Final Recommendation Report of the Modifications Committee
Report
FRR_25
Reference
Modification
Mod_25_07 Commercial Offer Data for
Proposal
Interconnector Units
Reference:
Date of Issue:
10/12/07
Category:
Standard
Mod Originator :
MO
Meeting No(s):
Meeting 10
Reason for Issue:
For Regulatory Authority Decision
Section 1
(a) Summary of Modification Committee Recommendations
This Modification aims to remove any ambiguity around how PQ pairs for interconnector units are
applied.
Recommendation Summary
Having considered the Proposed Modification at the abovementioned Meeting, the Modification
Committee recommends
1. The Proposed Modification should be Made
2. With Implementation date of 20th December 2007
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(b) Rationale behind Modification Committee Recommendations
(Note to Committee: The RA’s require explanation here of a. whether and b. how the proposed
modification would better facilitate the achievement of the Code Objectives)
This Modification was raised as a response to queries into helpdesk. There was uncertainty about
how PQ pairs are applied for Interconnector Units and this Mod aims to remedy this uncertainty*.
Commercial Offer Data will be used by the system as stated in 5.100 ‘The Market Operator shall
procure that the Market Schedule Quantity for each Energy Limited Generator Unit shall be as
determined by the MSP Software based on the Technical and Commercial Offer Data of the Energy
Limited Generator Unit, including the Energy Limit, the Energy Limit Period and the Energy Limit
Factor, and shall be Physically Feasible.’
This Modification aims to ensure that there is no ambiguity about the system application of the
Commercial Offer Data and therefore attempts to fulfill the Code objective in 1.3:
3. to facilitate the participation of electricity undertakings engaged in the generation, supply
or sale of electricity in the trading arrangements under the Single Electricity Market;
and
5. to provide transparency in the operation of the Single Electricity Market;
(*Comments from Jon O’Sullivan: There are 2 availability controls; an active capacity that IA
assigns and also set max import and export capacity in systems. If Units have bought capacity,
you set the capacity in market systems to be zero. Units set their own internal max import and
export availability through central market systems, then set max import and export in central
market systems to be 0. You can’t trade more than what is traded in MITS system)
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Section 2
(a) Summary of Impacted Parties
Generators
N
Demand Side Units
N
Interconnector Units
Y
Detail of impact
Additional information provided on how data is
used
Suppliers
N
TSO
N
MO
Y
MDP
N
(b) Summary of Impacted Documents/Systems
Detail of impact
Code Provisions
Y
New section 5.56 a
Business Processes
N
Legal requirements
N
Grid Code
N
Other
N
Systems
N
(c) Proposed Modification (Original Draft)
This section contains the text of the original draft of the modification proposal
5.52
Commercial Offer Data for Interconnector Units must only include:
1.
Up to ten Price Quantity Pairs for each Trading Period during the Trading Day for
each Interconnector Unit, where negative Quantities relate to exports from the Pool;
2.
Maximum Interconnector Unit Import Capacity offered on the Interconnector Unit for
each Trading Period in the Trading Day; and
3.
Maximum Interconnector Unit Export Capacity offered on the Interconnector Unit in
each Trading Period in the Trading Day.
For an Interconnector Unit the relevant Price Quantity Pairs for each Trading Period in the
Optimisation Time Horizon shall apply only over the range from the Maximum Interconnector
Unit Export Capacity to the Maximum Interconnector Unit Import Capacity in Trading Period
h, where for each Trading Period h in the Optimisation Time Horizon:
a. the Price of the first Price Quantity Pairs to have a Quantity exceeding the Maximum
Interconnector Unit Export Capacity shall apply between the Maximum
Interconnector Unit Export Capacity and that Quantity;
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b. the Price of the last Price Quantity Pair to have a Quantity less than the Maximum
Interconnector Unit Import Capacity shall apply between that Quantity and the
Maximum Interconnector Unit Import Capacity,
where the relevant Price Quantity Pairs for Trading Period h within the first Trading Day of the
Optimisation Time Horizon are the Accepted Price Quantity Pairs submitted in Commercial Offer
Data for that Interconnector Unit and Trading Period, as modified in accordance with paragraph
N.48, while the Price Quantity Pairs used for each Trading Period h in the Ending Overlap
Optimisation Period are the Price Quantity Pairs for that same Interconnector Unit and the
corresponding Trading Period h in the Trading Day associated with the Optimisation Time Horizon.
