Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and...
Transcript of Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and...
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Module 3
Day-Ahead Market
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• Describe the Day-Ahead Market and its related settlements.
• Identify the actions that impact DAM Settlements.
• Calculate the DAM Settlements associated with Energy.
• Calculate the DAM Settlements associated with Ancillary Services (AS).
• Define and calculate Make-Whole Settlements in the Day-Ahead.
Upon completion of this module, learners will be able to:
Module Objectives: Day-Ahead Market
Day 1
Course Introduction
Congestion Revenue
Day-Ahead Market
Rights
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Products bought and sold in the DAM:
Day-Ahead Market
Energy Offers & Bids
Ancillary Service Offers
PTP Obligation Bids
Energy Awards
PTP Obligation Awards
Ancillary Service Awards
Day-AheadMarket
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Day-Ahead Market Settlements
DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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Energy Offers & Bids
Participation in the DAM: Outcomes
DAMParticipation in DAM• Energy• AS• PTP Obligations
Charge to QSE for Awarded Energy Bid in DAM
Outcome #1
Payment to QSE for Awarded Energy Offer in DAM
Outcome #2
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DAM Settlements: Charge for an Awarded Energy Bid
• QSE5 submits an Energy Bid in the Day-Ahead Market
DAM Energy Bid is a QSE’s willingness to buy energy:
• Maximum price• Up to a certain quantity• At a specific Settlement Point in
the DAM
Trigger #1
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DAM Settlements: Charge for an Awarded Energy Bid
• QSE5 submits an Energy Bid in the Day-Ahead Market
• Bid Price = $45/MWh• Quantity = 68MW for one hour• At Load Zone 2
• ERCOT executes the DAM Clearing Process
• DAM prices Load Zone 2 at $40 / MWh
Trigger #1
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DAM Settlements: Charge for an Awarded Energy Bid
• QSE5 purchased:
• 68 MW of Energy for one hour• At Load Zone 2• Price of $40/MWh
Trigger #1
Outcome #1
(Day-Ahead Settlement Point Price) * (Quantity)
• Settled hourly• Settlement calculation is:
($40/MWh) * (68 MW) = $2720
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DAM Settlements: Charge for an Awarded Energy Bid
DAEPAMTQSETOT q = DAEPAMT q, p
DAEPAMT q, p = DASPP p * DAEP q, p
Day-Ahead Energy Purchase Amount
Determinants
q = QSE
p = A Settlement Point
Day-Ahead Energy PurchaseAmount
Day-Ahead Settlement Point Price
Day-Ahead Energy Purchase
Day-Ahead Energy PurchaseAmount QSE Total
∑P
DAMParticipation in DAM• Energy• AS• PTP Obligations
Day-Ahead Energy Purchase Amount QSE Total
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Energy Offers & Bids
Participation in the DAM: Outcomes
DAMParticipation in DAM• Energy• AS• PTP Obligations
Charge to QSE for Awarded Energy Bid in DAM
Outcome #1
Payment to QSE for Awarded Energy Offer in DAM
Outcome #2
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DAM Settlements: Payment of an Awarded Energy Offer
• QSE1 submits an Energy Offer in the Day-Ahead Market
• Three-Part Supply Offer– Startup Offer– Minimum Energy Offer– Energy Offer Curve
• DAM Energy-Only Offer
Two types of Energy Offers in Nodal Market
Trigger #2
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DAM Settlements: Payment of an Awarded Energy Offer
• QSE1 submits an DAM Energy-Only Offer in the Day-Ahead Market
• Offer Price = $16/MWh• Quantity = 40 MW for one hour• At Resource Node 4
• ERCOT executes the DAM Clearing Process
• DAM prices Resource Node 4 at $16/MWh
Trigger #2
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DAM Settlements: Payment of an Awarded Energy Offer
• QSE1 sold:
• 40 MW of Energy for one hour• At Resource Node 4• Price of $16/MWh
(-1) * (Day-Ahead Settlement Point Price) * (Quantity)
• Settled hourly• Settlement calculation is:
(-1) * ($16/MWh) * (40 MW) = -$640
Trigger #2
Outcome #2
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DAESAMTQSETOT q = DAESAMT q, p
Day-Ahead Energy Settlements - Payments
DAESAMT q, p = (-1) * DASPP p * DAES q, p
Day-Ahead Energy Sale Amount
Day-Ahead Settlement Point Price
Day-Ahead Energy Sale
Day-Ahead Energy Sale Amount QSE Total
Day-Ahead Energy Sale Amount
∑p
Determinants
q = QSE
p = A Settlement Point
DAMParticipation in DAM• Energy• AS• PTP Obligations
Day-Ahead Energy Sale Amount QSE Total
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Any or all CCGRs from a Combined Cycle Train may be offered in the
Day-Ahead Market.
• A group of Combustion Turbines (CT) and Steam Turbines (ST)
• Operate in one or more configurations
Combined Cycle Generation Resource (CCGR)
• A registered configuration of a Combined Cycle Train
• Offered as a single Resource
Combined Cycle Train (CCT)
Day-Ahead Energy Settlements - Combined Cycle Resources
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DAM may start any offered CCGR and transition from one
offered CCGR to another
Day-Ahead Energy Settlements - Combined Cycle Resources
CCGR 1
CCGR 2
Combined Cycle Plant
Train 1 Train 2
ST1 CT1 CT2 CT3 ST2 CT4 CT5 CT6
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Settlement Point Locations in DAM
Transaction
Settlement Point3PSO CCGR
3PSO
DAM Energy
Only Offer
DAM Energy Bid
PTP Obligation Bids
QSE to QSE Trades
Resource Node X X X X X
CCP Logical Resource Node X
CCU Resource Node X X X X
Load Zone X X X X
Hub X X X X
Notes:1. CCP = Combined Cycle Plant2. CCU = Combined Cycle Unit3. 3PSO = Three Part Supply Offer4. CCGR = Combined Cycle Generation Resource
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Day-Ahead Market Settlements
DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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The required quantity in MW of each Ancillary Service for each hour of the Operating Day ERCOT-wide
• Developed by ERCOT
• Posted to MIS Public Area by 0600
Ancillary Service (AS) Plan
Day-Ahead Market Ancillary Services Settlements
Types of Ancillary Services• Regulation Up (Reg-Up)• Regulation Down (Reg-Down) • Responsive Reserve• Non-Spin
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Day-Ahead Market Ancillary Services Settlements
• Per QSE
• Per type of Ancillary Service (AS)
• Per hour
By 0600 Day-Ahead, ERCOT posts each QSE’s AS Obligation to the MIS Certified Area.
