ECP-1 Solar and Wind Constraints
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Enduring Connection Policy 1 Constraints Report for Area I Solar October 2019 Version 1.0 DISCLAIMER EirGrid has followed accepted industry practice in the collection and analysis of data available. While all reasonable care has been taken in the preparation of this data, EirGrid is not responsible for any loss that may be attributed to the use of this information. Prior to taking business decisions, interested parties are advised to seek separate and independent opinion in relation to the matters covered by this report and should not rely solely upon data and information contained herein. Information in this document does not amount to a recommendation in respect of any possible investment. This document does not purport to contain all the information that a prospective investor or participant in the Single Electricity Market may need. For queries relating to the document or to request a copy contact: [email protected] or [email protected] COPYRIGHT NOTICE All rights reserved. This entire publication is subject to the laws of copyright. This publication may not be reproduced or transmitted in any form or by any means, electronic or manual, including photocopying without the prior written permission of the TSOs. ©EirGrid Plc 2019 The Oval, 160 Shelbourne Road, Ballsbridge, Dublin 4, D04 FW28, Ireland DOCUMENT HISTORY Version Date Comment 1.0 October 2019 Original release. ECP-1 Constraints Report for Area I: Solar Page 2 of 107 TABLE OF CONTENTS DOCUMENT STRUCTURE ................................................................................................................................................. 5 ABBREVIATION AND TERMS ......................................................................................................................................... 6 1 INTRODUCTION ....................................................................................................................................................... 9 1.1 OBJECTIVE .................................................................................................................................................................................... 9 1.2 BACKGROUND .............................................................................................................................................................................. 9 1.3 DEFINITION OF CURTAILMENT AND CONSTRAINT ............................................................................................................. 10 2 OVERVIEW ............................................................................................................................................................... 12 2.1 STUDY AREAS ........................................................................................................................................................................... 13 2.2 STUDY SCENARIOS ................................................................................................................................................................... 13 2.3 GENERATION SCENARIOS ........................................................................................................................................................ 14 2.4 STUDY YEAR (DEMAND AND NETWORK) AND FUTURE GRID .......................................................................................... 17 3 STUDY INPUT ASSUMPTIONS ........................................................................................................................... 18 3.1 NOTABLE STUDY ASSUMPTIONS ............................................................................................................................................ 18 3.1.1 Valid for these Generation Assumptions .......................................................................................................... 18 3.1.2 Data Freeze ................................................................................................................................................................. 18 3.1.3 Network outages for maintenance and reinforcement ............................................................................. 18 3.1.4 Network Requirement for Batteries and Conventional Generators...................................................... 18 3.1.5 Priority Dispatch for Renewable Generation Connecting After July 2019 ......................................... 19 3.2 NETWORK .................................................................................................................................................................................. 19 3.2.1 Transmission Network ............................................................................................................................................ 19 3.2.2 Distribution System .................................................................................................................................................. 22 3.2.3 Ratings and Overload Ratings ............................................................................................................................. 22 3.2.4 Transmission Reinforcements .............................................................................................................................. 22 3.2.5 Network Capability .................................................................................................................................................. 24 3.3 DEMAND .................................................................................................................................................................................... 24 3.4 INTERCONNECTION .................................................................................................................................................................. 25 3.4.1 North-South Tie Line ............................................................................................................................................... 25 3.4.2 Moyle Interconnector .............................................................................................................................................. 25 3.4.3 East West Interconnector (EWIC) ...................................................................................................................... 26 3.4.4 Additional Interconnection ................................................................................................................................... 26 3.4.5 Interconnector Capacities ..................................................................................................................................... 26 3.5 PRIORITY DISPATCH AND FUEL PRICES ............................................................................................................................... 27 3.5.1 Priority Dispatch for Wind and Solar Generation ........................................................................................ 27 3.5.2 Priority Dispatch for Thermal Generation ...................................................................................................... 27 3.5.3 Small-Scale Generation .......................................................................................................................................... 27 3.5.4 Fuel and Carbon Prices ........................................................................................................................................... 28 3.6 GENERATION ............................................................................................................................................................................. 29 3.6.1 Conventional Generation ....................................................................................................................................... 29 3.6.2 Renewable Generation ............................................................................................................................................ 30 3.7 SYSTEM OPERATION ................................................................................................................................................................ 35 3.7.1 Safe Operation (Security Constrained N-1) .................................................................................................... 35 3.7.2 Operational Constraint Rules ............................................................................................................................... 35 3.8 DS3 PROGRAMME .................................................................................................................................................................... 40 3.9 SEM CONSTRAINT GROUPS.................................................................................................................................................... 41 4 STUDY METHODOLOGY ...................................................................................................................................... 42 4.1 INTRODUCTION ......................................................................................................................................................................... 42 4.2 PRODUCTION COST MODELLING ........................................................................................................................................... 42 4.3 THE SOFTWARE: PLEXOS INTEGRATED ENERGY MODEL ................................................................................................