Wecc intertie paths. North of John Day cutplane.
- Wecc intertie paths For a path with transfer capability limits that vary seasonally, it is the maximum of all the seasonal values. Data Analyzed Actual Power Flow – Hourly samples Path Transfer Limits – Hourly samples Path Schedules – from electronic scheduling tags – OATI Hourly Firm & Non-firm Net Schedule and schedules in both path directions POR POD segments mapped to WECC paths Year – 2007 23 WECC Rated Paths Schedule data issues Missing some dynamic schedules Pacific DC Intertie (PDCI) and the two- Focus: To create change in power transfers in and around WECC Intertie Path #26 Parameter Variation. For an ATC Path whose TTC varies due to simultaneous interaction with one or more other paths, develop a nomogram describing the interaction of the paths and the resulting TTC under specified conditions. Kearny Generating Station, a former coal-fired base load power plant, now a gas-fired peaker, on the Hackensack River in New Jersey. The WECC accepted rating for Path 47 is 1048 MW non-simultaneous and 925 MW simultaneous, based on WECC Accepted Path Rating studies conducted in 1995 by EPE and the other southern New Mexico transmission owners. SWIP-North would require a new physical connection at Robinson Summit, but upon completion of SWIP-N a capacity sharing arrangement would be triggered between GBT and NV o WECC should also explore and understand the reliability implications of reverse flows on major WECC paths. Over the last five years, installed capacity of inverter-based resources (solar, wind, and battery storage) has across the NJD path. WECC is the Regional Entity responsible for compliance monitoring and enforcement. Montana Southeast 80 39. Path 26 is part of the Western Electricity Coordinating Council's links of electrical intertie paths in the western United States. Major WECC Transfer Paths in the Bulk Electric System (found on PDF page 6 of 7 as Attachment B of FAC-501-WECC-2, Transmission Maintenance) WECC Website - Major WECC Remedial Action Schemes (RAS) Event Reporting Form Template Six regional entities (2021) The Western Electricity Coordinating Council (WECC) promotes Bulk Electric System (BES) reliability for the entire Western Interconnection system. Their combined power transmission capacity is 4800 MW. Introduction 1. In addition, WECC provides an environment for the development of Reliability Standards and the coordination of the operating and planning Path 46, also called West of Colorado River, Arizona-California West-of-the-River Path (WOR), is a set of fourteen high voltage (500 kV & 230 kV) alternating-current transmission lines that are located in southeast California and Nevada up to the Colorado River. Comments. 5 Alberta-Saskatchewan Transfer Path Import Total Transfer Capability Table 4(a): Saskatchewan to Alberta Import Total Transfer Capability (MW) For Path 66 California-Oregon Intertie (COI), there was an issue with a deadband, which has been fixed. 2. [1][2][3] These links, known as WECC Intertie Paths, are not necessarily single transmission Attachment B, Major WECC Transfer Paths in the Bulk Electric System, including associated facilities has a Transmission Maintenance and Inspection Plan (TMIP); and performs and Major high-voltage transmission in the West, and WECC rated paths . Title: Transmission Maintenance 2. Description. Alturas. Year 20 Foundational Case 3 Challenges and Next Steps An example of the application of the methodology on the California-Oregon Intertie (COI), one of the largest transmission paths in the Western Interconnect; and The Path SOL paradigm pre-supposes the need for unique monitoring of all WECC paths 7. o Assess the value of inter-subregional transmission to help mitigate impacts. Report. Other WECC Other Southeast ERCOT SPP PJM NYISO MISO ISO-NE CAISO EEI 2019 EEI 2020 $0 Review WECC Antitrust Policy Vic Howell, Reliability Risk Management Director, read aloud the WECC Antitrust Policy Mr. PSEI's contractual rights are specific percentages as shown below: Іншим способом, є ширший розподіл генерувальних потужностей, завдяки використанню мережевих зв'язків, наприклад WECC Intertie Paths. The COI congestion relief of approximately 300 MW is based on the preliminary WECC path rating study of SWIP North. Index Terms-- Transfer capability, transient • WECC path ratings were used, modified as necessary to more closely represent operating experience. WECC recommends consideration by decision-makers for transmission upgrades or California Oregon Intertie (COI), identified as Path 66 by Western Electricity Coordinating Council (WECC), is a corridor of three roughly parallel 500 kV alternating current power lines To ensure the Transmission Owner of a transmission path identified in Attachment B, Major WECC Transfer Paths in the Bulk Electric System, including associated facilities has a In 2012, the SPSC developed an interactive Web-based tool to enable all parties to examine historical flows over transmission paths. Additional transmission paths to represent congestion internal to each BA • Limits on all paths and constraints reflect updates provided by the EDAM study participants • Option: implement hourly or seasonal derates on WECC paths or other constraints added to the model 75 The Pacific DC Intertie (Path 65), The North of John Day (Path 73), Hemingway-Summer Lake (Path 75), and. 1 Example - California Oregon Intertie (COI) [5] Path Ratings [5] Western interconnection 2006 congestion management study . Gain internal approval and perform study work a. Pacific DC Intertie. 2850 MW Intertie Uprate WECC Ad Hoc Review Group issued a final report<br /> No interaction with other WECC paths. WECC_Intertie_Paths; is foaf:primaryTopic of: wikipedia-en:Path_46 This content Consistent methods for determining and demonstrating the WECC Path ratings based on performance requirements in the approved NERC Reliability Standards and WECC Criteria; 5. California Oregon Intertie (COI), identified as Path 66 by Western Electricity Coordinating Council (WECC), is a corridor of three roughly parallel 500 kV alternating current power lines connecting the electric grids of Pacific DC Intertie 65 BPA/LADWP 35. • The ISO share of COI path rating was enforced in the market to ensure that schedules across Malin do not exceed the WECC-approved Path rating • No exports could flow on the Nevada-Oregon Border (NOB) intertie due to a forced outage in the non-ISO controlled AC element in California Page 5 Day-ahead capacity available and flows on Malin Legislation ensuring regional preference for power from the Intertie languished until 1963, when the Senate adopted a bill that guaranteed electricity customers in the Northwest preference to power generated at federal hydroelectric dams in the region. Potential Impacts Non-Simultaneous impacts: None identified in phase 1. The Path SOL concept undermines the distinction between reliability limitations and commercial limitations 2. 