A-Z Finder

Data Exchange Test Flag

means a flag to indicate whether a Participant has successfully completed data exchange testing.

Data Processing Entity

means a person that submits Data Transactions on a Participant’s behalf as provided for in Section 3 of the Code.

Data Protection Legislation

means the Data Protection Acts 1988 and 2003 (Ireland) and the Data Protection Act 1998 (United Kingdom) and, in each case, all regulations, statutes and instruments made thereunder as may be amended from time to time and any other applicable legislation which implements Directive 95/46/EC and any amendment or replacement thereto.

means a query which may be required by a Participant or External Data Provider in relation to one or more Settlement Items in an Ex-Post Indicative Settlement Statement in accordance with paragraph 6.78 or 6.78A.

Data Record

means a set of data fields containing the field-level information within a Data Transaction complying to field-level rules.

Data Transaction

means a set of data included in a communication by a Party to the Market Operator, or by the Market Operator to a Party, which is of a type set out in any of Appendices F-L, and which is required to be made in accordance with the provisions of Appendices F-L and Agreed Procedure 4 “Transaction Submission and Validation”.

Data Verification Period

means the period when Participants have the opportunity to query any data included on the Ex-Post Indicative Settlement Statement in accordance with paragraphs 6.48 and 6.49.

For more information on Data Queries please click here(link to what is a data query factsheet)

Day1+ Deployment Date

means the date of SEM Day1+ deployment as proposed by the Market Operator and approved by the Regulatory Authorities, such date to be published on the Market Operator web site at least three Working Days in advance of the date concerned.

De Minimis Threshold

has the meaning set out in paragraph 2.20.

Debit Note

means a debit note issued to a SEM Creditor following and relating to an Unsecured Bad Debt.  The Debit Note will identify the amount by which the payment to the SEM Creditor shall be reduced from that set out in the previously submitted Self Billing Invoice.

Debit Note Excess

means, for a Participant, the amount by which a Debit Note exceeds the amount of the applicable Self Billing Invoice to which it relates.

Debited Participant

means the Participant who has money transferred from it to the Credited Participant as part of a Settlement Reallocation Agreement.

Default

means any material breach by a Party of the Code or the Framework Agreement.

Default Data

means the standing Commercial Offer Data and Technical Offer Data provided by a Participant on registration of each of its Units, but not Interconnector Units, as updated from time to time in accordance with the Code.

Default Interest

means a rate of interest being two percent (2%) above LIBOR.

Default Notice

means a Notice issued by the Market Operator specifying a Default by a Party to the Code.

Defaulting Participant

means a Participant which has not paid an Invoice by the Invoice Due Date and in respect of which a Credit Call has produced a sum which does not cover the Shortfall.  The term “Non-Defaulting Participant” shall be construed accordingly.

Defaulting Party

means a Party that is in Default.

Deload Break Point

means the break point which defines the shared MW boundary between the two Deloading Rates.  The first Deloading Rate applies from Minimum Stable Generation to the Deload Break Point, the second Loading Rate Hot applies from the Deload Break Point to 0 MW.

Deloading Rate

means the rate at which a Generator Unit decreases Output below Minimum Stable Generation.

Demand

means the consumption of Active Power.

Demand Control

has the meaning set out in the relevant Grid Code.

Demand Control Data Transaction

is a Data Transaction in relation to Demand Control detailed in Appendix K: “Market Data Transactions”.

Demand Reduction

means a controlled reduction in net consumption at a Demand Site by a Demand Side Unit in accordance with an instruction from the relevant System Operator.

Demand Side Unit

means one or more Demand Sites which comply individually or collectively as appropriate with the criteria set out in paragraph 5.151 and is so registered by a Participant.  A Demand Side Unit is classified as a Generator Unit under the Code.

Demand Site

means a single premises of a final customer connected to the Transmission System or Distribution System.

Deregistration

means the process whereby a Unit, or, in the case of Deregistration of all of its Units, a Participant, or an Interconnector, ceases to be registered for the purposes of participation in the Pool, and “Deregistered” and “Deregister” shall be construed accordingly.

For more information on Registration, please click here

Deregistration Consent Order

means an order issued by the Market Operator to a Party under paragraph 2.114.

For more information on Registration, please click here

Disclosing Party

has the meaning set out in paragraph 2.345.

Discount for Over Generation

means a factor by which prices applied in respect of a Generator Unit which over generates by more than the relevant Tolerance Band shall be reduced, and which is used in the calculation of Uninstructed Imbalances.

Discovered Error

A Discovered Error is an error in Meter Data  which has previously been submitted to the Market Operator for Settlement purposes. A Discovered Error can arise through illegal abstraction or a meter fault. A Discovered Error is valid if notified to the Meter Data Provider within the same timeframe as applicable for raising a Settlement Query as defined in section 6.101.

Dispatch Instruction

means an instruction given by the System Operator in relation to a Generator Unit which is Dispatchable which relates to the required level of Output of Active Power or mode of operation.

