XXXX. Crowsnest Pass Waste Heat Project. Interconnection System Impact Study

Transcription

1 XXXX Crowsnest Pass Waste Heat Project Report No. ASP2010- T062 August 2010 British Columbia Hydro and Power Authority British Columbia Hydro and Power Authority All rights reserved..

2 DISCLAIMER OF WARRANTY, LIMITATION OF LIABILITY This report was prepared by the British Columbia Hydro And Power Authority ( BCH ) or, as the case may be, on behalf of BCH by persons or entities including, without limitation, persons or entities who are or were employees, agents, consultants, contractors, subcontractors, professional advisers or representatives of, or to, BCH (individually and collectively, BCH Personnel ). This report is to be read in the context of the methodology, procedures and techniques used, BCH s or BCH s Personnel s assumptions, and the circumstances and constraints under which BCH s mandate to prepare this report was performed. This report is written solely for the purpose expressly stated in this report, and for the sole and exclusive benefit of the person or entity who directly engaged BCH to prepare this report. Accordingly, this report is suitable only for such purpose, and is subject to any changes arising after the date of this report. This report is meant to be read as a whole, and accordingly no section or part of it should be read or relied upon out of context. Unless otherwise expressly agreed by BCH: 1. any assumption, data or information (whether embodied in tangible or electronic form) supplied by, or gathered from, any source (including, without limitation, any consultant, contractor or subcontractor, testing laboratory and equipment suppliers, etc.) upon which BCH s opinion or conclusion as set out in this report is based (individually and collectively, Information ) has not been verified by BCH or BCH s Personnel; BCH makes no representation as to its accuracy or completeness and disclaims all liability with respect to the Information; 2. except as expressly set out in this report, all terms, conditions, warranties, representations and statements (whether express, implied, written, oral, collateral, statutory or otherwise) are excluded to the maximum extent permitted by law and, to the extent they cannot be excluded, BCH disclaims all liability in relation to them to the maximum extent permitted by law; 3. BCH does not represent or warrant the accuracy, completeness, merchantability, fitness for purpose or usefulness of this report, or any information contained in this report, for use or consideration by any person or entity. In addition BCH does not accept any liability arising out of reliance by a person or entity on this report, or any information contained in this report, or for any errors or omissions in this report. Any use, reliance or publication by any person or entity of this report or any part of it is at their own risk; and 4. In no event will BCH or BCH s Personnel be liable to any recipient of this report for any damage, loss, cost, expense, injury or other liability that arises out of or in connection with this report including, without limitation, any indirect, special, incidental, punitive or consequential loss, liability or damage of any kind. British Columbia Hydro and Power Authority, All rights reserved ii

3 COPYRIGHT NOTICE Copyright and all other intellectual property rights in, and to, this report are the property of, and are expressly reserved to, BCH. Without the prior written approval of BCH, no part of this report may be reproduced, used or distributed in any manner or form whatsoever. British Columbia Hydro and Power Authority, All rights reserved. iii

4 Executive Summary XXXX, the Interconnection Customer (IC), proposes to develop the Crowsnest Pass Waste Heat Project located in the vicinity of Sparwood in the East Kootenay area of British Columbia to deliver electric energy to BC Hydro (BCH) through the BCH 2008 Clean Power Call (CPC). This report identifies the required system modification for interconnecting the proposed Crowsnest Pass Waste Heat Project. The Crowsnest project consists of one generating station with a maximum power injection to the system of 8.5 MW at the Point of Interconnection (POI) which will be a tap in circuit 60L292 (NTL-CMO-CNT) approximately 0.1 km north of Crowsnest Substation (CNT, a separate customer-owned substation). The project will be interconnected to the system at the POI via a 0.1 km 69 kv customer owned transmission line from the station to the tap point in 60L292. The proposed Commercial Operation Date (COD) is November 1, 20. In order to interconnect the Crowsnest Pass Waste Heat Project and its facilities into the BCH Transmission System at the POI on line 60L292, this System Impact Study (SIS) has identified the following issues and requirements: Construction of a tap in 60L292 at the POI including the installation of a 69 kv disconnect switch to interconnect the IC s transmission line. In addition one set of 69 kv capacitive voltage transformers (CVTs) will need to be installed on the 60L292 terminal at NTL and the 60L292 primary and standby protection at NTL will need to be upgraded. A direct transfer trip scheme will be required from NTL to the IPP to trip the IPP entrance breaker when opening the 60L292 line terminal breaker at NTL in order to avoid temporary over-voltage conditions on 60L292. This will require Class 3 leased-circuit telecommunication facilities. Sacrificial surge arresters should also be installed on the 60L292 line terminal at Coal Mountain Operations Substation (CMO, a customer-owned substation) as a back-up in the event the transfer trip fails. Out-of-step protection is required for the Crowsnest generating unit. This will be provided by the IC. The voltage dip when energizing the Crowsnest Pass transformer will likely exceed the limits stated in the BCH interconnection guide. Consequently, a transformer inrush control scheme may be required, for example the installation of a 69 kv circuit breaker with independent pole operation and a Point-on-Wave (POW) controller. The IC will be responsible for undertaking any studies required to determine the necessity of an inrush mitigation scheme. The non-binding good faith cost estimate for interconnection Network Upgrades required to interconnect the proposed project to the BCH Transmission System is $1 million. The estimated time to construct the Network Upgrades required to interconnect the project to the BCH Transmission System is estimated at 12 months. The Interconnection Facilities Study report will provide greater details of the interconnection Network Upgrade requirements and associated cost estimates and estimated construction timeline for this project. British Columbia Hydro and Power Authority, All rights reserved. iv

