eim settlements wheeling customer training september …€¦ · 3 pse fits into an expanding caiso...
TRANSCRIPT
EIM Settlements Wheeling Customer Training
September 15, 2016
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EIM Settlements Customer Training
Review – EIM 101
EIM terminology
Participating / Non-Participating
Charge Codes
LAP / LMP
Losses
Instructed Imbalance Energy
Timelines
Base Schedules
Settlements
Charge Codes explained
Scenarios
Additional resources for further information
Questions?
Appendix
3
PSE Fits Into An Expanding CAISO EIM Footprint
• The CAISO EIM went live with
PacifiCorp in November 2014.
• PSE is preparing to join the
CAISO EIM on October 1, 2016.
• Benefits are adding up:
As of Q2 2016, the EIM's
benefits total $88.2 million
since the western EIM began
on November 1, 2014.
4
PSE as EIM Entity is responsible for:
• Submitting balanced base schedules for all resources, loads, and
intertie transactions to CAISO.
• Resource dispatch
• Deploying regulation and maintaining BA Area Control Error (ACE)
to meet NERC balancing requirements
• Deploying contingency reserves (Spin, Supplemental Reserves) to
meet WECC reliability requirements
• Keeping CAISO’s Outage Management System (OMS) informed of
derates and outages.
• Processing settlement and paying CAISO invoices for imbalance
energy for all loads and non-participating resources and allocating
applicable charges to transmission customers.
5
Wheeling Customers
Customers wheeling
through PSE’s BAA
on its Washington
Area paths will be
affected by the EIM
and subject to EIM
charges. This
includes all
scheduling points in
the blue circle.
6
What Does EIM mean for Wheeling Customers?
(Without Load or Generation in PSE’s BAA)
Today EIM Customer
Action Required
Scheduling E-tag E-tag
Settlements No imbalance
charges.
Subject to EIM
charges if E-tags are
submitted or
adjusted after T-57.
Bill Frequency No imbalance
charges on monthly
invoice.
Monthly (around the
25th of the month for
prior month).
*Preliminary weekly
data reports for
added transparency.*
Customers must
provide PSE notice
of dispute 7 days
prior to CAISO
T+77B deadline.
EIM Terminology
8
Participating vs. Non Participating
9
Non-Participating Resource
Non-Participating Resource Customers will maintain their
relationship with PSE and will have limited interaction with
CAISO (to submit base schedules).
Charge Codes EIM Charge Codes
11
Energy Imbalance Market Pricing
Today imbalance is settled at day-ahead Mid-C ICE Index prices.
In the EIM:
Generation and E-tag Changes
Settle at a 5 and 15 minute
Locational Marginal Price (LMP).
Load Changes Settle at an hourly
Load Aggregation Point (LAP).
Locational Marginal Price
(LMP)
Load Aggregation Point
(LAP)
These examples are not meant
to reflect actual resource or load
locations.
12
EIM Pricing – What is LMP ?
Energy Locational
+ Congestion = Marginal
+ Losses Price
(LMP)
Note: A Greenhouse Gas Component applies to Participating Resources.
13
EIM Pricing – What is LAP ?
Average Load
of PSE BA = Aggregation
LMPs Point
(LAP)
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Changed Settlements Components
• Schedule 1A – EIM Administrative Costs
• Schedule 4 – Energy Imbalance
• Schedule 4R – Energy Imbalance for 449 customers
• Schedule 9 – Generator Imbalance
• Schedule 12 – Losses on WA area
• Currently a component of imbalance charge to 449 customers
• Schedule 12A – Losses on Southern Intertie and Colstrip
• Attachment O, Section 8 – Other EIM Charges
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Washington Area Losses in the EIM
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Imbalance – Instructed E-tags
• [anything here to use from CAISO training?] The difference
between…
And… Is… Billed on
Charge Code
E-tag at T-57 Final E-tag Instructed Imbalance
Energy (IIE)
64600, 64700
Timelines – Base Schedules
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Base Schedules – Without Load or Generation in PSE BAA
• A base schedule, which includes eTags, is forecast information for
all Interchange and Intrachange.
• Final base schedule submitted no later than 77 minutes before
each operating hour.
• Modifications to base schedule may be made up to 57 minutes
before the operating hour.
