SPP THREE-PHASE INTERCONNECTION STUDY PROCESS three phase...2009/10 Fast-track process Cluster Study...
Transcript of SPP THREE-PHASE INTERCONNECTION STUDY PROCESS three phase...2009/10 Fast-track process Cluster Study...
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SPP THREE-PHASE INTERCONNECTION STUDY PROCESSEDUCATION SESSION
19 SEPTEMBER 2019
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WELCOME TO SPPJAY CASPARY
DIRECTOR - R, D & TARIFF SERVICES
3
MEET THE STAFF OF SPP GENERATOR INTERCONNECTION
Lanny Nickell
Senior Vice President
of Engineering
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2019 STAFF ADDITIONS TO TARIFF STUDIES
Six additional staff to be added in 2019
• Generation Interconnection Engineers
• (2) Engineers
• (1) Principal Engineer
• Tariff Services Analysts
• (3) Analysts
• Additional head count planned for 2020
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GENERATOR INTERCONNECTION
Jon Langford
Sr. Engineer
Richard Robertson
Engineer I
Spencer Magby
Engineer I
William Holden
Sr. Engineer
Steve Purdy, Manager
Juliano Freitas, Transition Manager
Alyssa Anderson
Engineer II
Anthony Cook
Sr. Engineer
Caitlin Shank
Engineer II
Hannah Jones
Engineer II
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TARIFF SERVICES
Andy Barton
Planning Analyst II
Bryce Bowie
Sr. Planning Analyst
Callen Boris
Planning Analyst II
Christi Pinkerton
Planning Analyst II
Deni Golden
Planning Analyst II
HweePing Won
Planning Analyst II
Katherine Rogers
Planning Analyst III
Mitchell Jackson
Sr. Planning Analyst
Vanessa Johnson
Planning Analyst II
Brad Finkbeiner, Supervisor
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SPP ANTITRUST GUIDELINES
It is SPP policy and practice to obey the antitrust laws and
to avoid all conduct that unreasonably restrains
competition. This policy requires the avoidance of any
conduct that violates, or which might appear to violate,
the antitrust laws. Among other things, the antitrust laws
forbid any agreement between or among competitors
regarding prices, availability of service, product design,
terms of sale, division of markets, allocation of customers
or any other activity that unreasonably restrains
competition.
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PROTOCOL FOR EDUCATION SESSION
• Tariff supersedes any Education Session discrepancies
• This is an Education Session for the Revised GIP
• Policy Matters addressed separately (Email / RMS)
• No discussion of specific Interconnection Requests
• Unable to discuss pending FERC Orders or Tariff Changes
• Covering relevant sections of Revised Attachment V, GIP
• End of Session Q&A
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STATE OF THEGI QUEUEANTHONY COOK
SR. GI ENGINEER
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STATE OF SPP GI QUEUE
• GI Queue
• Historical View
• 3-Phase View
• Impact of Prior GI Studies
• Current Status
• Timeline of Studies Completing
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HISTORICAL VERSUS 3-PHASE
• Historical GIP Requests (pre July 1, 2019 GIP)
• DISIS-2012-001 thru DISIS-2016-002
• 3-Phase GIP Requests (July 1, 2019 GIP)
• DISIS-2017-001 and forward
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GI QUEUE
3-Phase View
Initial Capacity Amounts:
• Conventional Fuel Types
• Renewable Fuel Types
• All Fuels Types
Historical View
Initial Capacity Amounts:
• Conventional Fuel Types
• Renewable Fuel Types
• All Fuels Types
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IMPACT OF PRIOR GI STUDIES
• Requests Withdrawing/Terminating/Modifying
• Count of Re-Studies Performed
• Initial Capacity vs. Current Capacity
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Impacts of Changing Requests
Withdrawing/Terminating/Modifying of requests result in changing modeling assumptions creating uncertainty for GI Customers.
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RE-STUDY DUE TO REQUEST CHANGES DETERMINE:
•Whether assigned Network Upgrades
are still needed.
•Cost allocation for Upgrades to
remaining GI Customers.
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EFFECTS ON EQUALLY QUEUED REQUESTS
Withdrawing/Terminating/Modifying may:
• Trigger a need to re-study if:
• Request(s) were assigned shared Network Upgrades
How GI Customers may be affected:
• For requests remaining:
• Increase in costs allocated if shared Network Upgrade is still required.
• Decrease in costs allocated if shared Network Upgrade is no longer required.