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QSE may Self-arrange by 1000:
• Self Supply its AS Obligation• Trade to cover AS Obligation
QSE may Offer AS by 1000:
• Offer available capacities by AS Type• Offers include MW and Price
ERCOT procures:
• Ancillary Services not self-arranged
In the Day-Ahead Market:
Day-Ahead Market Ancillary Services Settlements
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Ancillary Services in the Day-Ahead Market
Participation in the DAM: Outcomes
DAMParticipation in DAM• Energy• AS• PTP Obligations
Payment to QSE for Awarded AS Offer in DAM
Outcome #1
Charge to QSE for ERCOT procuring AS on its behalf
Outcome #2
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DAM Settlements: Payment of an Awarded AS Offer
• QSE4 offers to sell AS in the Day-Ahead Market
• Resource• Quantity (tenths of MWs)• Price• Ancillary Service type • Range of hours offered• Expiration date and time of offer
Trigger #1
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DAM Settlements: Payment of an Awarded AS Offer
• QSE4 submits an Offer to sell Ancillary Service capacity
• Regulation Up (Reg-Up)• 100 MW for at least $4/MW
• ERCOT executes the DAM Clearing Process
• DAM sets Day-Ahead Market Clearing Price for Capacity (Reg-up) at $4/MW and awards QSE4’s Offer
Trigger #1
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DAM Settlements: Payment of an Awarded AS Offer
• QSE4 sold:
• 60 MW of Regulation Up (Reg-Up)
• Day-Ahead Market Clearing Price for Capacity of $4/MW
(-1) * (Price) * (Quantity)
• Settled hourly• Settlement calculation is:
(-1) * ($4/MW) * (60 MW) = -$240
Trigger #1
Outcome #2
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Regulation Up Service Payment
Day-Ahead Market Ancillary Services Payments
q = QSE
DAM = Day-Ahead Market
Procured Capacity Reg-Up AmountProcured Capacity Reg-Down Amount Procured Capacity Responsive Reserve
Amount Procured Capacity Non-Spin Amount Market Clearing Price Capacity Reg-UpMarket Clearing Price Capacity Reg-Down Market Clearing Price Capacity Resp.
ReserveMarket Clearing Price Capacity Non-Spin Procured Capacity Reg-UpProcured Capacity Reg-DownProcured Capacity Responsive ReserveProcured Capacity Non-Spin
Determinants
PCRUAMT q = (-1) * MCPCRU DAM * PCRU q, DAM
$-240 QSE4 = (-1) * $4/MW DAM * 60MW QSE4
DAMParticipation in DAM• Energy• AS• PTP Obligations
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PCNSAMTq = (-1) * MCPCNS DAM * PCNSq,DAM
PCRRAMTq = (-1) * MCPCRR DAM * PCRRq,DAM
PCRDAMTq = (-1) * MCPCRD DAM * PCRDq,DAM
PCRUAMTq = (-1) * MCPCRU DAM * PCRUq, DAM
Regulation Down Service Payment
Day-Ahead Market Ancillary Services Payments
Regulation Up Service Payment
Responsive Reserve Service Payment
Non-Spinning Reserve Service Payment
Procured Capacity Reg-Up AmountProcured Capacity Reg-Down Amount Procured Capacity Responsive Reserve
Amount Procured Capacity Non-Spin Amount Market Clearing Price Capacity Reg-UpMarket Clearing Price Capacity Reg-Down Market Clearing Price Capacity Resp.
ReserveMarket Clearing Price Capacity Non-Spin Procured Capacity Reg-UpProcured Capacity Reg-DownProcured Capacity Responsive ReserveProcured Capacity Non-Spin
Determinants
DAMParticipation in DAM• Energy• AS• PTP Obligations
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Participation in the DAM: Outcomes
Ancillary Services in the Day-Ahead Market
DAMParticipation in DAM• Energy• AS• PTP Obligations
Payment to QSE for Awarded AS Offer in DAM
Outcome #1
Charge to QSE for ERCOT procuring AS on its behalf
Outcome #2
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• ERCOT will procure the remaining portion in DAM
• ERCOT procures AS from available AS Offers
If a QSE does not self-arrange all of its AS Obligation:
DAM Settlements: Charge for ERCOT Procurement of AS
QSE5 AS Obligation
Portion of AS Obligation QSE5 Self-Arranges
Portion of AS Obligation ERCOT Needs to Procure on QSE5’s Behalf
Reg-Up
Reg-Up
Reg-Up
AS Offers
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• Limited to -500 MW for each Ancillary Service
• Limited in magnitude to net AS Trades (compliance only)
A QSE may submit negative Self-Arranged AS Quantities:
DAM Settlements: Charge for ERCOT Procurement of AS
QSE5 NegativeSelf-Arranged AS
ERCOT Needs to Procure on QSE5’s Behalf
Reg-Up
Reg-Up
Reg-Up
AS Offers
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This provision applies only to DAM; not
allowed in SASMs.
• Limited to -500 MW for each Ancillary Service
• Limited in magnitude to net AS Trades (compliance only)
Impact:ERCOT will charge the QSE for their share of the Ancillary Service Capacities procured in DAM.