Dispatch Instruction and SO Interconnector Trades Data Transaction

is a Data Transaction in relation to Dispatch Instructions and SO Interconnector Trades detailed in Appendix K: “Market Data Transactions”.

Dispatch Production Cost

means the implied cost incurred by a Generator Unit, as determined from the Accepted Price Quantity Pairs, No Load Costs and Start Up Costs and any other relevant Commercial Offer Data and Technical Offer Data, of Output in accordance with Dispatch Instructions or Dispatch Quantities, as applicable.

Dispatch Quantity

means the average level of Active Power production for a Generator Unit in a Trading Period, expressed in MW, calculated as set out in Appendix O: “Instruction Profiling Calculations”.

Dispatch Ramp Down Rate

means the Generator Unit Ramp Down Rate specified in a Dispatch Instruction, for the purpose of Appendix O: “Instruction Profiling Calculations” only.

Dispatch Ramp Up Rate

means the Generator Unit Ramp Up Rate specified in a Dispatch Instruction, for the purpose of Appendix O: “Instruction Profiling Calculations” only.

Dispatch Start

means, in any Trading Period where the Dispatch Instructions for a Generator Unit require it to change its level of Output from a value less than or equal to zero MW of Active Power to a value greater than zero MW, the Generator Unit has a Dispatch Start in that Trading Period.  Otherwise the Generator Unit has no Dispatch Start in the Trading Period.  A Generator Unit may have only one Dispatch Start within a Trading Period.

Dispatch Warmth State

means the calculated Warmth State (being Cold, Warm or Hot) of a Generator Unit at any point in time consistent with the Dispatch Instructions for that Generator Unit at preceding times and the definitions of Cold Start, Warm Start and Hot Start.

Dispatchable

means, in relation to a Generator Unit, the ability of the Generator Unit to receive and act upon an instruction given by the System Operator to the Participant’s approved contact person or location to change the Output or manner of operation of the Generator Unit in accordance with the relevant Grid Code.  The terms “Dispatch” and “Dispatched” shall be interpreted accordingly.

Dispatchable Quantity

means Maximum Generation for Demand Side Units for the purpose of Appendix O: “Instruction Profiling Calculations” only.

Dispute

means a dispute as set out in paragraph 2.276.

means the agreement to be signed by the Disputing Party and the DRB in a Dispute in accordance with paragraph 2.299 in the form set out in Appendix B: “Dispute Resolution Agreement”.

means the dispute resolution board established pursuant to paragraphs 2.287 to 2.298.

means the process of resolving Disputes as set out in paragraphs 2.276 to 2.314.

Disputed Event

means an event, circumstance, claim, difference, Default, assertion of right or entitlement, or denial of right or entitlement in relation to which a Party seeks to raise a Dispute and in the case of a Dispute relating to a series of such events, shall mean the earliest disputed event.

means any Party to a Dispute.

Distribution Code

means, in respect of Ireland, the distribution code as defined in Section 2(1) of the Electricity Regulation Act 1999 (Ireland); and

means, in respect of Northern Ireland, the code of that title required to be prepared by the Transmission Owner, in its capacity as the owner or operator of the Distribution System, in accordance with its Transmission Owner Licence.

Distribution Connected

means where a Generator Unit or a constituent of a Supplier Unit is connected to a Distribution System.

Distribution Loss Adjustment Factor or DLAF

means the factor for each Unit in each Trading Period to adjust the Output or Demand of that Unit for the effect of Distribution Losses and as otherwise provided for in the Code.

Distribution Losses

means losses that are incurred (or avoided) on the Distribution System as electricity is transported to (or from) the relevant boundary of the Transmission System and the Distribution System from (or to) the relevant point of Connection to the Distribution System for the Generator Unit or Supplier Unit.

Distribution System

means, in respect of Ireland, all electric lines and any other electric plant which the Distribution System Operator may, with the approval of the Commission specify as being part of the DSO’s distribution system, and includes any electric plant, transformers and switchgear which is used for conveying electricity to final customers; and

means, in respect of Northern Ireland, all electric lines of the Distribution System Operator and any other electric lines which the NIAUR may specify as forming part of the distribution system, and includes any electrical plant and meters of the Distribution System Operator which are used in connection with electricity distribution by it.

Distribution System Operator

means, in respect of Ireland, the legal entity being the operator for the time being of the Distribution System for Ireland, as specified in the Distribution Code, as amended or replaced from time to time, in its capacity as operator of the Irish Distribution System; and

means in respect of Northern Ireland, the legal entity being the operator for the time being of the Distribution System for Northern Ireland in its capacity as the operator of the Northern Ireland Distribution System.  References to the “Distribution System Operators” shall be construed accordingly.

Droop

The percentage drop in the frequency that would cause the Generator Unit under free governor action to change its output from zero to its full capacity.

Dwell Time

means the duration for which the Generator Unit must remain at that Dwell Time Trigger Point during a change in its MW Output while ramping up or down between Minimum Generation and Maximum Generation.

Dwell Time Trigger Point

means a constant MW level at which a Generator Unit must remain while ramping up or down between Minimum Stable Generation and Maximum Generation.