5 Table of Contents DISCLAIMER OF WARRANTY, LIMITATION OF LIABILITY... ii COPYRIGHT NOTICE... iii Executive Summary...iv 1.0 Introduction Purpose of Study Terms of Reference Assumptions System Studies Steady State Pre-outage Power Flows Power Flow Based First Contingency Study Transient Stability Study Islanding Fault Analysis Analytical Studies Protection and Control & Telecommunications & Circuit Breakers Black Start Capability Transmission Line Upgrade Requirements Additional BCH Station Upgrades/Additions Other Issues Cost Estimate and Schedule Conclusion & Discussion... Appendix A: Area Single line diagram...12 Appendix B: IPP Model and Data Generator Model (GENROU):...Error! Bookmark not defined. 2. Excitation System Model (ESAC8B):...Error! Bookmark not defined. 3. Turbine Governor Model (IEEEG1)...Error! Bookmark not defined. Appendix C: Typical post disturbance stability swings of the BCH-Crowsnest Pass Waste Heat interconnected systems...14 British Columbia Hydro and Power Authority, All rights reserved. v

6 1.0 Introduction The project reviewed in this System Impact Study (SIS) report is as described in Table 1 below. Table 1: Summary Project Information Project Name Crowsnest Pass Waste Heat Project Interconnection Customer XXXX Point of Interconnection 60L292 approximately 0.1 km north of CNT IC Proposed COD November 1, 20 Type of Interconnection Service NRIS ERIS Maximum Power Injection (MW) 8.5 (Summer) 8.5 (Winter) Number of Generator Units 1 Plant Fuel Waste Heat Recovery XXXX, the Interconnection Customer (IC), proposes to develop the Crowsnest Pass Waste Heat Project located in the vicinity of Sparwood in the East Kootenay area of British Columbia to deliver electric energy to BC Hydro (BCH) through the BCH 2008 Clean Power Call. The Crowsnest Pass Waste Heat generating plant consists of one 12.5 MVA unit with a rated power factor of 0.8 lagging and 0.97 leading, located approximately 15 km southeast of Natal Substation (NTL). The maximum power to be injected to the BC Hydro system from this plant will be 8.5 MW and its Point of Interconnection (POI) to the BCH transmission system will be a tap in the 69 kv transmission line 60L292 (NTL-CMO-CNT) approximately 0.1 kilometers outside the Crowsnest Substation fence (CNT, a separate consumer-owned substation). 60L292 is a radial circuit approximately 16.5 km in length supplied by Natal Substation (NTL). The proposed Commercial Operation Date (COD) is November 1, 20. The Crowsnest Pass Waste Heat Project interconnection diagram is provided below in Figure 1. A single line diagram illustrating the East Kootenay transmission system in the NTL area is provided in Appendix A, Figure 2. British Columbia Hydro and Power Authority, All rights reserved. Page 1 of 17