1: No Change. Other WECC Other Southeast ERCOT SPP PJM NYISO MISO ISO-NE CAISO EEI 2019 EEI 2020 $0 Evaluating the Impact of the 2017 Solar Eclipse . ** The SCIT and COI/PDCI-North of John Day Cutplane are paths that are operated in accordance with nomograms identified The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). Category: Documents >> Downloads: 2 12. Markets+ Trade Path historically been into SNM, the rating of Path 47 has been evaluated only in that direction. The interconnection adde d 15 GW of new generation capacity in 2023, mostly solar, wind, and b attery storage resources. throughout the region. The NW AC intertie flow differences in July 2019 and July 22023. 6. Rules, Standards and Tariff; ISO rules; Alberta Reliability Standards. The SWIP is expected to have a bi-directional WECC-approved path rating of approximately 2000 MW. WECC has set the Accepted Rating for south‐to‐north flows at 21 2000 MW with a maximum flow on the 500 kV westside intertie (Custer to We experienced heavy S-N flows during NW peaks in the last two winters (2022-23, and 2023-24). The intent is to proceed through the expedited WECC path rating process as outlined in the WECC Project Coordination, Path Rating and Progress Report Process. Persons who use and rely on the information contained herein do so at their own risk. PMU 1. WECC Intertie Paths WECC coordinates a number of high voltage transmission interfaces in the Western Interconnection that consist of one or more transmission circuits, called the WECC Paths. It was installed by Asea, a company based in The 345-kV Wyoming-Colorado Intertie Project has achieved Phase 2 status in the WECC planning process as announced by the Trans-Elect Development Co. SCIT, COI/PDCI are paths operated in accordance with nomograms identified in WECC’s Path Rating Catalog. 1 and Transmission Owners are not performing maintenance and inspection for the missing Facilities. Bringing Energy Forward Overview of SWIP North Benefits SWIP North improves transfer capability between CAISO, PacifiCorp, No category WECC Project Coordination Review Report Evaluating the Impact of the 2017 Solar Eclipse . CAISO, 2014 Annual Report on Market Issues & Performance, Department of Market Monitoring, transfers, and net annual flow and the utilization chart. WECC believes the data contained herein and used in its analyses is accurate and reliable. Study CALIFORNIA-OREGON INTERTIE PATH OPERATING AGREEMENT THIS First Amendment is made this _____ day of _____, 2020 and is entered into, by and between: Parties The Parties to this First Amendment to the Second Amended California-Oregon Intertie Path Operating Agreement are Pacific Gas and Electric Company WECC – 1 Remedial Action Scheme. Steady-state power flow data submitted to WECC must represent the existing BES elements plus planned transmission and generation facilities as described elsewhere in this document and as deemed appropriate by the PC. Directionally, energy on these transmission lines typically flows from The increase in DER also affected some path flows. Number. Ð+MŽl¦â ’Nâ¿ïPª˜Ô°-!’š‹ ‹š· 9ÃÑâê^UÙ-8/ . The Southern Intertie is comprised of the Northwest AC Intertie (NWACI) and the Pacific DC Intertie (PDCI). [1] Because they supply power only occasionally, the 120 example, if the longer-term Path Rating for a path is 7800 MW, but seasonally this 121 Rating increases to 8000 MW, the short-term seasonal Rating of 8000 MW governs and 122 is used to set the TTC during the season to which it applies. Because the contents of the Table would self-execute into WECC/NERC documents referencing the Table, the WECC-0149 approach would implement the removal of paths from the Table more quickly than asking NERC to address SWIP Southwest Intertie Project . wecc. WECC is requiring entities to self-certify on high-priority risks for the 2024 monitoring year. Explore the costs and benefits of potential increases to AC and DC intertie capacity with the Pacific Northwest (PNW), considering a range of options as well as assessing downstream impacts to • The WECC Path Rating process currently treats the contingency as a P7 The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). Together, they comprise the largest single electricity transmission program in the United States. Introduction . 8 <Public> The region operates a sub-control area called the Western Area Sierra Nevada, which also has ownership rights to capacity in the Pacific AC Intertie and the Los Banos-Gates Transmission Upgrade Project, known as Path 15. CAISO WECC analyzed net transfers between subregions in the West and path utilization on major WECC paths. 18 This path is currently rated at 2000 MW in a south‐to‐north direction and 3150 MW in a north‐ 21 2000 MW with a maximum flow on the 500 kV westside intertie (Custer to Ingledow) of 2000 22 MW and a maximum flow on the 230 kV eastern The utilization of and congestion on the Pacific DC Intertie (Path 65) and California-Oregon Intertie (Path 66) continue to increase under most conditions analyzed in support of the Plan. • WECC Path Rating - Phase II draft report stage 10. The Path 26 lines are located in: the San Joaquin Valley of the southern Central WECC Paths played a significant role in the planning horizon before the WECC Path Rating Process was established in 1996. The NWACI and PDCI are included in the Western Electricity Coordinating Council (WECC) path rating catalogue. 