A QSE may submit negative Self-Arranged AS Quantities:
DAM Settlements: Charge for ERCOT Procurement of AS
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DAM Settlements: Charge for ERCOT Procurement of AS
QSE3, QSE4, & QSE5 did not Self-Arrange entire AS Obligation for Responsive Reserve Service (RRS)
QSE4 AS Obligation (52 MW)
QSE3 AS Obligation(14 MW)
14 MWProcured
36 MWProcured
18 MWSelf-
Arranged
QSE5 AS Obligation(84 MW)
66 MWProcured
16 MWSelf-
Arranged
Trigger #2
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DAM Settlements: Charge for ERCOT Procurement of AS
• ERCOT needs to procure total of 116 MW of RRS
• ERCOT executes the DAM Clearing Process and procures additional AS from AS Offers
66 MWProcuredFor QSE 5
36 MWProcuredFor QSE 4
14 MWProcuredFor QSE 3
60 MWBlock Offer
38 MWBlock Offer
30 MWBlock Offer
Total RRS:• Total Quantity Needed = 116MW• Total Quantity Procured = 128MW• Total Cost = $512
Trigger #2
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DAM Settlements: Charge for ERCOT Procurement of AS
• ERCOT needs to procure total of 116 MW of RRS
• ERCOT executes the DAM Clearing Process and procures 128 MW RRS from AS Offers
(Price) * (Quantity)
• Charged per QSE• Settlement calculation:
Total Cost of RRS
Total RRS Needed(-1) *( ) QSE obligation
not Self-Arranged( )*
Trigger #2
Outcome #2
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Outcome #2
DAM Settlements: Charge for ERCOT Procurement of AS
QSE Price Quantity Procured on behalf of QSE
Total
QSE3 $4.41 / MW 14 MW $61.74
QSE4 $4.41 / MW 36 MW $158.76
QSE5 $4.41 / MW 66 MW $291.06
$512 / 116 MW
Total Cost of RRS
Total RRS Needed(-1) *( ) QSE obligation
not Self-Arranged( )*
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QSE314MW = 14MW – 0MW
QSE566MW = 84MW – 18MW
QSE436MW = 52MW – 16MW
Day-Ahead Market Ancillary Services Charges – Quantity
Responsive Reserve QuantityDARRQ q = DARRO q – DASARRQ q
DAMParticipation in DAM• Energy• AS• PTP Obligations
Day-Ahead Reg-Down QuantityDay-Ahead Reg-Down ObligationDay-Ahead Self-Arranged Reg-Down Quantity
Day-Ahead Non-Spin QuantityDay-Ahead Non-Spin ObligationDay-Ahead Self-Arranged Non-Spin Quantity
Determinants
Day-Ahead Reg-Up ObligationDay-Ahead Self-Arranged Reg-Up Quantity
Day-Ahead Resp Reserve QuantityDay-Ahead Resp Reserve ObligationDay-Ahead Self-Arranged Resp Reserve Quantity
Day-Ahead Reg-Up Quantity
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Day-Ahead Market Ancillary Services Charges – Quantity (continued)
q = QSE
Responsive Reserve QuantityDARRQ q = DARRO q – DASARRQ q
Regulation Down QuantityDARDQ q = DARDO q – DASARDQ q
Regulation Up QuantityDARUQ q = DARUO q – DASARUQ q
Non-Spinning Reserve QuantityDANSQ q = DANSO q – DASANSQ q
DAMParticipation in DAM• Energy• AS• PTP Obligations
Day-Ahead Reg-Down QuantityDay-Ahead Reg-Down ObligationDay-Ahead Self-Arranged Reg-Down Quantity
Day-Ahead Non-Spin QuantityDay-Ahead Non-Spin ObligationDay-Ahead Self-Arranged Non-Spin Quantity
Determinants
Day-Ahead Reg-Up ObligationDay-Ahead Self-Arranged Reg-Up Quantity
Day-Ahead Resp Reserve QuantityDay-Ahead Resp Reserve ObligationDay-Ahead Self-Arranged Resp Reserve Quantity
Day-Ahead Reg-Up Quantity
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DARRPR = (-1) * PCRRAMTTOT / DARRQTOT
$4.41/MW = (-1) * $-512 / 116 MW
Day-Ahead Market Ancillary Services Charges – Price (continued)
Responsive Reserve PriceDAM
Participation in DAM• Energy• AS• PTP Obligations
Day-Ahead Non-Spin Quantity Total
Day-Ahead Reg-Down Price
Day-Ahead Reg-Down Quantity Total
Procured Capacity for Non-Spin Amount TotalDay-Ahead Non-Spin Price
Determinants
Day-Ahead Reg-Up Price
Day-Ahead Reg-Up Quantity Total
Day-Ahead Responsive Reserve PriceProcured Capacity for Responsive Reserve
Amount TotalDay-Ahead Responsive Reserve Quantity Total
Procured Capacity for Reg-Down Amount Total
Procured Capacity for Reg-Up Amount Total
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DARRPR= (-1) * PCRRAMTTOT / DARRQTOT
Responsive Reserve Price
DARDPR= (-1) * PCRDAMTTOT / DARDQTOT
Regulation Down Price
DARUPR= (-1) * PCRUAMTTOT / DARUQTOT
Regulation Up Price
DANSPR= (-1) * PCNSAMTTOT / DANSQTOT
Non-Spinning Reserve Price
Day-Ahead Market Ancillary Services Charges – Price (continued)
Day-Ahead Non-Spin Quantity Total
Day-Ahead Reg-Down Price
Day-Ahead Reg-Down Quantity Total
Procured Capacity for Non-Spin Amount TotalDay-Ahead Non-Spin Price
Determinants
Day-Ahead Reg-Up Price
Day-Ahead Reg-Up Quantity Total
Day-Ahead Responsive Reserve PriceProcured Capacity for Responsive Reserve
Amount TotalDay-Ahead Responsive Reserve Quantity Total
Procured Capacity for Reg-Down Amount Total
Procured Capacity for Reg-Up Amount Total
DAMParticipation in DAM• Energy• AS• PTP Obligations
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DARRAMT q = DARRPR * DARRQ q
$61.74 QSE3 = $4.41/MW * 14MW QSE3
DAM Settlements: Charge for ERCOT Procurement of AS
Responsive Reserve Service ChargeDAM
Participation in DAM• Energy• AS• PTP Obligations
q = QSE
Day-Ahead Reg Down AmountDay-Ahead Reg Down PriceDay-Ahead Reg Down Quantity
Day-Ahead Responsive Reserve AmountDay-Ahead Responsive Reserve PriceDay-Ahead Responsive Reserve Quantity
Day-Ahead Non-Spinning Reserve AmountDay-Ahead Non-Spinning Reserve PriceDay-Ahead Non-Spinning Reserve Quantity
Determinants
Day-Ahead Reg Up PriceDay-Ahead Reg Up Quantity
Day-Ahead Reg Up Amount
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DAM Settlements: Charge for ERCOT Procurement of AS
DARDAMT q = DARDPR * DARDQ q
Regulation Down Service Charge
DARUAMT q = DARUPR * DARUQ q
Regulation Up Service Charge
DANSAMT q = DANSPR * DANSQ q
Non-Spinning Reserve Service Charge
q = QSE
DARRAMT q = DARRPR * DARRQ q
Responsive Reserve Service Charge
Day-Ahead Reg Down AmountDay-Ahead Reg Down PriceDay-Ahead Reg Down Quantity
Day-Ahead Responsive Reserve AmountDay-Ahead Responsive Reserve PriceDay-Ahead Responsive Reserve Quantity
Day-Ahead Non-Spinning Reserve AmountDay-Ahead Non-Spinning Reserve PriceDay-Ahead Non-Spinning Reserve Quantity
Determinants
Day-Ahead Reg Up PriceDay-Ahead Reg Up Quantity
Day-Ahead Reg Up Amount
DAMParticipation in DAM• Energy• AS• PTP Obligations