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EFFECTS ON LOWER QUEUED REQUESTS
Withdrawing/Terminating/Modifying may:
Trigger a need to re-study if:
• Request(s) were assigned Network Upgrades
• Newly available capacity may remove Upgrades assigned to lower queues
How GI Customers may be affected:
• Changes in costs allocated if Upgrades no longer required for Prior Queue are deemed required for lower queue.
• Decrease in costs allocated if newly available capacity removes need for assigned Upgrade(s).
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TIMELINE OF QUEUES COMPLETING STUDY PROCESS
DISIS Study Queue START STOP Jan
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DISIS-2017-001 1/15/2020 2/5/2021
Phase 1 1/15/2020 5/5/2020
Phase 2 5/5/2020 9/23/2020
Phase 3 9/23/2020 2/5/2021
DISIS-2017-002 10/30/2020 11/21/2021
Phase 1 10/30/2020 2/18/2021
Phase 2 2/18/2021 7/9/2021
Phase 3 7/9/2021 11/21/2021
DISIS-2018-001 8/15/2021 9/4/2022
Phase 1 8/15/2021 12/3/2021
Phase 2 12/3/2021 4/22/2022
Phase 3 4/22/2022 9/4/2022
DISIS-2018-002 5/29/2022 6/18/2023
Phase 1 5/29/2022 9/16/2022
Phase 2 9/16/2022 2/3/2023
Phase 3 2/3/2023 6/18/2023
DISIS-2019-001 3/12/2023 3/31/2024
Phase 1 3/12/2023 6/30/2023
Phase 2 6/30/2023 11/17/2023
Phase 3 11/17/2023 3/31/2024
DISIS-2020 12/24/2023 1/12/2025
Phase 1 12/24/2023 4/12/2024
Phase 2 4/12/2024 8/30/2024
Phase 3 8/30/2024 1/12/2025
2022 2023 2024 20252020 2021
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OVERVIEW THREE-PHASEGI STUDY PROCESSBRAD FINKBEINERSUPERVISOR, ENGINEERING SUPPORT
AND TARIFF SERVICES
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PREVIOUS QUEUE REFORM MEASURES
2009
• 255 requests
• 57,000 MW
• 3,125 MW wind
in-service
• 17 requests /
3,544 MW on
suspension
2013
• 64 requests
• 9,601 MW
• 8,121 MW wind
in-service
• 9 requests / 846
MW on
suspension
2017
• 241 requests
• 37,600 MW
• 14,000 MW wind
in-service
• 12 requests /
2,082 MW on
suspension
2009/10 Fast-track process
Cluster Study Implementation
“First-ready, First-served”
Increased milestones required to enter DISIS
Financial milestone at execution of GIA
Addition of a performance obligation in a GIA
2013 ER10-681: Consolidation of SGIP and LGIP
Supplemental DISIS Stand Alone analysis
Added DISIS Security Deposit
Suspension reduced from 36 mo. to 18 mo.
Suspension security terms and conditions
Increased milestones to enter IFS
Increased milestone at execution of GIA
Limitations on extensions of in-service dates
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NOTICE OF PROPOSED RULE MAKING RM17-8-000
• FERC issues NOPR 15 December 2016
• AWEA Petition (2015) and FERC Technical Conference (2016)
• Goal to remedy potential shortcomings in existing
interconnection processes
• FERC’s Concerns
• Queue Transparency for better decision making
• Reduce cost uncertainty
• Timely development of new generation
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GI IMPROVEMENT TASK FORCE (GIITF)
• GIITF Kick Off 3/17/2017
• Collaboration among 60+ across the SPP footprint
• Chaired by Al Tamimi (Sunflower)
• Staff Secretary, Steve Purdy (SPP)
• Three-Phase Process Approval Path
• GIITF Approved 3/29/2018 (Whitepaper)
• MOPC approved 4/10/2018
• Vetted Through RTWG, MOPC and SPP Board 10/2018
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FERC TEMPERAMENT
”frustration…[over] repeated restudies and prolonged
queue times resulting from the withdrawal of higher-
queued interconnection requests.”