4. Perform study work for MOD-029/FAC-013 to determine rating(s) after path Pacific DC Intertie 65 35. While there is a requirement in the continent Path 27, also called the Intermountain [c] or the Southern Transmission System (STS), [4] [5] [6] is a high-voltage direct current (HVDC) electrical transmission line running from the coal-fired Intermountain Power Plant near Delta, Utah, to the Adelanto Converter Station at Adelanto, California, in the Southwestern United States. Author: Brimhall, Merrill Created Date: 12/18/2023 12:52:00 Title: WECC-0149 Page 1 of 1 Table Major WECC Transfer Paths in the Bulk Electric System Used in Standards FAC-501-WECC-1, PRC-004-WECC-1, and TOP-007-WECC-1 (Revised September 19, 2007) PATH NAME* Path Number 1. a. 37. This path is also known as PSEI's share of the Westside Northern Intertie (WNI) or Path 3 (WECC Path rating catalog). 112 Figure 5-2. • BPA has a mix of 1:1 (“rated path”) and flow-based paths (“flowgates”) − See maps on following slides − MOD-029-2a (Rated System Path Methodology) is used in the short-term 0-13 month NERC horizon for all paths • For 1:1 paths, BPA calculates ETC by assuming each 1 MW of transmission service granted has 1 MW impact to ETC relevant entities to facilities a WECC Path delisting. historically been into SNM, the rating of Path 47 has been evaluated only in that direction. models, and turbine-governor models • Two wind farms . 123 • Path Rating: The “Path Rating” priority is used to set base TTCs using either the The Intertie includes three alternating current (AC) lines and one direct current (DC) line. For purposes of WECCs new facility planning process, the COI was developed prior to WECC s 1994 adoption of its Path Rating procedure, and its Path Rating was established, known and in use prior to and intertie trading paths between entities, though leave them out here for simplicity. Alberta British Columbia 1 2. Subakti and Ms. 27 IPP DC Line 65 Pacific DC Intertie 28 Intermountain – Mona 345 kV 66 COI 29 Intermountain – Gonder 230 kV 71 South of Allston BUTTE, Mont. To avoid confusion, the DT would highlight that removal of a path, facility, or equipment from the WECC Path Rating Catalog is an entirely separate procedure from removing the same Pacific Intertie transmission routes A dual-circuit 500 kV line forming a part of the connection between Path 66 and Path 15. and a star-connected three-area system resembling the Pacific AC • BPA has a mix of 1:1 (“rated path”) and flow-based paths (“flowgates”) − See maps on following slides − MOD-029-2a (Rated System Path Methodology) is used in the short-term 0-13 month NERC horizon for all paths • For 1:1 paths, BPA calculates ETC by assuming each 1 MW of transmission service granted has 1 MW impact to ETC This path represents PSEI’s contractual rights to/from the BC-US Border across BPAT's system to PSEI's Balancing Authority Area. To avoid confusion, the DT would highlight that removal of a path, facility, or equipment from the WECC Path Rating Catalog is an entirely separate procedure from removing the same Actual paths and connection points may differ – will be determined by optimal design. ATTACHMENT E to Order R-39-17 Page 461 of 577 WECC Standard PRC-004-WECC-2 — Protection System and Remedial Action Scheme Misoperation *Mandatory BC Effective Date: October 1, 2017 2 personnel analysis, the requirements of R2. T he NJD path development in 1996 was driven by the interaction it had with the NW AC Intertie (NWACI) and Pacific DC Intertie (PDCI). Because the contents of the Table would self-execute into WECC/NERC documents referencing the Table, the WECC-0149 approach would implement the removal of paths from the Table more quickly than asking NERC to address Canonical knowledge wiki about WECC Intertie Paths. Market participants; Investors; Alberta land WECC consists of 35 electricity systems, or balancing authorities, that generally extend from the Rocky Mountains to the West Coast and include portions of Canada and Mexico. improving the capability of the California-Oregon Intertie (COI) for large-scale WECC western American power system models. 8. 29, 2011 /PRNewswire/ -- The Western Electricity Coordinating Council (WECC) has notified NorthWestern Energy (NYSE: NWE) that the Mountain States Transmission Intertie (MSTI After discussions with NERC, WECC/NERC agreed that WECC could address the procedure for changing the Table without filing a NERC SAR. The value of intertie optimization Contents across contract-path market seams and the need for intertie optimization (as brattle. HVDC lines such as Intermountain Path 27 and the Pacific DC Intertie Path 65 can be distinguished by having two transmission wires, rather than the three necessary for transmission of three phase AC power. 1 gigawatts, which is enough to serve two to three million Los Angeles households and represents almost half of the Los Angeles Department of Water and The utilization of and congestion on the Pacific DC Intertie (Path 65) and California-Oregon Intertie (Path 66) continue to increase under most conditions analyzed in support of the Plan. Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more. Chakrabortty A. Southline (Afton-Apache)—No impacts per the latest (5/8) feedback from BlackForest Partners If the path rating exceeds 1,700 MW, the capacity rights will be allocated between NV Energy and GBT according to an agreed upon formula. WECC –1 Separation Map 20 WECC‐1 has the potential to split the interconnection in half The complete remedial action scheme for loss of the California-Oregon AC Intertie encompasses detection schemes, control logic, communication paths, and tripping schemes involving utilities in The Southern Intertie is comprised of the Northwest AC Intertie (NWACI) and the Pacific DC Intertie (PDCI). A. Montana Southeast. 3. 6 gigawatts from east to west, and sends electric Path 46, also called West of Colorado River, Arizona-California West-of-the-River Path (WOR), is a set of fourteen high voltage (500 kV & 230 kV) alternating-current transmission lines that are located in southeast California and Nevada up to the Colorado River. (Note: A digital Southwest Intertie Project (SWIP) North Overview of March 2016 ITP Submissions to CAISO, NTTG & WestConnect. Width of arrow indicates magnitude of TTC on path. Western Interconnection Operations. If we use current methodology of applicable Major WECC Transfer Path, Path 66 – California-Oregon Intertie (COI) would qualify for TMIP under FAC-501-WECC. Recently, several new the most current Table titled “Major WECC Transfer Paths in the Bulk Electric System” as required by R. Path 65 Pacific DC Intertie. Resources. Lugo Victorville 500 kV 61 34. Path nomograms were modeled. [1] [2]This power transmission system has a capacity of 10. >AÉvUÈ>ßããF‰Õ ’}lÞ‹T ‘*ÆÇçôh„ƒÊ „0k+ÉY@oôV‹ ]³¿šrŒ¬ßñ[iý+ ~‚!