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Base Schedules
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Base Schedule Timeline
T-77 T-60 T-57 T-57 T-40 T-37.5 T-22.5 T-7.5 T-2.5
Business
HR
Business
MIN
Submit base
schedule
1st
sufficiency
test results
published
Update base
schedule
E-tag dead-
line
Final
sufficiency
test run FMM run FMM award RTM run RT dispatch
0 0 22:43:00 23:00:00 23:03:00 23:03:00 23:20:00 23:22:05 23:37:05 23:52:05 23:57:05
0 5 23:57:05 0:02:05
0 10 0:02:05 0:07:05
0 15 23:37:05 23:52:05 0:07:05 0:12:05
0 20 0:12:05 0:17:05
0 25 0:17:05 0:22:05
0 30 23:52:05 0:07:05 0:22:05 0:27:05
0 35 0:27:05 0:32:05
0 40 0:32:05 0:37:05
0 45 0:07:05 0:22:05 0:37:05 0:42:05
0 50 0:42:05 0:47:05
0 55 0:47:05 0:52:05
1 0 23:43:00 0:00:00 0:03:00 0:03:00 0:20:00 0:22:05 0:37:05 0:52:05 0:57:05
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Base Schedule Timelines
Forecast Data
Type
Method of
Supplying
Forecast Data
Initial
Submission
Deadline
Update
Submission
Deadline
Proposed Final
Submission
Deadline
Final Submission
Deadline
(Financially Binding)
Generation
Forecast Data
BSAP T-7 days 10 a.m. before
Operating Day
T-77 minutes T-57 minutes
Interchange &
Intrachange
Forecast Data
(Trans
Customers with
resources or load
in PSE BAA)
E-Tags T-7 days 10 a.m. before
Operating Day
T-77 minutes T-57 minutes
Interchange
Forecast Data
(Trans
Customers
without
resources or
load in PSE
BAA)
E-Tags Not applicable Not applicable T-77 minutes T-57 minutes
Timelines - Settlements
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Settlement Calendar
• CAISO Settlement calendar for EIM Markets
o Initial Settlement @ Trade Date (T) + 3 Business Days (B)
o Recalculation Settlement @ Trade Date + 12 Business Days
o Recalculation Settlement @ Trade Date + 55 Business Days
o Optional Recalculation Settlement @ Trade Date + 9 Months (M)
o Optional Recalculation Settlement @ Trade Date + 18 Months
o Optional Recalculation Settlement @ Trade Date + 35 Months
o Optional Recalculation Settlement @ Trade Date + 36 Months
o Optional Unscheduled Recalculation Settlement with 30 day notice
• Note: Resettlements can occur after the 36-month settlement. CAISO recently resettled the
first day of MRTU for the third time after the 36-month settlement was posted.
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CAISO Disputes Calendar
CAISO supports disputes per the following timeline:
• Initial Settlement Trade Date (T) + 3 Business Days (B)
• Not Disputable.
• Recalculation Settlement @ T + 12 B
• All disputable except for estimated meter data through T + 26 B.
• Recalculation Settlement @ T + 55 B
• All disputable through T + 77 B.
• Optional Recalculation Settlement @ T + 9 Months (M)
• Only incremental values are disputable through T + 10 M.
• Optional Recalculation Settlement @ Trade Date + 18 M.
• Only incremental values are disputable through T + 19 M.
• Optional Recalculation Settlement @ Trade Date + 35 M
• Only incremental values are disputable for 7 calendar days.
• Optional Recalculation Settlement @ Trade Date + 36 M
• Not Disputable.
• Optional Unscheduled Recalculation Settlement with 30 day notice
• Only incremental values are disputable for 22 business days.
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PSE Customer Disputes
• CAISO charge code allocation disputes between PSE and a Transmission Customer or Interconnection Customer, (Customer), will be resolved in accordance with the dispute resolution process set forth in PSE’s Open Access Transmission Tariff, (OATT).
• If a PSE Customer disputes a CAISO charge or pass through billed by PSE, the Customer can not dispute the charge directly with CAISO, but PSE can on their behalf.