Cluster Studies Days Cluster Studies Days Cluster Studies Days
ICS-2008-001 7 1601 DISIS-2012-001 5 734 DISIS-2015-001 5 1210
DISIS-2009-001 7 1387 DISIS-2012-002 7 609 DISIS-2015-002 9* 1050+
DISIS-2010-001 9 1207 DISIS-2013-001 5 449 DISIS-2016-001 5* 790+
DISIS-2010-002 7 1030 DISIS-2013-002 4 265 DISIS-2016-002 2* 372+
DISIS-2011-001 9 1603 DISIS-2014-001 3 92
DISIS-2011-002 7 1379 DISIS-2014-002 7 406
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13-1 13-2 14-1 14-2 15-1 15-2 16-1 16-2 17-1 17-2 18-1 18-2 19-1
All Other 416 983 850 659 435 65 332 20 0 0 2,304 1,334 2,837
Wind & Solar 1,213 1,231 1,361 6,396 4,931 9,963 10,975 15,502 15,631 28,856 9,117 10,927 5,489
Commercial Operation 481 1,114 94 1,839 1,138 1,570 99
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
MW
Impact Study
Annual GI Requests By Year
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74
101
177
241
132
80*
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NEW TARIFF IN TOWN1 JULY 2019
SPP TARIFF ATTACHMENT V “GENERATOR
INTERCONNECTION PROCEDURES” AND GIA
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SPP TARIFF ATTACHMENT V, 1 JULY 2019
• Sixth Revised Volume No. 1
• 485 pages
• Planned Revision Request Changes 2020
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HIGHLIGHTS OF CHANGES
• No more Feasibility Studies and Preliminary Interconnection
System Impact Studies (PISIS)
• Combined Application Deposit and Study Deposits (8.2.b)
• Consolidated Study Agreement Form; Appendix 3 / A, B, C
• Clarity regarding Modification requests (4.4)
• Simplified Study Life Cycle (Three-phase with exit ramps)
• New Financial Security Deposit requirements
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OLD GIP PROCESS (PRIOR 1 JULY 2019)
Feasibility Study and Preliminary Interconnection System Impact Study (PISIS) are OPTIONAL study phases. DISIS and Facilities Studies are MANDATORY.
Feasibility Cluster
# 1
Dec 1 to Feb 28
Feasibility Cluster
# 2
Mar 1 to May 31
Feasibility Cluster
# 3
Jun 1 to Aug 31
Feasibility Cluster
# 4
Sept 1 to Nov 30
PISIS/DISIS Cluster # 1
Dec 1 to May 30
PISIS/DISIS Cluster # 2
Jun 1 to Nov 30
• Four Feasibility Study Cluster Windows
• Two Interconnection Impact Study Cluster Windows
o Preliminary (PISIS) and Definitive (DISIS)
One Calendar Year
Interconnection Facilities Study and Generator Interconnection Agreements
Jan 1 to Dec 31
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Feasibility PISIS DISIS Facilities
GIA
Negotiation
GIA
Entry Exit
Limited
Operation
Study
Fast-Track
Process
Interim GIA
Old SPP GI Study Process(simplified)
Re-studies• Turbine Change
• Material
Modification
• Suspension
DISIS
re-study
option
Mandatory
Process
Optional
Process
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OVERVIEW OF THEREVISED GIPBRAD FINKBEINERSUPERVISOR, ENGINEERING SUPPORT
AND TARIFF SERVICES
58
DISIS Phase 2Stability and
Short-Circuit
Entry
Withdraw
New SPP GI Study Process (Three-Phase)
DISIS Phase 1Steady-State
Analysis
Facilities
Study
Study Deposit*
and Financial
Security 1†
Financial
Security 2 †
Financial
Security 3 †
SPP
Generator
Interconnection
Agreement
Decision
Point 1
Decision
Point 2
Decision
Point 3
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TRANSITIONING REQUESTS
• Section 5.1 Transition Procedures
• Any GIR that has not executed an FSA, GIA or filed unexecuted
by 1 July 2019 is subject to new GIP (5.1.1 and 5.1.2)
• Any active FBS or PISIS prior to 1 July 2019 will transition to new
GIP upon completion of the study (5.1.1.1)
• DISIS-2017-001 will transition upon posting of first study report (5.1.1.2)
• Subsequent DISIS Clusters, with no GIRS having executed an
FSA, will transition (20) Business Days after posting of DISIS
Phase Two results of immediately higher DISIS Queue (5.1.1.3)
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ESTIMATED TRANSITION DATES (5.1.1.2 & 5.1.1.3)
If your DISIS is Dependent on DISIS Phase 2 Posting Date + 20 BD
DISIS-2017-002 DISIS-2017-001 9/1/2020 +20 Biz Days
DISIS-2018-001 DISIS-2017-002 6/17/2021 +20 Biz Days
DISIS-2018-002 DISIS-2018-001 4/2/2022 +20 Biz Days
DISIS-2019-001 DISIS-2018-002 11/8/2022 +20 Biz Days
*These dates are subject to change based on weekly evaluation
of GI Engineering Study workflow.