®ü«é1Áé¸ {ÜË Welcome to the WECC Compliance page for the United States. For example, Path 66 (California . Studies to increase capacity on the Southern Intertie are performed at either BPAs ’ discretion or upon Customer request. 113 The Western Interconnection has three FERC Order 1000 Transmission Planning Regions: the California Independent System Operator (CAISO), NorthernGrid, and WestConnect. It allows for power sales, exchanges, and other transactions between the complexity of the multiple parallel paths between the . The WECC 2030 ADS is a (mainly from Paths 65 and 66) are reduced by ~26% and increased from the Southwest (Basin and Southwest) by ~74% in the High RE case. U75 – % of time flow exceeds 75% of OTC (3,600 MW for COI) Full-topology model compared to WECC planning model . Construction of the Intertie was authorized if the Senate bill became law, which it did in 1964. The line capacity is 3. WECC-0141 resulted in creation of Version 3, augmented by WECC-0149 that created Version 4. 38. COI 66 BPA/CISO 36. POR/POD-Scheduling Path Cross Reference Distribution Restriction: WECC tagging specifications require a single point to be designated as Point of Receipt/Point of Delivery (POR/POD) on NERC tags. Path 66 and Path 46 California-Oregon Intertie (COI), hourly flow, and COI+Pacific DC Intertie (PDCI), and Path 27 DC intertie, Path 65 DC intertie, Path 26 northern to southern California, Path 49 East of Colorado River, and Path 31. Input. These links, known as WECC Intertie Paths, are not Reduced order WECC Model • System Details: • Two-axis model of synchronous machines with type ST1 excitation control, PSS. Mr. A predictable path rating process that is well understood and is accepted as standard practice in WECC; Methods for determining and demonstrating ratings; A review of WECC membership; A level field for negotiations to resolve capacity allocation issues between parties; Comprehensive Progress Reports No documents are available. However, WECC disclaims any and all representations, guarantees, warranties, and liability for the information contained herein and any use thereof. Paths defined in the WECC Path Rating Catalog must be modeled to include all elements consistent with the path definition. 2030 Anchor Data Set (ADS) (WECC 2020a, 2020b). I. NWACI Frequently Asked Questions Page | 2 source of energy (Source) and the corresponding load (Sink). Accepted Ratings that have been reviewed by the WECC membership; and 6. Two of the power lines run from Malin Substation southeast of Klamath Falls, Oregon to requires intertie optimization 3. PSEI's contractual rights are specific percentages as shown below: Path 65 (the Pacific DC Intertie) also experienced several de-rates due to wildfire, creating transfer issues north to WECC Weekly Active Wildfire Totals . Transmission. SCIT** – North of John Day cutplane** * For an explanation of terms, path numbers, and definition for the paths refer to WECC’s Path Rating Catalog. Transmission expansion is a critical issue for the West North Path: A 525-kV direct current line that will run 400 miles from wind and solar facilities in northeastern New Mexico to the Four Corners region. 17 comprise a WECC Rated Path named Northwest – British Columbia and designated as Path 3. News from around WECC • PG&E adding PMUs on Pacific intertie • SCE update – Added 2 new PMUs – Rate case financing – Situation awareness center – Controls projects Intertie) is a collection of high voltage transmission lines interconnecting the Pacific West. WECC Transmission Paths Definition & Rating • All WECC Cataloged Paths are modeled, representing potentially constrained W. Reactive reserve requirements at the Lower Columbia WECC Paths—Definition Updates New path additions: • Addition of the P54 Coronado–Silver King 500 kV path Removed paths • P37 (TOT 4A) has been removed from the list of Interfaces since it has been Mountain States Intertie project • III-10. intermediate year in the near-future and a year with reasonably high renewable penetration in the WECC WECC Path 51 on April 22, 2019 • After a number of E&O meetings, the Four Corners E&O for Path 23 on June 14, 2019 • Mead-Phoenix Project (MPP) E&O was notified of WECC Path 51 on May 1, 2019 with no comments or concerns • SRP one-on-one on Path on August 9, 2019 • Adjacent utility notification letter sent out on August 15, 2019 WECC Intertie Paths; Western HVDC Link; Western Isles HVDC connection; Western Power Corridor; X. Transmission Owners of selected WECC major transmission path facilities and RAS listed in tables titled “Major WECC Transfer Paths in the Bulk Electric System” provided at Dec. 155 North 400 West | Suite 200 | Salt Lake City, Utah 84103 www. Their combined power transmission capacity is 4800 MW. ÈE>' hn„Ô›‚ü\}™½'™ L V Ùƒ'WË—/ «½ Ÿa´ö Ù†`?Pêù ó¹± q¥4N±€ ݆ZÆ ³ ÐËùü åF Ða " Y. b. Tx tie would allow access to SunZia rights in EDAM/EIM. Typically, power flows from east to west over Path 8, north to south over Paths 18 and 80, and varies on Path 83. Paths, including Unscheduled (Loop) Flow Qualified Montana to the Northwest - WECC Path 8 – East to West limit is rated at 2200 MW – Two 500 kV lines built for Colstrip with seven lower voltage elements and a remedial action scheme – Low The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America. Scope of Studies. SCIT. Other factors that affect operating conditions are: Northern California hydro generation, Unlike many other WECC Paths, the System Operating Limit (SOL) for COI is variable and is voltage stability limited. 1 gigawatts, which is enough to serve two to three million Los Angeles households and represents almost half of the Los Angeles Department of . 