the new BSC Audit and Qualification Service Provider contract;
• AGREE the draft legal text in Attachment B;• AGREE the draft changes to the BSC Service Description for
BSC Audit in Attachment C;• AGREE a provisional view that the Modification Proposal
meets the Self-Governance Criteria; and• AGREE that the Draft Modification Report should be issued for
consultation and submitted to the Panel at its meeting on 13 June 2013.
Recommendations
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Minutes of Meetings 211, 210, and Actions
ArisingAdam Richardson
9 May 2013
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Chairman’s ReportBSC Panel
Andrew Pinder
9 May 2013
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212a/01ELEXON Report
Peter Haigh
9 May 2013
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Distribution Report
David Lane
9 May 2013
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National Grid Update
Shaf Ali
9 May 2013
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European Update: Ofgem
Lisa Charlesworth
9 May 2013
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212a/01aReport from the ISG
9 May 2013
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212a/01bReport from the SVG
9 May 2013
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212a/01cReport from the PAB
9 May 2013
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212a/01dReport from the TDC
9 May 2013
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212a/01eReport from the JESG
9 May 2013
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212a/01fReport from the PSRG
9 May 2013
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212a/02Trading Operations
Report
14 February 2013
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212a/03Change Report
14 February 2013
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212a/06Scope and Terms of
Reference for Funding Shares Audit
Darren Draper
9 May 2013
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BSC Funding Shares Audit Scope
• Funding Shares used to charge ELEXON’s costs to Trading Parties
• Funding Shares Audit required by the BSC
• Panel required to agree scope of Audit
• Scope is limited to calculation of Funding Shares - costs separately audited
• Funding Share data accompanying ELEXON’s invoices can be checked against the website and assistance is always available from the Finance Team
•
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• Calculation of Main Funding Shares, SVA (Consumption) Funding Shares, SVA (Production) Funding Shares, and General Funding Shares (on a default basis)
• Calculation of Annual Funding Shares (used by FAA)
• Checking of BSC Cost shares through to invoices
BSC Funding Shares Audit Scope
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The Panel is invited to:
• APPROVE the proposed scope of the Funding Shares Audit
Recommendations
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212a/07Moving to ‘User Pays’
billing for Data Transfer costs and development of the ELEXON Portal to
deliver DTS FlowsMatthew Wood
9 May 2013
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• Over the last 2 years there have been significant price increases for those using the DTS, increases which have driven up costs for BSC Parties. These DTS price increases have taken annual spending from (circa) £800k in 2011/12 to £1m in 2012/13.
• ELEXON has the responsibility to look at ways of making operational efficiencies where possible and this has lead to us considering how we can reduce these DTS costs for BSC Parties. This has lead to two areas being considered;
• Firstly the use of an alternative mechanism for providing SVAA sent DTS Flows to parties. This involves parties being able to select to receive DTS Flows via the DTN, the ELEXON Portal, or a combination of both.
• Secondly ensuring that costs incurred through using the DTN are allocated to those who benefit from the service, this has led to the consideration of charging for the services on a ‘user pays’ basis.
212a/07 - Background
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• ELEXON (through SVAA) incur charges in 2 ways;
• DTS Traffic – monthly charge on a £ per MB basis• Gateway Rental/Maintenance – Annual Charges
• The BSC requires ELEXON to socialise our costs across all Parties by market share including those Parties who do not receive DTS Flows over DTN.
• We have been looking at a way of ensuring that costs incurred for using the DTN are allocated to those benefit from the service, this has lead to the consideration of charging for the services on a ‘user pays’.
• This would mean raising a Modification to the BSC allowing ELEXON to charge the recipients of DTS Flows sent from SVAA on a £ per MB basis, as well as allocating other fixed charges on a proportional basis.
212a/07 - Modification
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• ELEXON is aware that changing from the existing socialised cost to a ‘user pays’ basis would impact some Parties charges while reducing others’ and removing some Parties charges altogether.
• However we are currently examining the feasibility of using an alternative mechanism for providing SVAA sent DTS Flows to parties.
• At a high level this would involve SVAA operating a ‘Flow Manager’ whereby parties can select to receive DTS Flows via the DTN, the ELEXON Portal, or a combination of both.
• By placing DTS Flows on the ELEXON Portal for collection this would reduce a Parties’ charges under a ‘user pays’ basis.