![Page 42: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/42.jpg)
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Day-Ahead Market Settlements
DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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Participation in the DAM: Outcomes
PTP Obligations Acquired in the Day-Ahead Market
DAMParticipation in DAM• Energy• AS• PTP Obligations
Charge to QSE for Awarded PTP Obligation Bid in DAM
Outcome #1
![Page 44: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/44.jpg)
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• Hedge against congestion costs in Real-Time
• Charge or payment when Grid is congested in Real-Time
Day-Ahead Market PTP Obligations
PTP Obligations Acquired in the Day-Ahead Market
![Page 45: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/45.jpg)
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PTP Obligations – The bigger picture
PTP Obligation (CRR) DAM PTP Obligation
How acquired: Auction / Allocation DAM
Who Purchases: CRR Account Holder QSE
Tradable: Yes No
How Purchased: TOU Blocks Hourly
Initial Investment: Auction clearing priceDay-Ahead SPPs
(Sink – Source)*
Target Payout:Day-Ahead SPPs
(Sink – Source)
Real-Time SPPs
(Sink – Source)
* Other DAM charges may apply
![Page 46: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/46.jpg)
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DAM Settlements: Charge for Purchased PTP Obligation
• QSE3 Bids to buy a PTP Obligation in the DAM
• Source and Sink of PTP Obligation• Not-to-Exceed Price ($ / MW / hr)• Quantity (MW)• Range of hours
Trigger #1
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DAM Settlements: Charge for Purchased PTP Obligation
• QSE3 Bids to buy a PTP Obligation in the DAM
• Not-to-Exceed Price = $26/MWh
• Quantity = 10 MW
• Source Resource Node 4 (RN4)
• Sink Load Zone 2 (LZ2)
• ERCOT executes the DAM Clearing Process
Trigger #1
![Page 48: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/48.jpg)
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DAM Settlements: Charge for Purchased PTP Obligation
• QSE3 Bids to buy a PTP Obligation in the DAM
• Not-to-Exceed Price = $26/MWh• Quantity = 10 MW• Source is Resource Node 4 (RN4) • Sink is Load Zone 2 (LZ2)
• ERCOT executes the DAM Clearing Process
PTP Obligation Price is $24/MWhERCOT awards QSE3 its PTP Obligation Bid
RN4 LZ2
$16/MWh $40/MWhDAM Prices:
Trigger #1
![Page 49: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/49.jpg)
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DAM Settlements: Charge for Purchased PTP Obligation
QSE3 purchased:
• 10 MW of PTP Obligation• Source Resource Node 4 (RN4) • Sink Load Zone 2 (LZ2)• Price of $24/MWh
(Price) * (Quantity)
• Settled hourly• Settlement calculation is:
($24/MWh) * (10 MW) = $240
(SPP at Sink – SPP at Source) * (Quantity)
Trigger #1
Outcome #1
![Page 50: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/50.jpg)
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Settlement for PTP Obligations Acquired in the DAM
DAM Settlements: Charge for Purchased PTP Obligation
DARTOBLAMT q, (j, k) = DAOBLPR (j, k) * RTOBL q, (j, k)
Day-Ahead Real-TimeObligation Amount
Determinants
q = QSEj = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Obligation PriceReal-Time Obligation
DAOBLPR (j, k) = DASPP k – DASPP j
Day-Ahead Settlement PointPrice
DAMParticipation in DAM• Energy• AS• PTP Obligations
![Page 51: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/51.jpg)
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• A NOIE (or their QSE) can buy PTP Obligations linked to PTP Options they own.
• Cash out PTP Options in DAM
• Buy like quantity of DAM PTP Obligations
• No charge in Real-time if price spread is negative
Special Product for NOIEs
DAM PTP Obligation Bids with Links to an Option
![Page 52: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/52.jpg)
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Settlement for DAM PTP Obligations with Links to Options
DAM Settlements: Charge for Purchased PTP Obligation
DARTOBLLOAMT q, (j, k) = Max (0, DAOBLPR (j, k)) * RTOBLLO q, (j, k)
Day-Ahead Real-TimeObligation with Links toan Option Amount
Determinants
q = QSEj = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Obligation Price
Real-Time Obligation with Links to an Option
DAOBLPR (j, k) = DASPP k – DASPP j
Day-Ahead Settlement PointPrice
DAMParticipation in DAM• Energy• AS• PTP Obligations
![Page 53: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/53.jpg)
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Day-Ahead Market Settlements
DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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Day-Ahead Make-Whole Payment
What: A payment to ensure generation costs are met when Resource is DAM-committed
Why:Guarantees that a DAM-committed Resource with a Three-Part Supply Offer recovers its allowable cost to Start-Up and its operating energy costs
Make-Whole Payment to DAM-Committed QSE with a Three-Part Supply Offer
Outcome #1
![Page 55: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/55.jpg)
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Calculating the Day-Ahead Make-Whole Payment
Day-Ahead Make-Whole Payment
$Incremental
Energy CostsMinimum
Energy Costs
Start-up Costs
Costs Incurred
![Page 56: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/56.jpg)
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Calculating the Day-Ahead Make-Whole Payment
Day-Ahead Make-Whole Payment
Day-AheadMarket Sales
$
Revenues Received
Incremental Energy Costs
Minimum Energy Costs
Start-up Costs
Costs Incurred
![Page 57: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/57.jpg)
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Calculating the Day-Ahead Make-Whole Payment
Day-Ahead Make-Whole Payment
Day-AheadMarket Sales
$Incremental
Energy CostsMinimum
Energy Costs
Start-up Costs
Day-Ahead Market Sales =DAM Energy Sales * SPP + AS Sales * MCPC
Costs IncurredRevenues Received
![Page 58: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/58.jpg)
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What if revenues are less than costs?