1 The tool compares actual flows with the portion of the 20 capacity for these ratings. Jensen will look for more duplicate paths and review for any issues on them later. Alberta Reliability Standards; Non-applicable standards; IRO-006-WECC Qualified Transfer Path Unscheduled Flow Relief. Approved/Final Path 26 is a set of three Southern California Edison (SCE) 500 kV power lines, located primarily in Los Angeles County, and extending into Kern and Ventura counties, all in California. <br /> Larry Frick<br /> PacifiCorp, Transmission Planning<br /> Lloyd Center Room 1800<br /> 1 BPA Pacific DC Intertie (PDCI) Upgrade Project WECC Path Rating Process PDCI 3220 MW North to South Phase 1 Kick-off Meeting October 23, :00-4:00. No Change: 2 #91-Increase by 250 MW #71-Increase by 250 MW. The presentation is available on the WECC website. Peaking power plants, also known as peaker plants, and occasionally just "peakers", are power plants that generally run only when there is a high demand, known as peak demand, for electricity. . The California region includes five balancing authorities, by far the largest of which is the California Independent System Operator (CAISO). brattle. SOLAR ECLIPSE REPORT No category WECC Project Coordination Review Report The initial WECC-0141 SAR was filed by Arizona Public Service (APS) in its role as Subject Matter Expert (SME) and path owner of multiple paths listed in FAC-501-WECC-2, Transmission Maintenance. The excessive loading on Path 44 initiated an intertie separation scheme at SONGS and eventually resulted in the complete blackout of San Diego and Baja. WECC reliability criteria were met. Year 20 Extreme Hot Weather Event Study When the solar and wind output and load data from the August 2020 heat event were extrapolated to 2042, there were nearly 1 5. S. BPA performs System Impact Studies, System Facilities Studies, and/or Cluster Studies Oregon Intertie (COI), also known as Path 66 in the WECC Path Rating Catalog. WECC consists of 35 electricity systems, or balancing authorities, that generally extend from the Rocky Mountains to the West Coast and include portions of Canada and Mexico. The paths that may be interact with MSTI include: • Path 8 (Montana to Northwest), • Path 17 (Borah West), • Path 18 (Montana-Idaho), This path represents PSEI’s contractual rights to/from the BC-US Border across BPAT's system to PSEI's Balancing Authority Area. TRC Technical Review Committee . Number: FAC-501-WECC-2 3. Pacific DC Intertie 65 35. WECC Table 2 means the table maintained by the WECC identifying those transfer paths monitored by the WECC regional Reliability coordinators. 5 materially differ between the two markets due to contract-path constraints. In addition, WECC provides an environment for the development of Reliability Standards and the coordination of The two major and three minor NERC Interconnections, and the nine NERC Regional Reliability Councils. This can cause counterclockwise unscheduled flow that travels westward across Idaho and south on the California-Oregon Intertie (COI). 65. Generation. Transcript. Capacity. 36. As of the date set out These paths are: • Montana to the Northwest – Path 8 • Montana to Idaho – Path 18 • Montana Southeast – Path 80. RSAW IRO-006-WECC-3 - Qualified Path Unscheduled Flow (USF) Relief: 2024-08-28: Word : RSAW PRC-004-WECC-2 8. Figure 3: Subregional Net Transfers Y20 FC_December versus 2042EC_15% NG Derate Case WECC conducts its study work in partnership with stakeholders. SWIP-North was also The SWIP is expected to have a bi-directional WECC-approved path rating of approximately 2000 MW. VRCC. PDC. 73. A duplicate path proved to be the problem. A description of any planned upgrades to the facilities that are used to import power into the electric transmission system owner’s grid including: i. RSAW IRO-006-WECC-3 - Qualified Path Unscheduled Flow (USF) Relief: 2024-08-28: Word : RSAW PRC-004-WECC-2 requires intertie optimization 3. Doug Tucker WECC Technical Staff 155 North 400 West, Suite 200 • Path 66 (CA/OR Intertie) • Path 75 (Hemingway – Summer Lake) • Path 78 (TOT2B1) • Path 79 (TOT2B2) • WECC Path Updates to 2030 Topology November 20, 2019 Tyler Butikofer Staff Engineer Process Compare the 2028 ADS PCM path branch definition to the 30HS1a1 PF path branch definition, looking for: • Change in branch topology • Difference in defined branch direction Compare the 2028 ADS PCM path ratings to the 30HS1a1 PF path ratings Used the 2019 Path WECC Intertie Paths. 5 Alberta-Saskatchewan Transfer Path Import Total Transfer Capability Table 4(a): Saskatchewan to Alberta Import Total Transfer Capability (MW) If we use current methodology of applicable Major WECC Transfer Path, Path 66 – California-Oregon Intertie (COI) would qualify for TMIP under FAC-501-WECC. WECC Intertie Paths; Path 66; Related Research Articles. However, transfer capability could<br /> be limited at times due to local loads. Selected entities will receive a notice in Align in early 2025. Descriptions of the upgrades including costs, benefits, maps, and the MW impact of the WECC Path Rating Process Concerns WECC Path Operator Task Force (POTF)* identified several issues: 1. These areas can be quite distant, such as Path 65 between The Dalles, Oregon and Los Angeles, California or short such as Path 62 between Southern California Edison's Eldorado and LADWP's McCullough substations. Since 1998 or earlier, changes to the WECC Path Rating Catalog have been governed by the WECC Project Coordination and Path Rating Processes (PRP). Studies indicate that the Project has the potential to increase the transfer capability of the Tot 3 path (Path 36) by 900 MW. As a result, a nomogram was created relating the California Oregon Intertie ( COI), PDCI, Path 75 , and NJD. WASN is located in the Balancing Authority of Northern California control area. Results were compared across the five cases to identify major changes, which Since Fall 2022, flows on Path 66 (Pacific AC Intertie) have been flowing northbound more often than southbound during heavy load hours ” How does our dispatch look in HW Case Builds? Intertie Sign Convention – exports (BPA to entity) are generally positive flow. These links, known as WECC Intertie Paths, are not Intertie (Path 66) continue to increase under most conditions analyzed in support of the Plan. North of John Day cutplane 73 BPA 37. by user. 3. With a 4,000 MW capacity, it is expected to be operational in 2028. Historically, Transfer Capability for WECC Paths was determined in the The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America. CA isn't dumb like Texas running their own • Increasing rated capacity of AC Intertie and Pacific DC Intertie. Path at the lesser of the maximum allowable contract capacity or the reliability limit as determined by R2. AC transmission line. EDAM Trade Path. A high-voltage direct current (HVDC) electric power transmission system uses Path 27, also called the Intermountain [c] or the Southern Transmission System (STS), [4] [5] [6] is a high-voltage direct current (HVDC) electrical transmission line running from the coal-fired Intermountain Power Plant near Delta, Utah, to the Adelanto Converter Station at Adelanto, California, in the Southwestern United States. Each of these entities conducts its own planning. Simultaneous impacts: Possible simultaneous path interactions will be studied in Phase 2. 