Electricity

Tender description

A separate Interim Framework Agreement for DS3 System Services is being put in place for both EirGrid (as contracting entity for the Interim Framework Agreement applicable to Ireland) and SONI (as contracting entity for the Interim Framework Agreement applicable to Northern Ireland). The Services are split into a number of lots for each of the TSOs as follows: — Lots 1IE — 11IE relate to the System Services required by EirGrid. — Lots 1NI — 11NI relate to the System Services required by SONI. The requirements of each Service are detailed in the draft Interim Framework Agreements and in the relevant Grid Codes (see below links) as applicable. http://www.eirgridgroup.com/site-files/library/EirGrid/GridCodeVersion6.pdf http://www.soni.ltd.uk/media/documents/Operations/Grid-Code/SONI%20Grid%20Code%20Version%20Aug%202015.pdf Primary Operating Reserve or ‘POR’ has the meaning given to it in the Grid Code. Secondary Operating Reserve or ‘SOR’ has the meaning given to it in the Grid Code. Tertiary Operating Reserve 1 or ‘TOR1’ has the meaning given to it in the Grid Code. Tertiary Operating Reserve 2 or ‘TOR2’ has the meaning given to it in the Grid Code. RR (De-synchronised) means Replacement Reserve provided by the Providing Unit whilst it is De- synchronised or disconnected from the Power System. RR (Synchronised) means Replacement Reserve provided by the Providing Unit whilst it is Synchronised or connected to the Power System. Steady-State Reactive Power or ‘SSRP’ means Reactive Power Capability (Leading) and Reactive Power Capability (Lagging). Synchronous Inertial Response (SIR) is the Kinetic Energy (at a Frequency of 50Hz) of a Centrally Dispatched Synchronous Providing Unit multiplied by the SIR Factor (SIRF). Ramping Margin 1 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within one hour of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further two hours after the one hour period has elapsed. It is limited by the lowest Availability in that three hour period. Ramping Margin 3 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within three hours of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further five hours after the three hour period has elapsed. It is limited by the lowest Availability in that eight hour period. Ramping Margin 8 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within eight hours of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further eight hours after the eight hour period has elapsed. It is limited by the lowest Availability in that sixteen hour period. Primary Operating Reserve or ‘POR’ has the meaning given to it in the Grid Code. Secondary Operating Reserve or ‘SOR’ has the meaning given to it in the Grid Code. Tertiary Operating Reserve 1 or ‘TOR1’ has the meaning given to it in the Grid Code. Tertiary Operating Reserve 2 or ‘TOR2’ has the meaning given to it in the Grid Code. RR (De-synchronised) means Replacement Reserve provided by the Providing Unit whilst it is De- synchronised or disconnected from the Power System. RR (Synchronised) means Replacement Reserve provided by the Providing Unit whilst it is Synchronised or connected to the Power System. Steady-State Reactive Power or ‘SSRP’ means Reactive Power Capability (Leading) and Reactive Power Capability (Lagging). Synchronous Inertial Response (SIR) is the Kinetic Energy (at a Frequency of 50Hz) of a Centrally Dispatched Synchronous Providing Unit multiplied by the SIR Factor (SIRF). Ramping Margin 1 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within one hour of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further two hours after the one hour period has elapsed. It is limited by the lowest Availability in that three hour period. Ramping Margin 3 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within three hours of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further five hours after the three hour period has elapsed. It is limited by the lowest Availability in that eight hour period. Ramping Margin 8 is the increased MW Output and/or MW Reduction that a Providing Unit can provide to the Company within eight hours of the Company issuing a Dispatch Instruction to a Service Provider and that the Providing Unit can maintain for a further eight hours after the eight hour period has elapsed. It is limited by the lowest Availability in that sixteen hour period.