If your DISIS is DISIS Phase 1 Posting
DISIS-2017-001 4/14/2020
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CHANGE IN CLUSTER WINDOW CYCLES (5.1.3)
DISIS-2020-001 (would have been DISIS-2019-002)
• Active during the 1 July 2019 Revision Date
• Window is extended to (11) Calendar Months
• DISIS-2020-001 Closes 30 April 2020
• DISIS Review Period, follows, for (1) Calendar Month
(11) Month + (1) Month vs (5) Month + (1) Month Window
• Until DISIS-2019-001 Phase One Study is posted
• DISIS Cluster open at that time will resume (5) Month + (1)
Month Cycle
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DEFINITIVE INTERCONNECTION SYSTEM IMPACT STUDY (DISIS) CLUSTER
• Section 8 of GIP covers Definitive Planning Phase
• One form – Appendix 3 with Attachments A, B and C
“Generator Interconnection Study Agreement”
• Combined Application and Study Deposits
• Financial Security One increased to $2,000MW
• DISIS Review Period (1) Calendar Month
• DISIS Phases vs Decision Points
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DISIS STUDY DEPOSIT SCHEDULE (8.2.B.1-4)
• $25,000 deposit for requests ≤ 2 MW
• $35,000 deposit for requests >2 MW and ≤ 20 MW
• $50,000 deposit for requests >20 MW and ≤ 75 MW
• $90,000 deposit for requests ≥ 75 MW
Study Cost Allocation Methodology (4.2.2)
• Per DISIS Phase 1 & 2
• 50% pro rata/count and 50% pro rata MW requests
• Facilities Studies and Specials Studies carry independent costs
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DISIS PHASE ONE STUDY (8.4.2 & 8.5)
• Consists of power flow analysis and short circuit ratio
• Provide list of required facilities with +/- 30% costs
• Limited Operations Availability (8.4.3)
• Interconnection Facilities Analysis (8.4.4)
• Results no later than (90) Calendar Days after DISIS Review
Period
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DISIS DECISION POINT ONE (8.5.1)
• Starts next Business Day after posting DISIS Phase One Study
• (15) Business Days in duration (Review, Discuss, Respond)
• Modification permitted per Section 4.4.1 (10 BD after DP1)
• Before DP1 ends, must provide:
• Written indication to Withdraw or Proceed to DISIS Phase Two
• Written indication to all changes permitted by Section 8.5.1
• Financial Security Two (10% of Cost Factor Less Previous Securities or
$2,000/MW going into DISIS Phase Two)
If no response before end of DP1, request is deemed Withdrawn
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DISIS PHASE TWO STUDY (8.4.2 & 8.5)
• Consists of short circuit analysis and stability analysis, and
any refresh of power flow as a result of withdrawn requests
• Provide list of required facilities with +/- 30% costs (8.4.2)
• Limited Operations Availability (8.4.3)
• Results no later than (120) Calendar Days after end of
Decision Point One (DP1) (8.5)
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DISIS DECISION POINT TWO (8.5.2)
• Starts next Business Day after posting DISIS Phase Two Study
• (15) Business Days in duration (Review, Discuss, Respond)
• Modification permitted per Section 4.4.1 (5 BD after DP2)
• Before DP2 ends, must provide:
• Written indication to Withdraw or Proceed to Facilities Study
• Written indication to reduce capacity per Section 4.4.1
• Written indication to extend COD or proceed under Limited Operation
• Financial Security Three (20% of Total Upgrades Less Previous Securities before going into Facilities Study)
If no response before end of DP2, request is deemed Withdrawn
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FACILITIES STUDY PHASE THREE (8.11)
• Must satisfy all requirements of Section 8.5.2 (DP2)
• Must have Financial Security Three in place (DP2)
• DISIS Study Phase One and Phase Two MAY BE refreshed to
accommodate Withdrawn requests
• Transmission Owner has (90) Calendar Days
• Transmission Provider provides Draft no later than (135)
Calendar Days from close of DP2
• Facilities Costs Estimates +/- 20% contained in report
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FACILITIES STUDY DECISION POINT THREE (8.11.C)
• DP3 will commence the next Business Day after posting of draft Facility Study Report
• DP3 is (15) Business Days in duration
• Interconnection Customer must tender comments on Draft Facilities Study within (30) Calendar Days of receipt of report.