2024 version of WECC's State of the Interconnection. 2 The TMIP does not include three maintenance categories identified in Attachment 1 Intertie, but the generators are paired together, sharing a step up transformer and require Reactive Current Compensation. LRCC. It is a voluntary process that invites interested subject matter experts to participate in a peer review of the system impact of proposed transmission improvement or expansion . 66. U. Alberta BC Total 5-Jun 250 12 105 367 12-Jun 39 8 106 153 19-Jun 120 6 112 238 26-Jun 178 14 91 283 3-Jul 92 38 91 221 Abstract-- The transfer capability on a transmission path is limited by constraints on acceptability, voltage security, small-signal stability and transient stability. WECC-1 RAS OBJECTIVES. 10, 2024: 840s McNeill Converter Operation (AB-SK Intertie) Update; Rules, Standards and Tariff. A way for questions about the interpretation of the process to be brought to the RAC for The TWE is designed as a bipolar 600kV overhead power line 728 miles (1,172 km) long, and can transfer a maximum power of 3,000 megawatts at ±600 kV. the measurements tied to WECC paths and 345 kV above backbone branches are assigned with tight SE weights to have BUTTE, Mont. Yunnan–Guangdong HVDC This page was last edited on 23 January 2021, at 06:06 (UTC). system. While there is a requirement in the continent The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). The Path SOL concept is extraneous and redundant in light of the revised SOL Methodology For Path 66 California-Oregon Intertie (COI), there was an issue with a deadband, which has been fixed. Montana Southeast 80 NWMT path numbers, and definition for the paths refer to WECC’s Path Rating Catalog. The proposed in-service date is 2012, depending on the interest WECC extended the load and resource forecasts to reflect 10 more years of business-as-usual growth, • The most heavily used transmission paths were in Southern California, the northern subregions of Canada and Montana, and the California-Oregon Intertie (COI). 1 gigawatts, which is enough to serve two to three million Los Angeles households and represents almost half of the Los Angeles Department of Water and A list of Facilities or associated Elements in a transmission path identified in Attachment B, Major WECC Transfer Paths in the Bulk Electric System. Specifically, Requirement R1 requires the transmission operator of a major WECC transfer path to take immediate action to return the actual power flow to within SOLs such that at no time shall the power flow exceed the SOLs for longer than 30 minutes. VRE Variable renewable energy . In 1998, BPA and US Army Corps of Engineers developed and implemented at John Day a design that combines Reactive Current and Line Drop Compensation to improve system voltage support California Oregon Intertie (COI), identified as Path 66 by Western Electricity Coordinating Council (WECC), is a corridor of three roughly parallel 500 kV alternating current power lines connecting the electric grids of Oregon and California. WECC will provide additional details at the Reliability and Security Oversight Monthly Update on December 19, 2024. • WECC Path 65: Pacific DC Intertie (PDCI) b. This unscheduled flow may cause systems in the Northwest to curtail schedules to California. These links, known as WECC Intertie Paths, are not necessarily single transmission line, For decades, WECC Paths have been a cornerstone for planning and operations in the Western Interconnection. Author: Brimhall, Merrill Created Date: 12/18/2023 12:52:00 Title: WECC-0149 Pacific DC Intertie. transfers, and net annual flow and the utilization chart. 39. Two of the power lines run from Malin Substation southeast of Klamath Falls, Oregon to 2005 SSG-WI WECC Path Rating for DPV2 and EOR 9300 Completed 2006 DOE 2007 TEPPC 2008 TEPPC 2009 2010 2011 Easrtern Nevada Transmission Intertie 500kV 2000MW 2011 - 4th Qtr NVEnergy In Siting & Permitting & Path Rating Great Basin Energy Project 500kV 1650MW 2012 - 4th Qtr LS Power In Siting & Permitting & Path Rating For example, North-South inter-area oscillation in the Western Interconnection involves generators in Canada and Pacific Northwest oscillating against generators in Desert Southwest and Southern California, and manifested in power swings on California –Oregon Intertie, British Columbia – Northwest, and Path 26. Path Analysis For all paths, prepared Chronological plots of actual, net schedule and schedules in each direction Duration curves for actual flow and schedules for 2007 Calculated congestion metrics for all paths U75, U90, U99 for flows and schedules – seasonal hours and heavy/light load hours 48 metrics calculated for each path Ranked paths by usage/congestion One of WECC's functions is coordinating high voltage intertie paths. Inverter-based Resources. Number: NOT APPLICABLE. SOLAR ECLIPSE REPORT Our examples of study are motivated by widely encountered power transfer paths in the Western Electricity Coordinating Council (WECC), namely, a two-area radial system representing the WA-MT flow, and a star-connected three-area system resembling the Pacific AC Intertie. com | 2. SWIP-North would require a new physical connection at Robinson Summit, but upon completion of SWIP-N a capacity sharing arrangement would be POR/POD-Scheduling Path Cross Reference Distribution Restriction: WECC tagging specifications require a single point to be designated as Point of Receipt/Point of Delivery (POR/POD) on NERC tags. SCIT** 40. 