Modification Proposal Justification
The addition of further text in Clause 5.52 will give clarity about how the MSP Software will treat
the submitted Import and Export capacities.
Implication of not implementing the Modification
May be lack of clarity regarding the application of Price Quantity Pairs in Ex Ante Indicative MSP
Runs
(d) Proposed Modification (Recommended for Approval by Committee)
This section contains the text of the Approved version of the modification proposal, if different from above
N/A – as above
(e) Details of Alternative proposal raised
If appropriate, a later version or a resubmitted Modification Proposal details should be entered here
Instead of inserting this new paragraph after section 5.52, insert all text into a new Section 5.56a.
Also corrected was an initial drafting error, as there was a new paragraph which should have been
highlighted ‘where the relevant Price Quantity …’ In addition, a typo, as highlighted by Iain Wright
in the modifications committee meeting is corrected in subclause (a), line one.
5.56a For an Interconnector Unit the relevant Price Quantity Pairs for each Trading Period in the
Optimisation Time Horizon shall apply only over the range from the Maximum Interconnector Unit
Export Capacity to the Maximum Interconnector Unit Import Capacity in Trading Period h, where for
each Trading Period h in the Optimisation Time Horizon:
a.
the Price of the first Price Quantity Pair to have a Quantity exceeding the
Maximum Interconnector Unit Export Capacity shall apply between the Maximum
Interconnector Unit Export Capacity and that Quantity;
b.
the Price of the last Price Quantity Pair to have a Quantity less than the Maximum
Interconnector Unit Import Capacity shall apply between that Quantity and the
Maximum Interconnector Unit Import Capacity,
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where the relevant Price Quantity Pairs for Trading Period h within the first Trading Day of the
Optimisation Time Horizon are the Accepted Price Quantity Pairs submitted in Commercial Offer
Data for that Interconnector Unit and Trading Period, as modified in accordance with paragraph
N.48, while the Price Quantity Pairs used for each Trading Period h in the Ending Overlap
Optimisation Period are the Price Quantity Pairs for that same Interconnector Unit and the
corresponding Trading Period h in the Trading Day associated with the Optimisation Time Horizon.
(f) Dissenting or Other Opinions
This section contains a summary of any objections to the approved modification proposal/ if appropriate, or
feedback from the following: MO, TSO, Industry Expert or Consultant opinions
n/a
Section 3
Results of Modification Consultation
Q.
Consultation Question
Yes
No
Neutral
N/A
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Section 4
(a) Committee’s Final Recommendation to the Regulatory Authority
On the basis of the above discussions, the Committee agreed a UNANIMOUS/MAJORITY
Recommendation to the RA’s that this Proposed Modification SHOULD/ SHOULD NOT be made
On the basis of the Proposal which incorporates the ORIGINAL/REVISED wording as detailed in
Section 2.
(b) The Committee Recommends the following Implementation Approach and Timelines
The modification should be implemented on a: TRADING DAY/ SETTLEMENT (CALENDAR) DAY
basis
The Implementation Date of the Modification should be: 20th December 2007
Assuming the RA Decision is made on/before N/A
Or no earlier than: N/A
Or no later than: N/A
(c) Proposed Modification Implementations Cost
1
This section contains a summary of the cost associated with implementing the proposed modification.
Cost (€)
Vendor
SMO
Total Cost (€)
N/A
(d) Proposed Modification Estimated Effort Time
This section contains details of the effort time required to design and develop the proposed
modification.Include Detailed description of long it will take to perform each change
Effort Time (man days)
Vendor
SMO
Total Effort Time
N/A
½ day
½ day
(list each change below)
Code Change
Please complete this form and return it to Secretariat by e-mail to
[email protected]
1
Note: These man days and costs may need to reflect a combination of Vendor costs and SMO additional costs.
Any further modifications to the outline rules may have an impact both on the estimated costs and the
estimated implementation date of the change.
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