Day-Ahead Make-Whole Payment
Day-AheadMarket Sales
$Revenue Shortage
Incremental Energy Costs
Minimum Energy Costs
Start-up Costs
Revenues Received Costs Incurred
![Page 59: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/59.jpg)
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What if revenues are less than costs?
Day-Ahead Make-Whole Payment
Difference = Make-Whole Payment
Day-AheadMarket Sales
$Make-Whole Payment Incremental
Energy CostsMinimum
Energy Costs
Start-up Costs
Revenues Received Costs Incurred
![Page 60: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/60.jpg)
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Day-AheadMarket Sales
What if revenues are less than costs?
Day-Ahead Make-Whole Payment
$Make-Whole Payment
DAM Guaranteed Amount
Incremental Energy Costs
Minimum Energy Costs
Start-up Costs
Revenues Received Costs Incurred
![Page 61: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/61.jpg)
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Day-Ahead Make-Whole Payment
A QSE will receive a Make-Whole Payment if its revenues from the DAM are less than the Startup, Minimum Energy, and Operating costs
Trigger #1
DAM GuaranteedAmount( ) ( )DAM
Revenues <
![Page 62: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/62.jpg)
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Day-Ahead Make-Whole Payment
Trigger #1
DAM Guaranteed Amount( ) ( )DAM
Revenues <
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Calculate DAM Guaranteed Costs
Day-Ahead Make-Whole Payment
DAM Guaranteed Costs = ( )Startup costs
Minimum energy costs
Incremental Energy Costs
++
Startup Offer Minimum-Energy Offer Energy Offer Curve
$ to Start Up$/MWh at LSL
$/MWh Above LSL
![Page 64: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/64.jpg)
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• Minimum Energy Offer (MEO)
• Low Sustained Limit (LSL)
Calculate DAM Guaranteed Costs
Day-Ahead Make-Whole Payment
DAM Guaranteed Costs = ( )Startup costs
Minimum energy costs
Incremental Energy Costs
++
![Page 65: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/65.jpg)
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Startup Cap =Resource Category
Startup Offer Generic Cap
Minimum Energy Cap
=Resource Category
Minimum-Energy Generic Cap
Startup Cap =Verifiable Startup
Costs
Minimum Energy Cap
=Verifiable
Minimum-Energy Costs
Startup and Minimum Energy costs subject to caps
Day-Ahead Make-Whole Payment
If ERCOT has Verifiable Costs Otherwise
![Page 66: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/66.jpg)
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Day-Ahead Make-Whole Payment
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Calculate DAM Guaranteed Costs
Day-Ahead Make-Whole Payment
DAM Guaranteed Costs =
• Day-Ahead Average Incremental Energy Cost (DAAIEC)
( )Startup costs
Minimum energy costs
Incremental Energy Costs
++
![Page 68: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/68.jpg)
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Calculate Average Incremental Energy Cost (AIEC)
Calculate DAM Guaranteed Costs
Day-Ahead Make-Whole Payment
Energy Offer Curve
$/MWh
MWLSL
Calculates the additional cost for a Generation Resource to produce energy above its LSL
![Page 69: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/69.jpg)
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• LSL is the minimum sustained energy production
• DAESR is amount of energy that was cleared in the DAM
Average Incremental Energy Cost (AIEC)
Day-Ahead Make-Whole Payment
$/MWh
MW
DAESRLSL
Determinants
Low Sustained LimitDay-Ahead Energy Sale
from Resource
![Page 70: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/70.jpg)
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Average Incremental Energy Cost (AIEC)
Day-Ahead Make-Whole Payment
$/MWh
MW
DAESRLSL
The area under the curve divided by the energy cleared above LSL gives the average cost per MWh for that energy.
DAESR - LSL
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Average Incremental Energy Cost (AIEC)
Day-Ahead Make-Whole Payment
For calculating Make-Whole, the curve is capped by the Day-Ahead Energy Offer Curve Price Cap (DAEOCPRCAP)
The cap is defined in the Protocols by technology type.