1 • Increasing rated capacity of AC Intertie and Pacific DC Intertie. Ties to SPP East are modeled as fixed hourly transactions. These links, known as WECC Intertie Paths, are not necessarily single transmission line, rather they are interties between various areas. Alturas 76 SPP 38. Abstract-- The transfer capability on a transmission path is limited by constraints on acceptability, voltage security, small-signal stability and transient stability. 2 PDCI/Celilo History 1970 Commercial service at ±400kV and1440MW 1977 Thermal rerate to WECC Major Transfer Paths In the Bulk Electric System . 1. Western Interconnection on several major WECC paths. Changed Intertie Constraint for BPA from MALIN500 to MALIN500_ISL due to name change in the new WECC extended the load and resource forecasts to reflect 10 more years of business-as-usual growth, • The most heavily used transmission paths were in Southern California, the northern subregions of Canada and Montana, and the California-Oregon Intertie (COI). TWE TransWest Express . The Pacific DC Intertie (also called Path 65) is an electric power transmission line that transmits electricity from the Pacific Northwest to the Los Angeles area using high voltage direct current (HVDC). This report describes model validation studies and system performance analysis for the system event that occurred on May 30 2013 between 15:58 and 16:30 Pacific Daylight Time. ** The SCIT and COI/PDCI-North of John Day Cutplane are paths that are Montana to the Northwest - WECC Path 8 – East to West limit is rated at 2200 MW – Two 500 kV lines built for Colstrip with seven lower voltage elements and a remedial action AC Intertie – COI or WECC path 66 – North to South 4800 MW – South to North 3675 MW – Three 500 kV lines and a remedial action scheme 4. Oregon Intertie) flows reversed from typical north-to-south flows to south-to-north flows more frequently in the high DER cases than in the 2030 ADS PCM V2. WECC paths for 2009 data historic flow and schedule analysis. captured existing contract- path transmission rights, major trading hubs, block trading, CAISO intertie trades, hourly BA-to-BA trades, and wheeling charges where applicable. 1 мова Ці зв’язки, відомі як міжвузлові шляхи WECC, не обов’язково є однією лінією These links, known as WECC Intertie Paths, are not necessarily single transmission line, rather they are interties between various areas. views. on 15 сентября 2016. Text is available under the Welcome to the WECC Compliance page for the United States. WECC Status. WECC’s footprint extends from Canada to Mexico and , includes the provinces of Alberta and British Columbia, the northern portion of Baja California, Mexico, and all or Figure 1: A 5-area dynamic equivalent model for the WECC power system - "Wide-Area Monitoring and Control of WECC Transfer Paths Using Real-Time Digital Simulations" Building a dynamic electro‐mechanical model for the Pacific AC intertie using distributed synchrophasor measurements. North of John Day cutplane. Title: Major. ** The SCIT and COI/PDCI-North of John Day Cutplane are paths that are Operations Data (AC Intertie Path data), Form EIA-930 Interchange <Public> Energy Emergency Alert Trends in the West 5 3 5 8 26 7 4 11 10 10 15 14 6 5 8 2 1 4 4 16 14 3 15 9 14 WECC 2024 summer proposed capacity additions = 17 GW. In the last 15 years, for example, the Northwest has sent more electricity to the Southwest The utilization of and congestion on the Pacific DC Intertie (Path 65) and California-Oregon Intertie (Path 66) continue to increase under most conditions analyzed in support of the Plan. WECC Transfer Paths in the Bulk Electric System (Table)—Path List Revision Process (Revision Process) 2. Purpose: To ensure the Transmission Owner of a transmission path identified in Attachment B, Major WECC Transfer Paths in the Bulk Electric System, including associated facilities has a Transmission 2005 SSG-WI WECC Path Rating for DPV2 and EOR 9300 Completed 2006 DOE 2007 TEPPC 2008 TEPPC 2009 2010 2011 Easrtern Nevada Transmission Intertie 500kV 2000MW 2011 - 4th Qtr NVEnergy In Siting & Permitting & Path Rating Great Basin Energy Project 500kV 1650MW 2012 - 4th Qtr LS Power In Siting & Permitting & Path Rating 5. The report identified the following failures in “operations planning and real-time situational awareness:” Failure of WECC, affected transmission operators, and balancing authorities - WECC Regional Criteria - California ISO Planning Standards - Applicable standards in other jurisdictions 3. xml ¢Å ( ÄWÉnÛ0 ½ è? ¼ tAQXΡ ÐK . 29, 2011 /PRNewswire/ -- The Western Electricity Coordinating Council (WECC) has notified NorthWestern Energy (NYSE: NWE) that the Mountain States Transmission Intertie (MSTI • Steady-state power flow data submitted to WECC must represent the existing BES elements plus planned transmission and generation facilities as described elsewhere in this document and as deemed appropriate by the PC. Path 65 WECC Paths played a significant role in the planning horizon before the WECC Path Rating Process was established in 1996. These interfaces include transmission lines WECC Intertie Paths Цю сторінку востаннє відредаговано о 09:45, 17 липня 2024. The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America. Brownlee East 55 33. , Sept. Reserved . 76. Download Alberta-WECC Intertie Restoration and System Planning Initiative May 7, 2013. Larry Paine – LADWP Jon Crook - SMUD. 2. The process may be replaced when the WECC Path Rating Procedure is updated to include a detailed delisting process. COI. More paths had flow reversals in high DER cases compared to the 2030 ADS PCM V2. 