7 Figure 1 Crowsnest Pass Waste Heat Project Interconnection Diagram 2.0 Purpose of Study The purpose of this SIS is to assess the impact of the interconnection of the proposed project on the BCH Transmission System. This study will identify constraints and Network Upgrades required for the reliable operation of the Transmission System. 3.0 Terms of Reference This study investigates and addresses the voltage and overloading issues of the transmission networks in the vicinity of the Crowsnest Pass Waste Heat generating station as a result of the proposed interconnection. Topics studied include equipment thermal loading and rating requirements, system transient stability and voltage stability, transient over-voltages, protection coordination, operation flexibility, telecom requirements and high level remedial action scheme requirements. BCH planning methodology and criteria are used in the studies. The SIS does not investigate the operating restrictions and other factors for the possible second contingency outages. Subsequent internal network studies will determine the requirements for reinforcements or operating restrictions/instructions for those kinds of events. Impact to the bulk transmission system is not included in the SIS and will be covered in a separate study. British Columbia Hydro and Power Authority, All rights reserved. Page 2 of 17

8 The work necessary to implement the network improvements identified in this SIS report will be described in greater detail in the Interconnection Facilities Study report for this project. 4.0 Assumptions The power flow conditions studied are base cases that include generation, transmission facilities, and load forecast representing the queue position applicable to this project. Applicable seasonal conditions and the appropriate study years for the study horizon are also incorporated. The 20 heavy winter, 2012 heavy summer and 2012 light summer load flow base cases were selected for this study. The study is based on the model and data information provided by the proponent in the Generator Interconnection Data Form for this project. Reasonable assumptions are made to complete the study and the report, whenever such information is unavailable. The existing BCH Transmission System in the vicinity of the IC, primarily the 69 kv transmission between Cranbrook Substation (CBK) and Aberfeldie Generating Station (ABN), presently has constraints that result in overloads under certain conditions. Those overloads are resolved by curtailing generation at the ABN and Elko (ELK) generating stations. The proposed Crowsnest generation has no significant impact on these overloads. 5.0 System Studies Power flow, short circuit and transient stability studies were carried out to evaluate the impact of the proposed interconnection. Studies were also performed to determine the protection, control and communication requirements and to evaluate possible over-voltage issues. 5.1 Steady State Pre-Outage Power Flows Pre-outage power flows are prepared to assess the impact of the proposed interconnection using three basic system load conditions: 20 winter peak load, 2012 summer light load and 2012 summer peak load, and defined generation conditions. A set of power flow diagrams including the Crowsnest Pass Waste Heat Project power injection is included in Appendix A for reference purpose. The steady-state power flow studies have indicated: - No voltage violations observed. - No circuits overloaded before and after the proposed interconnection. British Columbia Hydro and Power Authority, All rights reserved. Page 3 of 17

9 Table 2: Steady-state Pre-outage Power Flow Study Results System Load Condition 20 HW 2012 HS 2012 LS System configuration System Normal MW Injection from IPP Bus Voltage (in per unit) Power Flow (MW) CMO NTL NTL 1V1 BRM CBK 60L289 60L281 60L281 2L3 60L kv kv 66 kv 66 kv (ABN to (ELK (NTL (NTL (NTL kv CBK) to to to to FNE) FNE) CBK) CMO) No CRW System Normal No CRW System Normal No CRW Note: LS: light summer load; HW: heavy winter load; HS: heavy summer load British Columbia Hydro and Power Authority, All rights reserved. Page 4 of 17

10 5.2 Power Flow Based First Contingency Study Power flow based single contingency (N-1) studies have been conducted to check if the postdisturbance performance including bus voltage deviation and facility loading meets the planning criteria under different system load conditions including heavy winter, heavy summer and light summer. In the power flow analysis, no significant transmission equipment overload condition and no unacceptable voltage condition in the Transmission System was observed due to the proposed power injection from the Crowsnest Pass Waste Heat project. With the generation addition, only one new overload condition was identified: during an outage on 2L3 from CBK to NTL, the section of 60L289 (CBK-ABN) between WAR and ABN is marginally overloaded by approximately 2.9%. This marginal line overload can be mitigated by generation reduction at ABN. Table 3: Power Flow Study Results after Single Element Contingency Light summer (LS) no CRW: Line over loads with contingencies Light summer (LS) with CRW: Line over loads with contingencies 5.3 Transient Stability Study A series of transient stability studies under various system operating conditions including the heavy winter case and the most severe light summer case have been performed. The model of the generating project was based on the IC s data submission plus additional assumptions where the IC s data was incomplete/inappropriate. The models and data values of the key components are shown in Appendix B. The Crowsnest Pass Waste Heat Project interconnection model is based on the drawing below for transient stability analysis purposes. British Columbia Hydro and Power Authority, All rights reserved. Page 5 of 17