• Transmission Provider posts Final within (15) Business Days of comments or promptly on statement of ‘no comments’ (8.11.c)
• Simultaneously with posting of Final Facility Study, Transmission Provider issues draft Generation Interconnection Agreement (GIA)
• GIA Negotiation Period is (60) Calendar Days
GIA Negotiations of Appendices may begin as early as fulfillment of DP2 (11.2)
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LET’S TALK ABOUT SCOPING CALLS
• Under Section 8.6 the provision is made to ‘meet’ (scoping
call) with SPP.
• Reasonable Effort made during DP1 and DP2
• If mutually agreed, can be other date
• DP Days = 15 Business Days X 8 hrs = 120 hrs
• DISIS-2017 Clusters 100 to 120 GIRS
We’re gonna need your help !
73
FINANCIAL SECURITY REFUND ELIGIBILITY (8.14)
• Allocated Costs include costs of Network Upgrades, Shared
Network Upgrades, Transmission Owner Interconnection
Facilities and any costs of upgrades required to mitigate
impacts of Affected Systems
• Financial Security One is refundable if Interconnection
Request is Withdrawn prior to the end of DP1, otherwise
subject to forfeiture (8.14.b)
• Financial Security Two and Financial Security Three are
refundable if Interconnection Request is Withdrawn prior to
the end of DP2, otherwise subject to forfeiture (8.14.c)
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RISKS OF SECURITY FORFEITURE (8.14) PART I
Financial Security One, are at risk, if withdrawn after DP1 but
prior to end of DP2, unless BOTH conditions exist (8.14.d):
• If Total Allocated Costs for Withdrawn GIR increased by 25%
or more from the end of DP1 to DISIS Phase Two, and
• If the allocated cost per MW, based on requested capacity
increased by $10,000/MW or more from end of DP1 to DISIS
Phase Two
• If Transmission Provider determines no impacts to equally-
queued GIRS, then Financial Security One is refundable
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RISKS OF SECURITY FORFEITURE (8.14) PART II
Financial Security One, Two and Three, are at risk, if withdrawn after the end of DP2, unless BOTH conditions exist (8.14.e):
• If Total Allocated Costs for Withdrawn GIR increased by 35% or more from the end of DP2 to Facilities Study, and
• If the allocated cost per MW, based on requested capacity increased by $15,000/MW or more from end of DP2 to Facilities Study.
• If Transmission Provider determines no impacts to concurrently- or lower-queued GIRS, then Financial Security One, Two and Three are refundable
76
RISKS OF SECURITY FORFEITURE (8.14) PART III
If Facilities Study is subsequently revised, including Affected
Systems study, if any that meet Total Allocated Cost exceptions
under 8.14.e, request may be withdrawn (8.14.f):
• Withdraw must be made within (15) Business Days after
posting revised study results
• Financial Security One, Two and Three would be refundable
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RETAINING SECURITIES (8.14) PART IV
Any portion of Financial Security One, Two and Three that is
retained, due to harm upon equally- or lower-queued GIRS,
will be applied toward the increased cost of Network Upgrades
as a result of the Withdrawal (8.14.g):
• For Cash Securities, any available refunds will be provided,
with interest, after the adverse impact review is conducted
• For Securities provided under Letter of Credit, the
Transmission Provider will draw upon the Financial Institution
issuing the LOC for the funds
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INTERIM AVAILABILITY GIA & STUDY (11A)
• Intended for Interconnection Requests with In-Service Dates prior to expected Interconnection Study completion
• Formally requests in writing for Interim Interconnection Service
• Meet all terms and conditions of Section 8.2 and Securities per Article 11.5 of Interim GIA
• If feasible, Transmission Provider tenders draft Interim GIA (11A.3.1)
• Interim GIA negotiation period is (30) Calendar Days (11A.3.2)
80
MODIFICATION TO INTERCONNECTION REQUESTS
• Section 4.4 covers Modification allowances
• Permitted Modifications during DP1 (4.4.1)
• MW decrease up to 50% original
• Modify technical parameters
• Modify interconnection configuration
• Change from NRIS to ERIS
• Permitted Modifications during DP2
• MW decrease up to 10% original
Any increases will be require new requests
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MODIFICATION (PART 2)
• Transmission Provider may evaluation change request to
determine if modification is a Material Modification (4.4.2)
• Any Point of Interconnection changes are considered Material
Modifications
• Modification studies commence no later than (30) Calendar
Days from notification (4.4.3)
Interconnection Customers are responsible for all study costs
82
LIMITED OPERATION AVAILABILITY (8.4.3)
• If DISIS study determines that full amount of interconnection
capacity is not available (due to upgrades required to remedy
constraints) Transmission Provider shall quantify what
capacity is available
• Interconnection Customer may elect to proceed with Limited
Operation
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FUTURE GIP CHANGESTHROUGH THE SPP RR PROCESS
85
SPP REVISION REQUEST (RR) PROCESS
• Tariff changes may be proposed by any Qualified Entity*
• Completed RR Form
• Submitted through the SPP RMS Portal
• SPP Reviews and Routes to RTWG, RCWG and TWG
Qualified Entity includes: Any Market Participant; Transmission Customers or other entities that
are parties to transactions under the Tariff; Any Entity that is an SPP Member; Any staff member of
a governmental authority having jurisdiction over the SPP or any member company; SPP Staff; SPP
Market Monitor; Any rostered individual of an official SPP Committee, Task Force or Working
Group; Any entity designated by a Qualified Entity to submit a Revision Request “on their behalf”.