53 • Montana to Alberta— Path 83 . Salazar. North of John Day cutplane 73 37. Alberta-WECC Intertie Restoration and System Planning Initiative May 7, 2013. Index Terms-- Transfer capability, transient FAC-501-WECC-2 – Transmission Maintenance A. WECC –1 Separation Map 20 WECC‐1 has the potential to split the interconnection in half The complete remedial action scheme for loss of the California-Oregon AC Intertie encompasses detection schemes, control logic, communication paths, and tripping schemes involving utilities in Public COURSE AGENDA 9:00-9:10 Introduction, Logistics, Course Overview 9:10-10:30 Western Electricity Market: Overview and Description 10:30-10:45 Break System and Remedial Action Scheme (RAS) Misoperations on Transmission Paths and RAS defined in section 4 are analyzed and/or mitigated. WECC’s Headquarters are located in Salt Lake City Utah. 1. MW net readings found on this page are derived from actual transducer line flows. Generation: Load. com | 3. It was installed by Asea, a company based in WECC is requiring entities to self-certify on high-priority risks for the 2024 monitoring year. on U. The RAC and the • Post Chelsea's BPA path flows o Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file 5. Recently, several new WECC assesses system performance under a range of future scenarios that may present reliability risks. The Western Interconnection is a wide area synchronous grid and one of the two major alternating current (AC) power grids in the Pacific DC Intertie 65 35. Here, you'll find the most current guidance, documents, processes, contact information, and answers to frequently asked questions related to WECC oversight activities. Xiangjiaba–Shanghai HVDC system; Xingu-Estreito HVDC transmission line; Xingu-Rio HVDC transmission line; Y. Explore the costs and benefits of potential increases to AC and DC intertie capacity with the Pacific Northwest (PNW), considering a range of options as well as assessing downstream impacts to • The WECC Path Rating process currently treats the contingency as a P7 They also import huge amounts of power from outside the state and are part of WECC which covers a large chunk of the country and parts of Canada Individual parts of that like Pacific DC Intertie are used to move large amounts of wind power from the Columbia River Gorge to Southern California. Minimize Real-Time Curtailments • May 18-22, 2010 The Western Electricity Coordinating Council (WECC) promotes Bulk Electric System (BES) reliability for the entire Western Interconnection system. Текст доступний на PK !Ce®6( B É [Content_Types]. Internally, identify WECC Path for delisting. The electric power transmission grid of the contiguous United States consists of 120,000 miles (190,000 km) of lines operated by 500 companies. WECC recommends consideration by decision-makers for transmission upgrades or other mitigating measures that relieve congestion on Paths 65 and 66. Changed Intertie Constraint for BPA from MALIN500 to MALIN500_ISL due to name change in the new 4. The AESO takes Path 83 (Montana-Alberta intertie 240/230 kV line) out of service for any outage in British Columbia that causes the interconnected electric system to be islanded from the WECC. R2. North of John Day cutplane of the Southwest Intertie Project (SWIP) to the California ISO and NorthernGrid. Loomis presented the summer 2023 reversed California-Oregon Intertie (COI) flow. • Paths defined in the WECC Path Rating Catalog must be modeled to include all elements consistent with the path definition. WECC phasor network (WAMS) BCTC. 4 Alberta-Montana Transfer Path Export Total Transfer Capability Determinations WECC through study results or actual operation, whichever is greater. 3 #91-Decrease by 250 MW #71-Decrease by 500 MW: 4 #8881-Increase by 250 MW #69-Increase by 250 MW. Path SOLs often do not take into consideration real-time tools and information 3. Visit SN’s OASIS site. SunZia rights would only be available hurdle free in EDAM. The proposed project is an approximately 50-mile, 500-kV transmission line interconnecting the California Oregon Intertie Project (COTP) to Western’s Central Valley Project (CVP Chair, WECC Reliability Assessment Committee Studies Subcommittee Mr. Year 20 Foundational Case 3 Challenges and Next Steps This report describes model validation studies and system performance analysis for the system event that occurred on May 30 2013 between 15:58 and 16:30 Pacific Daylight Time. At the end of this class the learner will be able to answer and explain these questions: Why is the WECC-1 RAS necessary? What are the components of the WECC-1 RAS? Slideshow 3753211 by velma California Oregon Intertie (COI), identified as Path 66 by Western Electricity Coordinating Council (WECC), is a corridor of three roughly parallel 500 kV alternating current power lines connecting the electric grids of Oregon and California. COI 66 36. Alberta-WECC Intertie Restoration and System Planning After discussions with NERC, WECC/NERC agreed that WECC could address the procedure for changing the Table without filing a NERC SAR. If entities in the WECC are concerned about contract-path limitations reducing customer benefits in the Markets+ will implement intertie trading at all points along its seam with neighboring markets and utilities while, under EDAM, intertie trading is only activated System Stability Planning. 2 Study Horizon and Years • Path 65 (Pacific DC Intertie) • Path 66 (COI) • Path 15 • Path 26 • Other areas or transmission elements within California or PNW that could be impacted by the transfer capability increase. Borah West (Path 17). California enjoys the greatest benefit from the Intertie. 5. 80. 4. The report identified the following failures in “operations planning and real-time situational awareness:” Failure of WECC, affected transmission operators, and balancing authorities Ai: i th area Pi: Pilot bus for the i th area ASGi: Aggregated synchronous generator representing area Ai Ei∠δi: Voltage Phasor of the internal EMF of ASGi Vi∠θi: Voltage Phasor at pilot bus Pi xi: Internal Thevenin reactance of ASGi rij : Resistance of transmission line between Pi and Pj xij : Reactance of transmission line between Pi and Pj pij : Active power flow between buses Pi and The pumped storage plant in Ludington, Michigan uses more power to pump the water uphill to its reservoir than it generates flowing downhill through the turbines. Alturas 76 38. org <Limited-Disclosure> Table Revision Process . Applicability 4. This Project Coordination, Path Rating and Progress Report Processes address the following purposes: Provide procedures for WECC members and others to report on planned projects and to work together to expand the Western Interconnection's capacity according to member and stakeholder needs. 35. Rolling 30 Days and The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America. Montana Southeast The SCIT and COI/PDCI-North of John Day Cutplane are paths that are operated in accordance with nomograms identified in WECC’s Path Rating Catalog. oswd adxqlkn vzkd eetkfb jqxc ggds uiv qqeic zbt zvprkgq
