Vic HowellManager, Operations Engineering Support

2016 SOL Methodology Revision Stakeholder UpdateNovember 29, 2016

• Recap accomplishments to date• Provide a high level overview of draft SOL

Methodology 8.0 posted on 11/23 for stakeholder review

• Review key changes• Review revised project timeline• Understand how to provide comments• Discuss training plan

Webinar Objectives

THANK YOU, Small Team!!

TOP NameArizona Public Service Company Luis LeonBonneville Power Administration Daniel KuraspedianiBritish Columbia Hydro & Power Authority Guihua WangCalifornia Independent System Operator Dede SubaktiLos Angeles Department of Water and Power Vin VongvaravipatrPacifiCorp William RuthruffPublic Service Company of Colorado Robert JohnsonPublic Utility District No. 2 of Grant County, Washington Ken CheSacramento Municipal Utility District Wei ShaoSalt River Project Agricultural Improvement and Power District Jose SilvaSan Diego Gas & Electric Anita HoyosTri-State Generation and Transmission Igor KormazTucson Electric Power Eric RaatzWestern Area Power Administration - Rocky Mountain Region Yishan LiSmartWires Chifong Thomas

• Three main objectives with revision:o Incorporate NERC SOL White Paper Conceptso Implement POTF recommendationo Align with the concepts and principles in the new

TOP/IRO Reliability Standards• Conceptual Modifications to the SOL

Methodology document sent to stakeholders on 7/29

Recap

• Posted doc on 9/3/2016 for stakeholder review –DRAFT SOL Methodology Revision – First Informational Release

• TOPs instructed to go ahead and begin preparing for these changes

• Contains sections of the future revised SOL Methodology:o General changes (POTF Recommendation, alignment with NERC

SOL Whitepaper and new TOP/IRO standards)o Multiple Contingencies in operationso Allowed uses of load-shed and non-load-shed schemeso System stressing methodology (WECC OC-approved doc from

POITF)

Recap (continued)

• Posted DRAFT SOL Methodology version 8.0 on 11/23/2016 for stakeholder comment

• Sections added to the first informational releaseo Coordination Responsibilitieso SOLs Used in the Operations Horizon – Facility

Ratings, System Voltage Limits, Stability Limitations

o Instability, Cascading, uncontrolled separation, and IROLs

DRAFT Revised SOL Methodology

• IROL Establishment• IROL TV in the Peak RC Area• IROLs established by the PC and TP

consistent with the PC’s SOL Methodology for the planning horizon

• Other items retained from current version 7.1

DRAFT Revised SOL Methodology (continued)

• Facility Ratings used in Operations Horizon determined by TOP

• More specifics on which Facility Ratings Peak will use

• Facility Ratings < 15 min used only for extenuating circumstances and when verified and acceptable by TOP and RC

• Requirements for TOPs that use dynamic Facility Ratings

Key Changes – Facility Ratings

• System Voltage Limits used in Operations Horizon determined by TOP

• Specifies where System Voltage Limits need to exist

• Requires normal & emergency high & low limits• Specific requirements for certain System Voltage

Limits• Contains a mechanism to ensure TOP submitted

System Voltage Limits provide for reliable operations

Key Changes – System Voltage Limits

• Acceptable methods:o Use real-time tools to assess instabilityo Use predetermined stability limit values

• Transient and post-transient analysis methodologyo Baseline requirements to facilitate consistency

• Transient performance requirements table

Key Changes – Stability Limitations

• 1000 MW threshold goes away• Description of instability, Cascading, and

uncontrolled separation for IROL establishment• Distinguishes an IROL from a “condition”

o An IROL is a limit – not a conditiono IROLs are identified one or more days prior to real-time;

however, the IROL value can be calculated in real-timeo Unanticipated N-1 and credible N-2 insecure states that

may occur in real-time operations are addressed outside of IROLs – but, like IROLs, they must be mitigated within 30 minutes

Key Changes – IROLs

• Distinguishes between long-term IROLs and planned outage condition IROLs

• Long-term IROLs applicable for:o Single P1 Contingencieso Credible Multiple Contingencieso N-1-1 and N-1-2 operations starting with an “all lines in

service” case(s)• Planned outage condition IROLs applicable for:

o Single P1 Contingencieso Credible Multiple Contingencies

Key Changes – IROLs (continued)

• Process for identifying planned outage condition IROLs

• Description, application, purpose, and rationale for N-1-1 and N-1-2 IROLs

• Detailed process for identifying N-1-1 and N-1-2 IROLs, examples provided

• IROLs and Risk Management for Localized, Contained Instability Impacts

• Process for determining acceptable levels of risk for IROL determination

Key Changes – IROLs (continued)

• Transient stability IROLs• Voltage Stability IROLs• Facility Rating-Based IROLs, example

provided• Short IROL TV section• How Peak addresses IROLs identified by

PCs and TPs

Key Changes – IROLs (continued)

• TOPs are expected to continue with the “RC Seasonal SOL Coordination Process” until a replacement process is developed and implemented

• Some “RC Instructions” are noted as currently under development

• Guideline for Establishing System Voltage Limitscurrently under development

• Peak developing contingency plans if FERC doesn’t agree to retire TOP-007-WECC-1a

Other Issues

• DRAFT SOL Methodology posted for TOP stakeholder comment – 11/23/2016

• TOP stakeholder comments due –12/16/2016 (~3 weeks)

• Peak to publish final revised SOL Methodology – 1/13/2017

• April 1, 2017 – SOL Methodology effective date

Project Timeline

• Comments from TOP stakeholders only• Comments provided via Peakrc.com website

only – do not send red-lines or marked up versions with Microsoft Word comments added

• Please indicate the name of the TOP represented

• Peak will respond to all comments• Link to comment area on right-hand side of

Peakrc.com main page under “Comments Invited” section

TOP Stakeholder Comments

How to Provide Comments

How to Provide Comments

• Use the “Reply” button to provide comments• All comments are visible

• Peak to provide combined training for:o The revised SOL Methodology (8-hours)o The IRO-017 Outage Coordination Process (8-hours)

• Training Dates and Locations:o 1/17–1/19 at PacifiCorp in Portlando 1/24–1/26 at Xcel in downtown Denvero 1/31–2/2 at SDG&E in San Diegoo Webex may be provided, but for listen-only

• Starts at 1:00 on Tues, ends at noon on Thurs• CEHs will be provided (must be physically present)• Further communication will follow

SOL Methodology Training

• rc.sol.help@peakrc.com will be used as the primary communication method for SOL Methodology related issues

• For further information, please contact Vic Howell by email (vhowell@peakrc.com) or phone (970-613-3537)

Contact Info