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SUCCESS FOR FUTUREGI REQUESTSGETTING BETTER TOGETHER
87
PLAN FOR SUCCESSFUL PROJECTS
Four leading causes of why Generation Interconnection
Requests are withdrawn:
• Submitting too close to DISIS Cluster Window Close
• Inadequate Demonstration of Site Control
• Application data incomplete
• Securities and Letters of Credit
89
SUBMIT INTERCONNECTION REQUESTS SOONER
DISIS Cluster Study Window – DISIS-2020-001
• May 25, 2019 until April 30, 2020
• (11) Month + (1) Month Cycle (5.1.3)
• DISIS Review Period May 1, 2020 until May 31, 2020 (8.3)
DISIS Cluster Study Window – DISIS-2020-001
91
GENERATOR INTERCONNECTION STUDY AGREEMENT
Let’s walk through the Appendix 3 and Attachments A, B & C
92
GEOGRAPHIC COORDINATES
• Line 5.a of Attachment A to Appendix 3
• SPP’s preference is DMS or DDM Coordinates
• Example of DMS: 37°25'19.07"N, 122°05'06.24"W
• Example of DDM: 32° 18.385' N 122° 36.875' W
93
COMMERCIAL OPERATION DATES
• Commercial Operation Dates (COD) are collected in the Appendix 3 and Attachment C form, also memorialized during the GIA Negotiation Period
• During Transition and Scoping Calls, COD will be evaluated with Interconnection Customer
• Prior to Effective Date of the GIA (4.4.4)
• Cumulative extensions ≤ 3 years not deemed Material Mod
• Cumulative extensions > 3 years deemed Material Mod
*Special conditions exists under Section 8.7 for Network Upgrades not being In Service prior to COD
95
SECURITIES AND LETTERS OF CREDIT (LOC)
Work on Securities and LOCs well in advance of the DISIS
Cluster Window Close date
• Financial institution must meet Creditworthiness as defined by
Attachment X of the SPP Tariff.
• SPP Credit / Risk requires “Credit and Security Agreement”
(CSA) form for any new incorporated entity not already on file
• Work with SPP Credit / Risk Department (Phil McCraw Email:
[email protected] or RMS)
97
DEFINITION OF SITE CONTROL
Site Control: shall mean documentation reasonably
demonstrating: (1) ownership of, a leasehold interest
in, or a right to develop a site of sufficient size for the
purpose of constructing the Generating Facility; (2) an
option to purchase or acquire a leasehold site of
sufficient size for such purpose; or (3) an exclusivity or
other business relationship between Interconnection
Customer and the entity having the right to sell, lease
or grant Interconnection Customer the right to possess
or occupy a site of sufficient size for such purpose.
98
WHAT WE ARE LOOKING FOR
• Documentation must reasonably demonstrate that Site
Control exists and/or is in place.
• Site Control should defensibly show: ownership, right to
develop, purchase, acquire, possess or occupy through
an ‘exchange of real property’.
• SPP is unable to accept Letters of Intent or other
Agreements with exclusivity solely for discussions or
negotiations.
• Site Control should have an expiry date commensurate
with the project Commercial Operation Date or beyond.
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WHAT IS NEEDED
• Reasonable Documentation that provides material control over real property.
Land Lease Agreements or Purchase Options, citing the actual acreage represented
• Completed and Signed Attestation Form
http://opsportal.spp.org/documents/studies/AttestationStatementForSiteControl.pdf
• Meet minimum acreage requirements, per SPP Site Control criteria or propose alternative site size based on final layout drawings under Section 8.2.a of the GIP and/or manufacturer’s specs.