DAEOCPRCAP
$/MWh
MW
DAESRLSL
DAESR - LSL
![Page 72: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/72.jpg)
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Average Incremental Energy Cost (AIEC)
Day-Ahead Make-Whole Payment
AIEC = Area under curve(DAESR-LSL)
$/MWh
MW
DAESRLSL
DAEOCPRCAP
Average cost for supplying energy from the LSL to the DAESR for the hour
DAESR - LSL
![Page 73: Module 3 Day-Ahead Market - Electric Reliability Council ...• Describe the Day -Ahead Market and its related settlements. • Identify the actions that impact DAM Settlements. •](https://reader033.fdocuments.net/reader033/viewer/2022041711/5e4805930eb6c008857d8f1c/html5/thumbnails/73.jpg)
74DAESR - LSL
AIEC-AREA
Average Incremental Energy Cost (AIEC)
Day-Ahead Make-Whole Payment
DAESCLPR$/MWh
MW
DAESRLSL
DAEOCPRCAP
DAEOCQTYCAP
DeterminantsLow Sustained Limit
Day-Ahead Energy SaleClearing Price
Day-Ahead Energy Salefrom Resource
Day-Ahead Energy OfferCurve Quantity Cap
Day-Ahead Energy OfferCurve Price Cap
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QSE1’s Resource is committed for 4 hours
• Awarded 50 MW per hour
• Low Sustained Limit is 10MW
• From Three-Part Supply Offer
• Startup Offer = $5000• Minimum Energy Offer = $10/MWh• AIEC = $20/MWh
• Startup Cap = $4,400
• Minimum Energy Cap = $12/MWh
Day-Ahead Make-Whole Payment
DAM Guaranteed Amount( ) ( )DAM
Revenues
Trigger #1 <
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Day-Ahead Make-Whole Payment
Startup Offer (DASUO) and Cap (DASUCAP)
Minimum Energy Offer (DAMEO) and Cap (DAMECAP)
Low Sustained Limit (DALSL)
Day-Ahead AIEC (DAAIEC)
Day-Ahead Energy Sales (DAESR)
DAMGCOSTq, p, r = Min(DASUOq, p, r , DASUCAPq, p, r )+ ∑(Min(DAMEOq, p, r, h , DAMECAPq, p, r, h ) * DALSLq, p, r, h ) + ∑(DAAIECq, p, r, h * (DAESRq, p, r, h – DALSLq, p, r, h ))
DAM Guaranteed Amount( ) ( )DAM
Revenues
Trigger #1 <
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Day-Ahead Make-Whole Payment
DAMGCOST = Min ( DASUO, DASUCAP )+ ∑( Min ( DAMEO, DAMECAP ) * DALSL ) + ∑( DAAIEC * ( DAESR – DALSL ))
DAMGCOST = Min ( $5000, $4400 )+ ( Min ( $10/MWh, $12/MWh ) * 10MW ) * 4h+ ($20/MWh * (50MW –10MW )) * 4h
= $4400 + $400 + $3200
= $8000
DAM Guaranteed Amount( ) ( )DAM
Revenues
Trigger #1 <
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Day-Ahead Make-Whole Payment
Startup Offer (DASUO) and Cap (DASUCAP)
Minimum Energy Offer (DAMEO) and Cap (DAMECAP)
Low Sustained Limit (DALSL)
Day-Ahead AIEC (DAAIEC)
Day-Ahead Energy Sales (DAESR)
DAMGCOSTq, p, r = Min(DASUOq, p, r , DASUCAPq, p, r )+ ∑(Min(DAMEOq, p, r, h , DAMECAPq, p, r, h ) * DALSLq, p, r, h ) + ∑(DAAIECq, p, r, h * (DAESRq, p, r, h – DALSLq, p, r, h ))
DAM Guaranteed Amount( ) ( )<DAM
Revenues
Trigger #1
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Day-Ahead Make-Whole Payment
$8000
Revenues from Energy
Revenues from Ancillary Services
+
( )DAM Revenues )(Trigger
#1 <
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80
Day-Ahead Make-Whole Payment
Energy Revenues for Hour 1
Revenues = (-1) * (Price) * (Quantity)
DAEREV = (-1) * DASPP * DAESR= (-1) * $30/MWh * 50 MW= -$1500
$8000 )(( )DAM Revenues
Trigger #1 <
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Day-Ahead Make-Whole Payment
Revenues = (-1) * (Price) * (Quantity)
Ancillary Services Revenues for Hour 1
DAASREV q, r, h =((-1) * MCPCRU DAM, h * PCRUR r, q, DAM, h)
+ ((-1) * MCPCRD DAM, h * PCRDR r, q,DAM, h) + ((-1) * MCPCRR DAM, h * PCRRR r, q,DAM, h) + ((-1) * MCPCNS DAM, h * PCNSR r, q,DAM, h)
-$180 q, r, h =((-1) * $5/MW * 10 MW ) + ((-1) * $5/MW * 10 MW) + ((-1) * $10/MW * 5 MW) + ((-1) * $15/MW * 2 MW)
$8000 )(( )DAM Revenues
Trigger #1 <
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DAM Revenues = DAEREV + DAASREV
Day-Ahead Make-Whole Payment
$7000
DAEREV DAASREV
Hour 1 -$1500 -$180
Hour 2 -$1500 -$220
Hour 3 -$1500 -$250
Hour 4 -$1500 -$350
Total for Commitment -$6000 -$1000
$8000 )(( )Trigger #1 <
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DAM Revenues = DAEREV + DAASREV
Day-Ahead Make-Whole Payment
$7000
DAEREV DAASREV
Hour 1 -$1500 -$180
Hour 2 -$1500 -$220
Hour 3 -$1500 -$250
Hour 4 -$1500 -$350
Total for Commitment -$6000 -$1000
$8000 )(<( )Trigger #1
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84
Day-Ahead Make-Whole Payment
• DAM Revenues are less than DAM Guaranteed Costs for QSE1 unit 5
• QSE1 eligible for DAM Make-Whole Payment
$7000 $8000 )(( )Trigger #1
Outcome #1
<
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85
Day-Ahead Make-Whole Payment
DAMWAMT q, p, r, h =
(-1) * Max (0, DAMGCOSTq, p, r + ∑ DAEREVq, p, r, h + ∑ DAASREVq, r, h)
* (DAESR q, p, r, h / ∑ DAESR q, p, r, h)
DAM Make-Whole Payment for each hour
$7000 $8000 )(( )Trigger #1
Outcome #1
<
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86
Day-Ahead Make-Whole Payment
DAMWAMT = (-1) * Max (0, $8000 + $-6000 + $-1000)* 50 MW / (200 MW)
= (-1) * Max (0, $1000) * 0.25 = -$250
DAM Make-Whole Payment for each hour
$7000 $8000 )(( )Trigger #1
Outcome #1
<
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DAM may start any offered CCGR and transition from one
offered CCGR to another
• Make-Whole is paid at the Train level
• DAM Guaranteed Amount
• Start-up Costs• Minimum and Incremental Energy Costs• May include Transition Costs
What if the DAM-committed Resource is part of a Combined Cycle Plant?
Day-Ahead Make Whole - Combined Cycle Resources
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88
Day-Ahead Make Whole - Combined Cycle Resources
CCGR 1
CCGR 2
Combined Cycle Plant
Train 1 Train 2
ST1 CT1 CT2 CT3 ST2 CT4 CT5 CT6
DAM Guaranteed Amount may include Transition Cost from
CCGR1 to CCGR2
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Day-Ahead Make Whole - Combined Cycle Resources
DAMGCOSTq, p, r = Min(DASUOq, p, r , DASUCAPq, p, r ) + ∑(Min(DAMEOq, p, r, h , DAMECAPq, p, r, h ) * DALSLq, p, r, h )+ ∑(DAAIECq, p, r, h * (DAESRq, p, r, h – DALSLq, p, r, h ))
+ Transition Cost
Startup Offer (DASUO) and Cap (DASUCAP)
Minimum Energy Offer (DAMEO) and Cap (DAMECAP)
Low Sustained Limit (DALSL)
Day-Ahead AIEC (DAAIEC)
Day-Ahead Energy Sales (DAESR)
DAM Guaranteed Amount( ) ( )DAM
Revenues
Trigger #1 <
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Day-Ahead Make Whole – Transition Cost
Transition Cost = Max(0, Min(DASUOafterCCGR , DASUCAPafterCCGR) – Min(DASUObeforeCCGR , DASUCAPbeforeCCGR))
afterCCGR: The CCGR to which a Combined Cycle Train transitions
beforeCCGR: The CCGR from which a Combined Cycle Train transitions
( )DAM Revenues
Trigger #1
DAM Guaranteed Amount) ( )<
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In a small group, respond to the questions that relate to Scenario #DAM1.