• In order for PSE to meet CAISO dispute deadlines, Customers disputing CAISO charges must provide PSE appropriate supporting documentation 7 business days prior to CAISO’s deadline of T+77B (77 business days after disputed trade date). Email documentation to: [email protected]
• Common information requirements for supporting documentation:
• Trading Day and Settlement Period or Trading Hour(s)
• Charge Code
• Detailed description of dispute
• Supporting evidence in support of suggested correction
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Customer Disputes, continued
• Notice of dispute between PSE and CAISO is posted on PSE’s OASIS within 5
days of initiating dispute with CAISO. Upon resolution of any dispute, PSE will
post notice on PSE’s OASIS within 5 days of resolution, including nature of
resolution and any settlement-related effects of the resolution on other
Customers.
• Further information may be found in PSE’s Open Access Transmission Tariff,
(OATT), the CAISO Settlements Business Practice Manual and PSE EIM Business
Practice Manual, all posted on PSE’s OASIS site.
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CAISO Dispute Timeline
* Submit dispute materials to PSE email: [email protected]
Statement
Published by MO
Settlement Dispute
Deadline [w/ CAISO]
Deadline for Notice to
PSE EIM Entity *
Settlement Dispute
Data
T+12B T+26B T+19B All but estimated
meter data
T+55B T+77B T+70B All
T+9M (T+194B) T+10M (T+216B) T+209B Incremental changes
only
EIM Charge Codes
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Charge Code – FMM Instructed Imbalance
CC Number: 64600 Dollar Impact: Large Occurrence: Daily
CC Name: FMM Instructed Imbalance Energy EIM Settlement
CC Interval: 15 Minute
Calculated Against: All Resources and Interties
CC Application: CAISO calculates a 15 minute market (FMM) dispatch solution prior to calculating a 5 minute market. The output of the FMM is both a dispatch level and a FMM LMP. All non-demand positions, both participating and non-participating locations may receive an incremental dispatch different than the submitted hourly base schedule volume. CAISO will dispatch all participating resources economically based on their bid and operational limits. Non-participating resources will be dispatched based on their actual output bound by their operational limits. The difference between the FMM dispatch and base schedules will be settled at the FMM LMP. Operational limits are from CAISO OMS.
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Charge Code – Real Time Instructed Imbalance
CC Number: 64700 Dollar Impact: Large Occurrence: Daily
CC Name: Real Time Instructed Imbalance Energy EIM Settlement
CC Interval: 5 Minute
Calculated Against: All Resources and Interties
CC Application: CAISO calculates a Real Time Dispatch (RTD) solution every 5 minutes. The output of the RTD includes both a dispatch level and a RTD LMP. All generators, both participating and non-participating, may receive an incremental dispatch different than the submitted hourly base schedule volume and FMM dispatch. CAISO will dispatch all participating resources economically based on their bid and operational limits. Non-participating resources will be dispatched based on their actual output bound by their operational limits. The difference between the RTD dispatch and FMM dispatch will be settled at the RTD LMP.
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Metered Demand & Measured Demand
Metered Demand
• Metered load volumes in PSE’s Balancing Authority Area.
Measured Demand
• Metered demand plus export volumes from PSE BA.
Scenarios
33
Scenario – Interchange – Assumption 1
Assumptions:
1. Interchange base schedule (tag) submitted prior T-57 and
not adjusted after T-57
2. E-tag value is 75 MWh.
3. LAP is $50/MWh.
Settlement :
1. No interchange energy imbalance.
2. Losses on base schedule is paid by the tagging agent:
75 MWh* loss rate * LAP =
75 MWh*2.7%*$50/MWh = $101.25 charge to tagging agent.
PSE BA
LAP $50/MWh
34
Scenario – Interchange – Assumption 2
Assumptions:
1. Base schedule (tag) submitted prior to T-57 for 75 MWh.
2. Tag was curtailed after T-57 down to 70 MWh.
3. LMP at POR is $55/MWh, at POD is $30/MWh.
4. LAP is $50/MWh.
Settlement :
1. Losses on base schedule is paid by the tagging agent.
75 MWh * loss rate * LAP =
75 MWh * 2.7% * $50/MWh = $101.25 charge to agent
2. E-tag Instructed imbalance = Base Schedule – Final e-tag.
(75 MWh–70 MWh) * (POR LMP–POD LMP) =
(75 MWh–70 MWh)*($55/MWh–$30/MWh) =
(5 MWh)*($25/MWh) = $125 credit to tagging agent.