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RECOMMENDED ACREAGE
• Because of the unique geography of our region, SPP seeks
the minimum specifications for acceptable site control sizing
for new generation interconnection requests:
• Wind Generation – 30 acres per MW*
• Solar Generation – 6 acres per MW*
• Storage/Battery – 1 acre per MW*
• Conventional Generation – 40 acres (fixed)*
*Interconnection Customer may propose an alternative site size, subject to criteria in Section 8.2.a of Attachment
V. Changes to Site Control as submitted in the DISIS Cluster is subject to Material Modification evaluation.
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SITE CONTROL PRECEDENCE
*SPP’s Site Control criteria is predicated on FERC Docket No.
ER09-1254-002, para 31, which reads in part: “{FERC} also declines
to require SPP to adopt features of the site control standards
establish by other RTOs/ISOs.” It further states: “The Commission
has found that the independent entity variation standard provides
the RTO and ISO with greater flexibility to customize its
interconnection procedures and agreements to fit regional needs.”
102
SITE CONTROL REFERENCES
• Typical discussions of Site Control may be found in SPP
Tariff Attachment V, in the following sections:
• Section 1 – Definitions
• Section 8.2.a – Demonstration of Site Control
• Section 11.3 – Execution and Filing
• Attachment A to Appendix 3, line 7 – Interconnection Request
• Other Sections not cited here
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WHAT GOES INTO THE GENERATION INTERCONNECTION STUDY?CAITLIN SHANK
GI ENGINEER II
105
STUDY INPUTS
•All Active Prior Queued Requests
•All Assigned Prior Queued Upgrades
•All Study requests
•Current Queue in study
107
• All Prior Queued Requests are Dispatched Using Group
Dispatch Methodology
• All Prior Queued Upgrades
• Interconnection Upgrades
• Non-Shared Network Upgrades
• Shared Network Upgrades
BC MODEL ASSUMPTIONS
108
BC MODELEXAMPLE FOR DISIS-2016-002
• All Prior Queued requests are dispatched.
• Prior Queued requests and Upgrades create the foundation for the Study requests.
Study requests
ARE NOT
dispatched
109
TC MODEL ASSUMPTIONS
• All Prior Queued Requests are Dispatched Using Group
Dispatch Methodology
• All Prior Queued Upgrades
• Interconnection Upgrades
• Non-Shared Network Upgrades
• Shared Network Upgrades
• All Study Requests are Dispatched Using Group Dispatch
Methodology
110
TC MODEL EXAMPLE FOR DISIS-2016-002
• Study requests are studied using a cluster methodology.
• Study requests are dispatched with all prior queued requests.
Study requests
ARE dispatched
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DISPATCHING MODELS:GROUPING
Requests are aggregated into regional groups based
on:
• Similar Geographical Impacts
• Electrical Impacts
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DISPATCHING MODELS:GROUP DISPATCH METHODOLOGY
To simulate and analyze the variety of generation
and service types included in a study cluster, three
dispatch scenarios are created:
• HVER (High-Variable Energy Resources)
• LVER (Low-Variable Energy Resource)
• NR (Network Resource)
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ACCC/TDF ANALYSIS
• For DISIS power flow models:
• The ACCC function of PSS®E is used to simulate:
• Single-element outages
• Breaker-to-breaker outages
• Using the standard contingency and monitored files
• An impact analysis is then performed using PSS®MUST to
determine the Transfer Distribution Factor (TDF) of each
request on the constraint / overload.
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CONSTRAINT MITIGATIONTDF CRITERIA
• Constraints are mitigated for requests that meet the
following TDF criteria for mitigation.
Service Type Constraint Type TDF %
ERIS System Intact 3
ERIS n-1 20
NRIS System Intact 3
NRIS n-1 3
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CONSTRAINT MITIGATIONDETERMINING SOLUTION SET
For all constraints requiring mitigation, GI Staff will
perform multiple scenarios using multiple upgrade
options to determine the most effective and least
cost solution set.
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CONSTRAINT MITIGATION
Coordination with Transmission Owner
Once the solution set has been determined, SPP
staff will work with the affected Transmission
Owner(s) (TO) to:
• Confirm Upgrade is viable
• Develop cost estimates
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ALLOCATING COSTS
• The cost allocation of each needed Network Upgrade is
determined using the MW amount of each request and its
impact on the given project.