11 Figure 3 - The drawing for interconnection of the Crowsnest Pass Waste Heat Project British Columbia Hydro and Power Authority, All rights reserved. Page 6 of 17

12 The study indicated the addition of Crowsnest Pass Waste Heat Project generator will not result in any additional unstable conditions compared to the base case. The generator must be able to detect and trip for out-of-step conditions. Out of step relaying at the Crowsnest plant will be the responsibility of the IC. BCH can provide apparent impedance versus time plots of stable and unstable swings if requested. The transient stability study results for 2012 summer light load are summarized in Table 4. Table 4: Transient Stability Study Results. (Pre-outage condition: 2012 LS) Case Circuit Description 3 phase Fault Location Clearing Time (Cycles) Stability Performance Close End Far End Acceptable or Unacceptable 1 1 5L92 CBK-SEL CBK 3Φ CBK SEL L94 CBK-LGN CBK 3Φ CBK LGN L274 NTL- NTL 3Φ NTL Pocaterra POCATER L275 NTL-COLEMAN NTL 3Φ NTL N/A L281 NTL-ELK NTL 3Φ NTL ELK L281 NTL-ELK ELK 3Φ ELK NTL L285 NTL-SPD NTL 3Φ NTL N/A 8 60L285 NTL-SPD SPD 3Φ N/A NTL L287 ELK-CFE ELK 3Φ ELK N/A 10 60L287 ELK-CFE CFE 3Φ N/A ELK 60L288 NTL-EV1 NTL 3Φ NTL N/A 12 60L288 NTL-EV1 EV1 3Φ N/A NTL L289 CBK-ABN CBK 3Φ CBK ABN L289 CBK-ABN ABN 3Φ ABN CBK L292 NTL-CNT NTL 3Φ NTL N/A 16 60L292 NTL-CNT CNT 3Φ N/A NTL L3CBK-NTL CBK 3Φ CBK NTL L3CBK-NTL NTL 3Φ NTL 6 CBK 7 British Columbia Hydro and Power Authority, All rights reserved. Page 7 of 17

13 Case Circuit Description 3 phase Fault Location Clearing Time (Cycles) Stability Performance Close End Far End Acceptable or Unacceptable 1 Transformers 19 NTL 1V1 T1 138 NTL 3Φ NTL 138 kv NTL 69 kv 8 20 NTL 1V1 T 1 69 NTL 3Φ NTL 69 kv NTL 138 kv 8 21 NTL T3 230 NTL 3Φ NTL 230 kv NTL 69 kv 6 22 NTL T3 69 NTL 3Φ NTL 69 kv NTL 230 kv 6 23 CMO Transformer HT 69 CMO 3Φ CMO N/A 24 CNT Transformer HT 69 CNT 3Φ CNT N/A 4 Generators 25 SEV G1 SEV G1 3Φ SEV N/A 6 26 ELK G ELK G 3Φ ELK N/A 27 ABN G1 ABF G1 3Φ ABN N/A 6 28 CRW G1 CRW 3Φ CRW 5 N/A Note: 1 Unacceptable stability performance means unstable rotor angle results or violation of voltage dip according to BCH planning criteria. 5.4 Islanding Islanded operation is normally not an acceptable practice in BCH. Power quality protection will be required at the generating units to detect abnormal system conditions such as under/over voltage and under/over frequency and subsequently trip the units. The settings of these protective relays must conform to the existing BCH practice for generating plants so that the generator will not trip during normal ranges of voltages and frequencies. 5.5 Fault Analysis The short circuit analysis for the CPC System Impact Studies is based upon the latest BCH system short circuit model, which includes project equipment and impedances provided by the successful CPC Interconnection Customers. The model includes higher queued projects and planned system reinforcements but excludes the Northwest Transmission Line (NTL) and other lower queued projects. At this stage, the report does not provide Thevenin impedances at the Point of Interconnection (POI) due to uncertainties associated with the system reinforcement options identified for the CPC projects and the statuses of higher queued projects. However, these Thevenin British Columbia Hydro and Power Authority, All rights reserved. Page 8 of 17