POR on PSE BA border
LMP $55/MWh
PSE BA
LAP $50/MWh
POD on PSE BA border
LMP $30/MWh
Additional Information and Resources
36
How will Settlements billing work?
• Allocated EIM charges rolled up in Excel by Settlement date and
emailed weekly to Customers for use in reconciling PSE
statement.
• EIM-only statement sent out by PSE.
• All other (non-EIM) transmission billing follows existing procedure.
• New Settlements email [email protected]
• Look for “How to Read Your Bill” webinars in early 2017
37
Common EIM Acronyms
ACE Area Control Error
ADS Automated Dispatch System
BA Balancing Authority
BAA Balancing Authority Area
BPM Business Practice Manual
CAISO California Independent System Operator
DGAP Default Generation Aggregation Point
EESC EIM Entity Scheduling Coordinator
EIM Energy Imbalance Market
FMM Fifteen Minute Market
GMC Grid Management Charge
IIE Instructed Imbalance Energy
38
Common EIM Acronyms - continued
ISO Independent System Operator
LAP Load Aggregation Point
LMP Locational Marginal Price
LSE Load Serving Entity
MO Market Operator
OASIS Open Access Same Time Information System
PNODE Pricing Node
RTD Real Time Dispatch
SC Scheduling Coordinator
SQMD Settlement Quality Meter Data
UIE Uninstructed Imbalance Energy
VER Variable Energy Resource
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Glossary
Ancillary Services Services necessary to support transmission capacity while maintaining reliable transmission operation.
Balancing Authority Area Collection of generation, transmission and loads within the metered boundaries of the Balancing Authority. (BAA)
CAISO State-chartered non-profit public benefit corporation and market operator for the Energy Imbalance Market.
Energy Imbalance Market Real-time market to manage transmission congestion and optimize energy procurement in order to balance supply and demand. (EIM)
EIM Area Combination of PSE’s BAA, the CAISO BAA, and the balancing authority areas of any other EIM entities.
EIM Entity A balancing authority entering in agreement with the market operator to enable EIM to occur in its balancing authority area.
Imbalance Energy Deviation of supply or demand from Base Schedule, as measured by metered load, metered generation, or real time Interchange/Intrachange schedules.
Instructed Imbalance Energy
Operational adjustments to Interchange or Intrachange; resource imbalances created by manual dispatch; or adjustment to resource imbalances. (IIE)
Load Aggregation Point Set of pricing nodes used for submission of bids and settlement of demand in the Energy Imbalance Market. (LAP)
40
Glossary - continued
Locational Marginal Price Marginal cost ($/MWh) of serving next increment of demand at that price node, consistent with existing transmission constraints. (LMP)
Manual Dispatch An operating order used to address reliability or operational issues in BAA not addressed through economic dispatch or congestion management.
Market Operator Entity responsible for operation, administration, settlement and oversight of Energy Imbalance Market. (MO)
Measured Demand Metered demand plus export volumes from PSE Balancing Authority Area.
Metered Demand Metered load volumes in PSE’s Balancing Authority Area.
Pricing Node Single network node where physical injection or withdrawal is modeled by the Market Operator, used in calculating LMP. (PNode)
Uninstructed Imbalance Energy
Difference between base schedule or manual dispatch and meter data; or difference between base schedule and actual hourly load. (UIE)
Variable Energy Resource Electricity production from energy source that is renewable, unable to be stored, and has variability beyond control of facility owner or operator. (VER)
41
PSE’s Transmission Website (OASIS)
http://www.oasis.oati.com/psei/index.html
EIM Information can be
found here
EIM Information can be
found here
Tariff Information can be
found here
42
PSE Information Links
• PSE’s Transmission Website (OASIS) http://www.oasis.oati.com/psei/index.html
• PSE Tariff http://www.oatioasis.com/PSEI/PSEIdocs/2016-09-01_PSE_currently_effective_OATT.pdf
• PSE EIM Business Practice Manual http://www.oatioasis.com/PSEI/PSEIdocs/PSE_EIM_BP_9-1-2016.pdf
• Transmission Settlements Email box:
• PSE EIM Email box:
43
CAISO Information Links
• CAISO EIM Resources: http://www.caiso.com/informed/Pages/EIMOverview/Default.aspx
• CAISO Business Practice Manual: http://bpmcm.caiso.com/Pages/BPMDetails.aspx?BPM=Energy Imbalance Market
44
Questions
Appendix - Additional Information
46
CAISO Demand Settlement for EIM Entities
All loads submit meter data to OMAR.