You have 5 – 10 minutes to complete your questions.
Refer to your Settlements Workbook
Activity: Now it’s your turn!
If you cannot complete all questions, don’t worry – all questions will be reviewed as a class.
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DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Day-Ahead Market Settlements
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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What: Charge to collect all funds needed for the Make-Whole Payment
Why: Keep ERCOT revenue neutral
Day-Ahead Make-Whole Charge
Make-Whole Charge to a QSE with one or more cleared DAM Energy Bids and/or PTP Obligation Bids
Outcome #1
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94
Day-Ahead Make-Whole Charge
Total DAM Make-Whole Payments ERCOT-Wide *( ) ( )DAM Energy Purchase
Ratio Share
=( )A QSE’s DAM Energy Purchase
Total DAM Energy Purchases ERCOT - Wide
DAMDAM Commitment• Make-Whole
DAM Energy Purchase Ratio Share
Where…
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• QSE3 has a cleared Energy Bid from DAM
• Purchased 50 MW in the DAM
• ERCOT-Wide total energy purchases in the DAM:
• 500 MW
Day-Ahead Make-Whole Charge
Trigger #1
Outcome #1
= (-1) * Total DAM
Make-Whole Payments( ) QSE’s DAM Energy Purchase
Total DAM Energy Purchases( )Make-Whole Charge *
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= (-1) * (-$250) * 50MW / 500MW = (-1) * (-$250) * .10 = $25
Day-Ahead Make-Whole Charge
• QSE3 has a cleared Energy Bid from DAM
• Purchased 50 MW in the DAM
• ERCOT-Wide total energy purchases in the DAM:
• 500 MW
Trigger #1
Outcome #1
Make-Whole Charge
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LADAMWAMTq = (-1) * DAMWAMTTOT * DAERS q
Day-Ahead Energy PurchaseRatio Share
Day-Ahead Make-Whole Charge
Determinants
q = QSE
Load Allocated Day-Ahead Make-Whole Amount
Day-Ahead Make-Whole Amount Total
= (-1) * Total DAM
Make-Whole Payments( ) QSE’s DAM Energy Purchase
Total DAM Energy Purchases( )Make-Whole Charge
DAMDAM Commitment• Make-Whole
*
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Day-Ahead Market Settlements
Settlement of CRRs in the DAM
CRR Auction• Charges and
Payments for CRRs
• Revenue Distribution
DAM
DAM Commitment
• Make-Whole
Settlement of CRRs in the DAM
Participation in DAM
• Energy• Ancillary Services• PTP Obligations
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99
Or their payments may be reduced:
• Derations
• CRR Shortfall Charges
CRR owners may be paid according to their “target” payment.
Slide 99
Settling CRRs in the DAM
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Target Payment = Price * Quantity
CRRs will be settled at the Target Payment when not derated
Target Payment
Settling CRRs in the DAM
DAMSettlement of CRRs in the DAM
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Due to oversold transmission elements, a CRR payment may be derated:
• If sink or source is a Resource Node
• If the Target Payment is apositive value.
Deration of CRRs
Settling CRRs in the DAM
DAMSettlement of CRRs in the DAM
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Deration is based on impact of Resource Node on constraints
Resource Node
Constraint
Minimal impact Minimal deration
ConstraintResource Node
Significant impact Significant deration
Deration of CRRs
Settling CRRs in the DAM
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Deration of CRRs
Settling CRRs in the DAM
Day-Ahead Network Operations Model
• Developed from the Network Model
• Developed daily
• Reflects forecasted transmission system for the next day
• Updated with scheduled outages and forecasted system conditions
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Deration of CRRs
Settling CRRs in the DAM
Day-Ahead Network Operations Model
• Developed from the Network Model
Prior to Day-Ahead Market
Day-Ahead Simultaneous
Feasibility Test
• Executed daily
• Verifies feasibility of CRRs sold in Auction
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Deration of CRRs
Settling CRRs in the DAM
Day-Ahead Network Operations Model
• Developed from the Network Model
Transmission elements not oversold
• Account Holders receive Target Payment
Transmission elements oversold
• Account Holders receive reduced payment
Prior to Day-Ahead Market
Day-Ahead Simultaneous
Feasibility Test
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(-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
Hedge Value
Target Payment
Target Payment –
Derated Amount
Derated Payment
Settling CRRs in the DAM
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• Derating CRRs Reduces Gaming Opportunity
• Hedge Value maintains value of CRR as Hedge
• Minimum Resource Price
• Maximum Resource Price
Derated Payment and Hedge Value
Settling CRRs in the DAM
Source j Sink k
Resource Node
CRR
Resource Node
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Source j Sink k
Resource Node
Load Zone or
Hub
RESOURCE TYPE MINRESPRJ MAXRESPRK
Nuclear -$20/MWh $15/MWhCoal 0 $18/MWhSimple Cycle > 90MW FIP*10 FIP*14Combined Cycle > 90MW FIP*5 FIP*9Wind -$35/MWh 0
CRR
HV PRICE (j, k) = Max (0, DASPP k – MINRESPR j)
Hedge Value Price
Hedge Value
Settling CRRs in the DAM
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Sink k Source j
Resource Node
Load Zone or
Hub
RESOURCE TYPE MINRESPRJ MAXRESPRK
Nuclear -$20/MWh $15/MWhCoal 0 $18/MWhSimple Cycle > 90MW FIP*10 FIP*14Combined Cycle > 90MW FIP*5 FIP*9Wind -$35/MWh 0
CRR
Hedge Value Price
Hedge Value
Settling CRRs in the DAM
HV PRICE (j, k) = Max (0, MAXRESPR K - DASPP J)
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Source j Sink k
Resource Node
CRR
Resource Node
RESOURCE TYPE MINRESPRJ MAXRESPRK