14 impedances, including the ultimate fault levels at POI, will be made available to Interconnection Customers upon request. BC Hydro will work with the IC to provide accurate data, as required, during the project design phase. 5.6 Analytical Studies Temporary over-voltage conditions are anticipated in the system connecting the new IPP to NTL when the 60L292 line breaker at NTL is opened. Reasonably fast isolation of the IPP from the network will be required. Consequently, a direct transfer trip from NTL to the Crowsnest Pass will be required to trip the IPP entrance breaker whenever the 60L292 breaker at NTL is opened. Sacrificial surge arresters should also be installed at Coal Mountain Operations Substation (CMO, a customer-owned substation) as a back-up in the event the transfer trip fails. In addition, preliminary studies indicate that the voltage dip when energizing the Crowsnest Pass transformer will likely exceed the limits stated in the BC Hydro interconnection guide. A transformer inrush control scheme may be required, for example the installation of a 69 kv circuit breaker with independent pole operation and a Pointon-Wave (POW) controller that can time and close the poles separately in order to minimize the transformer inrush. The IC will be required to undertake the appropriate studies required to determine the necessity of an inrush mitigation scheme. 5.7 Protection and Control & Telecommunications & Circuit Breakers Protection, control and telecom requirements for the new Crowsnest Pass Waste Heat generator addition have also been reviewed. The main items are summarized below: Provide a direct transfer trip (DTT) from NTL to the IPP (refer to Sec. 5.6) using a Class 3 communications channel (i.e., third-party leased circuits). Replace the existing 60L292 primary and standby protection with modern microprocessor-based SEL-421 protection and install a three phase CVT in the NTL 60L292 line terminal. As a result of increased fault levels, review NTL 66 kv protection settings and revise as necessary. Provide broadband satellite communication from the IPP to BC Hydro ING DCP. The SCADA circuit will be provided via satellite communication. Provide the required telemetry and status information (per TIR) via a DNP3 RTU. The IPP will be polled by the satellite communications processor located at ING DCP, and the IPP s telemetry and status information will be available to the AREVA FEPs at that location. Other associated modifications in the system. British Columbia Hydro and Power Authority, All rights reserved. Page 9 of 17

15 5.8 Black Start Capability BCH does not require the proposed project to have black start (self-start) capability. However, if the IC desires their facilities to be energized from the BCH system, the IC is required to apply for an Electricity Supply Agreement. Upon receipt of this application, a plant pick-up study would be required to assess the impact of energizing the IC s facilities. A high level plant pick-up screening was performed as part of the SIS and any issues are identified in Section Transmission Line Upgrade Requirements To accommodate the Crowsnest Pass Waste Heat project s interconnection to the Transmission System the upgrades required are Installation of one standard 69 kv non-load break 2000 A GOAB switch in the customer tap circuit (switch owned by BCH) close to the tap point, and Installation of one standard 69 kv tap structure at the POI Additional BCH Station Upgrades/Additions To accommodate the Crowsnest Pass Waste Heat project s interconnection to the Transmission System, one set of 60 kv CVTs will need to be installed in the 60L292 line position at NTL. In addition, sacrificial surge arresters should be installed in the 60L292 line terminal position at CMO as a back up in the event the direct transfer trip from NTL to the IPP fails (refer to section 5.6). 5. Other Issues There are no other issues identified at this stage Cost Estimate and Schedule The non-binding good faith cost estimate for interconnection Network Upgrades required to interconnect the proposed project to the BCH Transmission System is $1 million. The Facilities Study Report will provide more accurate information of the cost estimates. The estimated time to construct the Network Upgrades required to interconnect the project to the BCH Transmission System is estimated at 12 months after the Standard British Columbia Hydro and Power Authority, All rights reserved. Page 10 of 17

16 Generation Interconnection Agreement is signed and a BCH capital project is approved. A more detailed construction time line will be provided in the Facilities Study Report. BCH system upgrades triggered by CPC projects are being determined and the IC may be required to post security to cover one or more upgrade. Further information will be provided over the next few months. 6.0 Conclusion & Discussion To interconnect the Crowsnest Pass Waste Heat project and its facilities to the BCH Transmission System at the POI on line 60L292, this System Impact Study has identified the following issues and requirements: Construction of a tap in 60L292 at the POI including the installation of a 69 kv disconnect switch to interconnect the IC s transmission line. In addition one set of 69 kv capacitive voltage transformers (CVTs) will need to be installed on the 60L292 terminal at NTL and the 60L292 primary and standby protection at NTL will need to be upgraded No unacceptable equipment overload condition in the Transmission System was observed in the power flow analysis due to the Crowsnest Pass Waste Heat Project interconnection under normal and N-1 contingencies No unacceptable voltage condition in the Transmission System was observed in the power flow and transient stability analysis due to the Crowsnest Pass Waste Heat Project interconnection under normal and N-1 contingencies No voltage instability has been observed in the Transmission System due to the Crowsnest Pass Waste Heat Project interconnection A direct transfer trip scheme will be required from NTL to the IPP to trip the IPP entrance breaker when opening the 60L292 line terminal breaker at NTL in order to avoid temporary over-voltage conditions on 60L292. This will require Class 3 leased-circuit telecommunication facilities. Sacrificial surge arresters should also be installed on the 60L292 line terminal at Coal Mountain Operations Substation (CMO, a customer-owned substation) as a back-up in the event the transfer trip fails Islanded operation is not allowed. Power quality protection is required to prevent/mitigate possible islanding operation Out-of-step protection is required for the Crowsnest generating unit. This will be provided by Crowsnest Pass Waste Heat Project The voltage dip when energizing the Crowsnest Pass transformer will likely exceed the limits stated in the BC Hydro interconnection guide. Consequently, a transformer inrush control scheme may be required - for example the installation of a 69 kv circuit breaker with independent pole operation and a Point-on-Wave (POW) controller to control the closing of the poles in order to minimize the transformer inrush. The IC will be responsible for undertaking any studies required to determine the necessity of an inrush mitigation scheme British Columbia Hydro and Power Authority, All rights reserved. Page of 17