212a/07 - Innovation
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212a/07 - Potential New Process
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• We invite the Panel to;
• NOTE the work being undertaken by ELEXON to consider a ‘user pays’ Modification and develop our requirements for the alternative delivery mechanism;
• NOTE that ELEXON will engage with BSC Parties and relevant Panel Committees over the next 2 months; and
• NOTE that ELEXON will provide a further update to the Panel in July.
212a/07 - Recommendations
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European Network Code Application
Robert Wilson
9 May 2013
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European Network Codes:RfG GB Grid Code Application Options
Summary of Presentation to JESG17 April 2013
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Summary Background Assumptions / Starting Point Differences between the ENTSO-E RfG and GB Grid
Code Implementation Options Advantages / Disadvantages Summary Views from JESG Members / Other Options
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Enabling renewables
Creating clear
connection rules.
Providing harmonisation to benefit
manufacturers.
Creating markets to
reduce risks.
Ensuring security of
supply
A coordinated approach to
system operations.
Greater optimisation to enhance efficiency.
More flexible markets (e.g. balancing).
Enhancing competition
A single market design across Europe
(in all timescales).
Promoting cross border
trade & enhancing liquidity.
Reducing risk for all
market players
3rd Package Intended Benefits
Security of supply
Competitiven
ess
Sustainabilit
y
Introduction to Network CodesDecember 2012
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ENC High Level Interactions
Market Codes
Capacity Allocation & Congestion
Management
Forward Markets
Balancing
Market Codes
Capacity Allocation & Congestion
Management
Forward Markets
Balancing
Capacity Allocation & Congestion
Management
Forward Markets
Balancing
Market Codes
Operational Security
Operational Planning & Scheduling
Load Frequency Control & Reserves
Operational Codes
Requirements for Generators
Demand Connection Code
HVDC
Connection Codes
Poss
ible
mar
ket s
plitti
ng
LCFR provides framework & Balancing takes actions
Balancing across interconnectors
Coordinated planning
Offshore generation
Generator actions
Loss of infeed
Capacity limits
Freq
uenc
y co
ntro
l
Generation / Demand
equivalent rules
Common structures and
issues; different
timescales
Frameworks & application
Demand side
response
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Development Progress Delivery of the Third Package
CACM FCA EB RFG DCC HVDC OS OPS LFCR
Formal invitation to develop Network Code 21/09/12 21/12/12 Q1/Q2-13
Public Consultation Period Begins* 01/02/13
Public Consultation Closes 03/11/12 07/01/13
Oct-13 Jan-14 04/01/13 Mar-13 Apr-13 Jun - 13
19/12/12 13/10/12ACER opinion published
Comitology Begins
Appr
oval
Deve
lopm
ent
Scop
ing EC invites ACER to develop Framework Guidelines
ACER Public consultation begins
Final Framework Guidelines published
Exte
nsiv
e St
akeh
olde
r En
gage
men
t
Final version submitted to ACER*
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ENC DevelopmentNetwork Code Content
Requirements for Generators Sets functional requirements which new generators connecting to the network (both distribution and transmission) will need to meet, as well as responsibilities on TSOs and DSOs .
Demand Connection Sets functional requirements for new demand users and distribution network connections to the transmission system, basic Demand Side Response capabilities, as well as responsibilities on TSOs and DSOs.
HVDC Sets functional requirements for HVDC connections and offshore DC connected generation.
Operational Security Sets common rules for ensuring the operational security of the pan European power system.
Operational Planning & Scheduling Explains how TSOs will work with generators to plan the transmission system in everything from the year ahead to real time.
Load Frequency Control & Reserves Provides for the coordination and technical specification of load frequency control processes and specifies the levels of reserves (back-up) which TSOs need to hold and specifies where they need to be held.
Capacity Allocation & Congestion Management
Creates the rules for operating pan-European Day Ahead and Intraday markets, explains how capacity is calculated and explains how bidding zones will be defined.
Balancing Sets out the rules to allow TSOs to balance the system close to real time and to allow parties to participate in those markets.
Forward Capacity Allocation Sets out rules for buying capacity in timescales before Day Ahead and for hedging risks.