• This allows for the most efficient and reasonable mechanism for
sharing the costs of upgrades.
• Costs assigned to each request are generally listed in Appendix E
of each DISIS report.
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ALLOCATING COSTS
Below is an example of the calculation:
1. Determine an Impact Factor on a given project for all responsible requests:
Request X Impact Factor on Upgrade 1 = PTDF (%)(X) * MW(X) = X1
Request Y Impact Factor on Upgrade 1 = PTDF (%)(Y) * MW(Y) = Y1
Request Z Impact Factor on Upgrade 1 = PTDF (%)(Z) * MW(Z) = Z1
2. Determine each request’s Allocation of Cost for that particular Upgrade:
𝑋′𝑠 Upgrade 1 𝐶𝑜𝑠𝑡 𝐴𝑙𝑙𝑜𝑐𝑎𝑡𝑖𝑜𝑛($) = (𝑈𝑝𝑔𝑟𝑎𝑑𝑒 1 𝐶𝑜𝑠𝑡 ($) × 𝑋1) / (𝑋1+𝑌1+𝑍1)
3. Repeat steps 1 and 2 for each Upgrade on the requests that meet the TDF criteria.
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WHAT WE’RE DOINGTO MAKE THINGSBETTERBRAD FINKBEINER
SUPERVISOR, TARIFF SERVICES
127
THINGS ARE GETTING BETTER
SPP Management and Staff are working to truncate the study
posting windows and shorten the DISIS Cluster Study Life
Cycle.
• Staff Additions and Team Reconfiguration
• Increased outsourcing
• (11) Month + (1) Month Window Cycle
• Automation (Dispatch, ACCC, TDF/Results Processing)
• Improved Study Model Availability
• SmartQ
129
ACCC / TDF / RESULTS PROCESSINGMANUAL PROCESS
• Manual Process took about 12 to 16 hours per cycle:
Manually prepare ACCC
run parameters and
submit to Enfuzion runs
Manually prepare TDF run
parameters and submit to
Enfuzion runs
Wait for run
to complete
Wait for run
to completeManually combine results
for analysis and mitigation
Repeat until
all violations
mitigated
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ACCC / TDF / RESULTS PROCESSINGAUTOMATED PROCESS
• Automated Process takes about 5 to 6 hours per cycle:
Automatically set up
ACCC run parameters
and send to Enfuzion
Automatically set up
TDF run parameters
and send to Enfuzion
All results
returned
All results
returned
Automatically combine
results and filter for
analysis and mitigation
Repeat until
all violations
mitigated
Python
Automation
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DISPATCH PROCESSMANUAL PROCESS
• Manual Process takes about 3 to 4 weeks:
Manually prepare dispatch
parameters for all PQ/CQ
gen and submit to
Enfuzion
Manually prepare Local
Control Area run
parameters and submit to
Enfuzion
Solve all
Blown-
Up/Iterated
Models
Solve all
Blown-
Up/Iterated
Models
Manually prepare SPP
Footprint run parameters
and submit to Enfuzion
Repeat until all
SPP Swing buses
are within
Pmax/PMin range
Solving these
models is really
time consuming
because we
dispatch all units
at once
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DISPATCH PROCESS(AUTOMATION IN DEVELOPMENT)
Automatically prepare
dispatch parameters for
increment(x) of PQ/CQ
gen and submit to
Enfuzion
Automatically prepare
Local Control Area run
parameters and submit
to Enfuzion
Solve all
Blown-Up /
Iterated
Models
Add
reactive
support
Incremental
dispatch
reduces
solve time
All
Swing
Buses in
Range?
All units
dispatched?
NOYES
NO
Remove
reactive
support
Automatically prepare
SPP Footprint run
parameters and submit
to Enfuzion
YESDONE!!
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SmartQ
SmartQ will be SPP’s automation solution to gather, manage
and report Tariff Studies (GI, Transmission, DPA, etc)
• Concluding Business and Technical Requirements Oct 2019
• Projected Launch Date 30 March 2020
• Secure Online Submission Web Platform (two-factor authentication)
• Allows for rapid Validation and Acceptance
• Provides document uploads and auto alerts to customers
• Drives public Queue data and metric
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QUESTIONS ANDANSWERSQ&A SESSION
135
Q & A TIME
Remember some ground rules
• Tariff rules all discussion discrepancies
• Educational session on the GI Three-Phase Study Process
• Unable to discuss Policy matters (Use Email / RMS)
• No discussion of specific Interconnection Requests