17 Appendix A: Area Single line diagram Figure 2: Single line diagram British Columbia Hydro and Power Authority, All rights reserved. Page 12 of 17

18 Appendix B IPP Model and Data Crowsnest Pass Waste Heat Generator Model The contents of this section have been removed due to the proprietary nature of the information. British Columbia Hydro and Power Authority, All rights reserved. Page 13 of 17

19 Appendix C Typical post disturbance stability swings of the BCH-Crowsnest Pass Waste Heat interconnected systems 60L281 NTL-ELK 3 NTL Thursday, August 19, 2010, 10:03:36 Buf Binary Result File Scenario Contingency 1 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L281 NTL-E 2 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L281 NTL-E 3 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L281 NTL-E 4 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L281 NTL-E Generator relative angle (deg) : Reference Generator = [COULEE ] ' 1' 150 Bus # Bus Name ID Buf. 60 SEV 13G CRW 13G ABN 13G ELK 6G Base Scenario Time (sec) DSATools Output Analysis 9.0 Powertech Labs Inc. Copyright 2010 All rights reserved British Columbia Hydro and Power Authority, All rights reserved. Page 14 of 17

20 60L285 NTL-SPD 3 NTL Thursday, August 19, 2010, 10:09:00 Buf Binary Result File Scenario Contingency 1 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L285 NTL-S 2 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L285 NTL-S 3 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L285 NTL-S 4 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L285 NTL-S Generator relative angle (deg) : Reference Generator = [COULEE ] ' 1' 150 Bus # Bus Name ID Buf. 60 SEV 13G CRW 13G ABN 13G ELK 6G Base Scenario Time (sec) DSATools Output Analysis 9.0 Powertech Labs Inc. Copyright 2010 All rights reserved British Columbia Hydro and Power Authority, All rights reserved. Page 15 of 17

21 60L289 CBK-ABN 3 CBK Thursday, August 19, 2010, 10:16:15 Buf Binary Result File Scenario Contingency 1 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L289 CBK-A 2 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L289 CBK-A 3 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L289 CBK-A 4 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OuBase Sce L289 CBK-A Generator angle (degrees) 330 Bus # Bus Name ID Buf. 60 SEV 13G CRW 13G ABN 13G ELK 6G Base Scenario Time (sec) DSATools Output Analysis 9.0 Powertech Labs Inc. Copyright 2010 All rights reserved British Columbia Hydro and Power Authority, All rights reserved. Page 16 of 17

22 2L3 CBK-NTL 3 CBK Thursday, August 19, 2010, 10:24:15 Buf Binary Result File Scenario Contingency 1 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OutBase Sce L3CBK-NT 2 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OutBase Sce L3CBK-NT 3 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OutBase Sce L3CBK-NT 4 D:\Clean_Power_Call-2008\CPC_SIS_CRW_T057\T057_A051_Studies\Data (Base Cases - Dynamic Data - Ctg List - OutBase Sce L3CBK-NT Generator angle (degrees) 190 Bus # Bus Name ID Buf. 60 SEV 13G CRW 13G ABN 13G ELK 6G Base Scenario Time (sec) DSATools Output Analysis 9.0 Powertech Labs Inc. Copyright 2010 All rights reserved British Columbia Hydro and Power Authority, All rights reserved. Page 17 of 17