Con
nect
ion
Cod
esSy
stem
Ope
ratio
n C
odes
Mar
ket
Cod
es
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Why is GB application complex?The following needs to be considered for all European Network Codes
(ENCs): Length of the implementation period; Potential requirement to coordinate with adjoining TSOs (and
NRAs); GB Implementation should be consistent across all codes with RfG
being the first. Consideration where the application requires subsequent ENCs to
be implemented in order to facilitate full enforcement; Range of legal instruments which require amendment. The structure of the current GB Grid Code is very different to that
of the proposed ENTSO-E RfG The Generation Thresholds in GB are very different to those is
Europe – there is significant overlap with the Distribution Code
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Implementation Option Considerations
Consideration must be given to the following points: All Codes (G Code / D Code) are to be fully consistent with the
requirements of the ENTSO-E RfG The proposals should be designed in the best interests of all
Stakeholders (Generators, DNOs, Transmission Owners System Operators and conventional customers (including Residential))
Minimise the number of Industry Codes that each party is required to comply with
Ensure contractual arrangements between appropriate parties is in place (Not for RfG implementation but an important factor)
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High-level RfG Implementation Options(from options paper)
Option 1 - write new code to cover ENC requirements but retain existing grid code as well. End up with two documents to maintain but on the plus side, it will be easier to interpret for existing non-captured users. Probably less pressure on the codes to converge than some of the other options which is both good and bad.
Option 2 - amend the GB Grid Code to include ENC requirements. Sits between options 1&4 but no separate advantages.
Option 3 - remove all ENC-related provisions from the GB Grid Code and create a stand-alone EU relevant document. End result similar to option 1 but messy realisation.
Option 4 - rewrite the Grid Code completely. A neater solution while potentially time-consuming. Retrospective application will be more of an issue
Option 5 - combine the GB Grid Code and GB Distribution Code. Could be used in conjunction with any of the other options. May be employed later.
Option 6 - amend the GB Grid Code to cross-refer directly to the RfG ENC. Not workable given the required Member State specificity contained within the ENCs
Options 1 & 4 to be taken forwards – which are in the first instance identical.
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The Industry Framework / ObligationsTransmission
GenerationLicences
SupplyLicences
DistributionLicences
GridCode CUSC
Bi-lateralAgreements
ChargingStatements
SevenYear
Statement
TransmissionLicence
BSC
1989 Electricity Act2000 Utilities Act2004 Energy Act
STC
TransmissionLicensees
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SupplyLicences
DistributionLicences
GridCode
CUSC
Bi-lateralAgreements
ChargingStatements
Licence Condition 10
BSC
1989 Electricity Act2000 Utilities Act2004 Energy Act
DCode
ConstructionAgreements
ConnectionAgreements
LEEMPS
Connectee
The Industry Framework / ObligationsDistribution
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Thresholds
Under the ENTSO-E Provisions Type A – C Power Generating Modules are connected below 110kV and ranging in size between 800 W – 30MW.
Type D is any Power Generating Module which is connected at or above 110kV or above 30MW.
In summary Type A – C Power Generating Modules will be connected to the Distribution Network and need to comply with the requirements of the Distribution Code
Type D Generating Modules will either be directly connected and need to comply with the requirements of the Grid Code or Embedded and need to meet the requirements of the Distribution Code and Grid Code.
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Or putting it another way…GB Generator Banding/Thresholds Existing requirements – as stated in Grid Code and SQSS:
Note: In Scotland, transmission voltages are ≥132kV In England & Wales, transmission voltages are ≥275kV
RfG banding (GB Synchronous Area):
Note: No geographic specificity Much smaller generators captured by code (down to domestic user levels)
SHET SPT NGETSmall <10MW <30MW <50MW
Medium 50-100MWLarge 10MW+ 30MW+ 100MW+
Generator Size
Direct Connection to:
RfG Type Generator Capacity
Connection Voltage
A 800W-1MW <110kVB 1-10MW <110kVC 10-30MW <110kVD 30MW >110kV
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Implementation Options
Option I – Place all the Type A – D RfG requirements in the GB Grid Code
Option II – Place all the Type A – C RfG requirements in the Distribution Code / Engineering Recommendations and all the Type D RfG requirements in the Grid Code
Option III – Place Type A – D RfG requirements in a set of Engineering Recommendations and reference Grid Code and Distribution Code to this
All options assume that the current Codes would need to be frozen for existing Generators.NB A further outcome, being a compromise between II and III depending on the technical issue may also be possible.
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838383
Option I Place all requirements in Grid Code
Grid Code
Type A:800W-1MWand <110kV
European law: European Network Codes
UK law and network codes
Type B:1-10MW
and <110kV
Type D:>30MW
or >110kV
Type C:10-30MW
and <110kV
Distribution Code(shell and reference) Type D, DNO connected
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Option I Place all requirements in Grid Code
AdvantagesAll Type A – D RfG Requirements reside in one documentRetain structure of existing GB Code and amend Generator clauses to ensure consistency with RfG Approach could be applied to other European Codes (eg HVDC and DCC)Removal of Regional Differences with Scotland
DisadvantagesHigh volume of current Small Power Stations would need to access the Grid
Code and other industry codes, resulting in complexity and high administrative burden
Contractual complexityGrid Code becomes very cumbersomeInteraction with DNO’s requires further examination
Legal text has been developed for a number of examples associated with this Option
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Examples Prepared – Option I(All obligations Type A – D included in Grid Code)
Frequency Range – No substantial change required to GB Code other than change to definitions.