CAISO uses 4 charge codes to perform load settlement for EIM entities:
CC 6478 is used to settled all EIM BA imbalance revenue neutrality. CAISO calculates the dollar differences between the instructed and uninstructed energy for all generation, demand and interties in a BA. The net difference is allocated to all demand in the BA.
CC 64740 is used to account for Unaccounted For Energy (UFE).
The difference between metered load and Base Schedule is settled in CC 64750.
47
Transmission Congestion in the EIM
Appendix - Real Time Work Flow
49
Real Time Work Flow
What are the major milestones and requirements of the Real-Time Workflow for all three players:
Intertie Schedules – The EESC is required to aggregated and submit directional Base
Schedules to CAISO for all BA Interties by T-75 with any adjustments submitted by T-40.
– The EESC will need to aggregate tags directionally, apply schedule ramping and submit 5 minute interval volumes to CAISO, including updates, through the upcoming 5 hours. These are referred to as Real-Time Schedules.
– The EESC will need to aggregate tags directionally after the hour has completed and submit an after the hour flow without ramping on a 5 minute interval basis. These volumes can be update to 168 hours after the hour concludes.
Tagged Schedules – All pending and approved intertie tags that will be included in Base
Scheduling must be submitted and seen by the EESC by T-57
– All tags must be submitted and approved by T-20 (note tags after T-57 are subject to imbalance charges).
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Real Time Work Flow – EESC – BA
A typical hourly Real-Time workflow would resemble the following:
T - 90 to T - 75 One hour and 30 minutes before the start of the hour
– The BA will need to calculate Intertie Base Schedules and submit them to CAISO by T-75.
o Base Schedules are calculated directionally and may be rolled together to neighboring BAs.
o Intertie Schedules used in Base Schedules can be modified until T-57.
o Both approved and pending intertie schedules are included in calculating Base Schedules.
o CAISO does require group schedules into categories such as Mirror and ETSR besides the standing CAISO E-Tie and I-Tie.
51
Real Time Work Flow – EESC – Balancing Authority
A typical hourly Real-Time workflow would resemble the following: (Continued)
T - 55 to T - 40 55 minutes before the start of the hour. Items to be completed on or before T – 40:
– Review CAISO’s posted balancing results from the T-55 evaluation.
– Make any last minute Base Schedule balancing changes resulting from changes to forecasts and resource availabilities. Note CAISO’s forecasts for VER and Load lock at T-60.
– Make Base Schedule adjustments for balancing and flexible requirement changes to pass the CAISO tests.
52
Real Time Work Flow – EESC – Balancing Authority
A typical hourly Real-Time workflow would resemble the following: (Continued)
T - 75 to T - 55 One hour and 15 minutes before the start of the hour.
– The EESC will need to review CAISO T-75 test results (sufficiency & flex ramp). If changes are desired to the resource plan, typically they are communicated to the affiliate PRSC who would make the changes before they are locked out at T-55.
– The BA will need to update the Intertie Base Schedules and submit them to CAISO by T-55. Note these Schedules shouldn’t change after T-57.
53
Real Time Work Flow – EESC – Balancing Authority
T-40 to T+60
• Base Schedule changes are locked at T-40 for the EESC.
• The EESC will need to provide Real-Time Schedules to CAISO on a 5 minute basis by registered intertie through the next 5 hours. The schedules are aggregated by registered tie with ramping applied. After the hour concludes through T + 168 the EESC will need to provide the schedules aggregated, un-ramped.
• Although Bids and Base Schedules are locked, the EESC will need to keep CAISO OMS up to date as soon as possible for Non-Participating Resources. OMS data is used in CAISO’s clearing engine.
• The CAISO market clearing engine snaps the data from CAISO’s OMS at the time it starts calculating each market run.
• What can be changed in CAISO’s OMS:
– Outages & Derates
– Minimum and Maximum Limits
– Ramp Rates.
• CAISO starts each PRDT run 37.5 minutes before the start of the 15 minute interval and starts the RTD run 7.5 minutes before the start of the next 5 minute interval.