Voltage Range – No substantial change required to GB Code other than Glossary and Definitions although there is a consistency issue relating to voltages between 110kV and 132kV.
Voltage Waveform Quality – No change required to GB Code – Quality of Supply issues are not captured in the ENTSO-E RfG
Power Output with Falling Frequency – Code amended to cater for all Type A – D Power Generating Modules. The section on HVDC has been removed although this would need to be re-inserted when the HVDC Code is implemented into the GB Grid Code.
Black Start – Minor amendments introduced, largely relating to the Glossary and Definitions.
Fault Ride Through – Substantial re-write of the existing GB Code. Detailed example written on the basis that all the requirements.
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Option IIPlace Type A - C requirements in D Code / ER and Type D in Grid Code
Grid Code
Engineering Recommendation(similar to G59)
Type A:800W-1MWand <110kV
European law: European Network Codes
UK law and network codes
Type B:1-10MW
and <110kV
Type D:>30MW
or >110kV
Type C:10-30MW
and <110kV
Distribution Code(shell and reference)
ER(similar to G83)
Type D, DNO connectedDCRP
GCRP
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Option II Place Type A - C requirements in D Code / ER and Type D in Grid Code
Advantages Retain structure of existing GB Code and amend Generator
clauses to ensure consistency with RfG Approach could be applied to other European Codes (eg HVDC and
DCC – see slide 19) Removal of Regional Differences with Scotland Contractual structure remains similar to current arrangements Clear definition of which code applies to which party
Disadvantages Small number of Users would need to access both G Code and D
Code as per current arrangements, but small number of Users believed to be affected.
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Grid Code(shell and reference)
Type A:800W-1MWand <110kV
European law: European Network Codes
UK law and network codes
Type B:1-10MW
and <110kV
Type D:>30MW
or >110kV
Type C:10-30MW
and <110kV
Distribution Code(shell and reference)
ENC Requirements – separately defined & with joint DC/GC governance
DCC HVDC SO codes etcRfG
Option IIIPlace Type A - D requirements in ER and G Code / D Code operate as a Shell / Reference
Type D, DNO connected
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Option IIIPlace Type A - D requirements in ER and G Code / D Code operate as a Shell / Reference
Advantages Avoids some Generators from having to read both G Code and
D Code
Disadvantages Places both the G Code and D Code as a shell in respect of
Generator Requirements. This is current D Code practice but not G Code.
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Pros and Cons
Colour code:Red – difficult or increases complexity
Amber – some issues
Green - straightforward
Option I: Place all Requirements in GC
Option II: Place Type A - C requirements in DC / ERs,
Type D stays in GC
Option III: Place all Type A - D requirements in ERs;
GC / DC operate as Shells / Reference
Ease of use - users Small generators have to refer to GC with high costs and admin
Clarity of which doc applies to which party will be OK
Probably easier for users
Ease of use - TSO/DNOs DNOs need to refer to GC Little change to current Harder - as multiple docs to maintain and coordinate
Number of documentsSingle document - and removes
need for DC references
Small number of users (type D, DNO connected) would need to refer
to both DC/GC
Multiple documents but does keep all users in either DC or GC
Retains existing codes structureYes, but GC becomes more
cumbersome through extension to more users
YesNo. Fundamental changes and
multiple documents
Retains contractual structure Increases complexity for D-connected gens
Yes Makes it simpler in principle
Applicable to other ENCsYes, straightforward although multiple changes will be reqd Yes, really as is
Yes, and can build in more annexes to DC/GC 'shells' fairly simply
DNO/SO/TO interactions require examination Yes - to cover D-connected usersYes - but requirements should
cascade fairly neatlyInteractions probably straightforward
and covered in DC/GC 'shells'
Removes regional differences with Scotland Yes Yes Yes
Approach
Issue
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Views from JESG Members invited:
Thoughts on options - which are preferred? Are there further options? What mechanism for effecting changes to the GB
codes should be used? What strategy is required to handle interactions
between the GB codes? What governance arrangements should be
considered? What major risks or pieces of work can be identified?
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Next Meeting:13 June 2013