Nuclear -$20/MWh $15/MWhCoal 0 $18/MWhSimple Cycle > 90MW FIP*10 FIP*14Combined Cycle > 90MW FIP*5 FIP*9Wind -$35/MWh 0
Hedge Value Price
Hedge Value
Settling CRRs in the DAM
HV PRICE (j, k) = Max (0, MAXRESPR k – MINRESPR j)
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CRRs Settled in the DAM
Settlement of Congestion Revenue Rights
Payment to CRR AHs for settled PTP Options in the DAM
Outcome #2
Payment or Charge to CRR AHs for PTP Obligations settled in the DAM
Outcome #1
DAMSettlement of CRRs in the DAM
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• CRRH5 was awarded PTP Obligations in the CRR Auction
Settlement of PTP Obligations
Trigger #1
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o = CRR Owner
Target Payment for PTP Obligations
Settlement of PTP Obligations
Determinants
DAOBLTP o, (j, k) = DAOBLPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
DAOBLPR (j, k) = DASPP k – DASPP j
j = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Obligation Price
Day-Ahead ObligationTarget Payment
Day-Ahead Obligation Quantity
Day-Ahead Settlement PointPrice
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Target Payment
Settlement of PTP Obligations
Determinants
Day-Ahead Obligation Amount
Day-Ahead ObligationTarget Payment
o = CRR Owner
j = Source Settlement Point
k = Sink Settlement Point
DAOBLAMT o, (j, k) = (-1) * DAOBLTP o, (j, k)
When either • Target Payment less than zero, or • No Resource Node
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• CRRH5 was awarded PTP Obligations in the CRR Auction
• Quantity: 10 MW• Source : Resource Node 4
• $20/MWh• Sink: Load Zone 3
• $30/MWh• Price: $10/MWh
Settlement of PTP Obligations
Target Payment = Price * Quantity
Target Payment = $10/MWh * 10 MW
= $100 per hour
Trigger #1
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Derated Payment
Settlement of PTP Obligations
Hedge Value
Target Payment
Target Payment –
Derated Amount
(-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
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o = CRR Owner
Derated Amount of PTP Obligations
Settlement of PTP Obligations
Determinants
DAOBLDA o, (j, k) = OBLDRPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
OBLDRPR (j, k) = (Max (0, DAWASF j, c –
DAWASF k, c) * DASP c * DRF c)
c = A constraint
j = Source Settlement Point
k = Sink Settlement Point
Day-Ahead ObligationDerated Amount
Obligation Deration Price
Day-Ahead Obligation Quantity
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
∑c
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Derated Amount of PTP Obligations
Settlement of PTP Obligations
OBLDRPR = $0.75/ MW per hour
DAOBLDA = OBLDRPR * DAOBL
= $0.75/MW * 10 MW
= $7.50
DAOBLDA o, (j, k) = OBLDRPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
Determinants
Day-Ahead ObligationDerated Amount
Obligation Deration Price
Day-Ahead Obligation Quantity
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
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Hedge Value for PTP Obligations
Settlement of PTP Obligations
Determinants
Day-Ahead Obligation Quantity
Day-Ahead Settlement PointPrice
Day-Ahead ObligationHedge Value
Day-Ahead ObligationHedge Value Price
DAOBLHVPR (j, k) = Max (0, DASPP k –MINRESPR j)
DAOBLHV o, (j, k) = DAOBLHVPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
Minimum Resource PriceSource j Sink k
Resource Node
Load Zone Or
Hub
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Hedge Value for PTP Obligations
Settlement of PTP Obligations
DAOBLHVPR = Max (0, $30 – $15)= $15/MWh
Resource is Combined Cycle > 90MW
FIP = $3
DAOBLHV o, (j, k) = DAOBLHVPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
Determinants
Day-Ahead Obligation Quantity
Day-Ahead Settlement PointPrice
Day-Ahead ObligationHedge Value
Day-Ahead ObligationHedge Value Price
Minimum Resource Price
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Hedge Value for PTP Obligations
Settlement of PTP Obligations
DAOBLHV = DAOBLHVPR * DAOBL
= $15/MWh * 10 MW
= $150 per hour
DAOBLHV o, (j, k) = DAOBLHVPR (j, k) (Price) * DAOBL o, (j, k) (Quantity)
Determinants
Day-Ahead Obligation Quantity
Day-Ahead Settlement PointPrice
Day-Ahead ObligationHedge Value
Day-Ahead ObligationHedge Value Price
Minimum Resource Price
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Settlement of PTP Obligations
DAOBLAMT = (-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
Hedge Value
Target Payment
Target Payment –
Derated Amount
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Settlement of PTP Obligations
DAOBLAMT = (-1) * Max( )(DAOBLTP o, (j, k) – DAOBLDA o, (j, k) ) or
Min (DAOBLTP o, (j, k) or DAOBLHV o, (j, k) )
Hedge Value
Target Payment
Target Payment –
Derated Amount
Outcome #1
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Settlement of PTP Obligations
DAOBLAMT = (-1) * Max( )($100 – $7.50) or
Min ($100 or $150)= -$100
Hedge Value
Target Payment –
Derated Amount
$150
$100
$92.50
Target Payment
Outcome #1
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CRRs Settled in the DAM
Settlement of Congestion Revenue Rights
Payment to CRR AHs for settled PTP Options in the DAM
Outcome #2
Payment or Charge to CRR AHs for PTP Obligations settled in the DAM
Outcome #1
DAMSettlement of CRRs in the DAM
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• CRRH5 was also awarded PTP Options in the CRR Auction
Settlement of PTP Options
Trigger #2
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o = CRR Owner
Target Payment for PTP Options
Settlement of PTP Options
Determinants
DAOPTTP o, (j, k) = DAOPTPR (j, k) (Price) * OPT o, (j, k) (Quantity)
DAOPTPR (j, k) = Max (0, DASPPk – DASPPj)
j = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Option Price
Day-Ahead OptionTarget Payment
Option Quantity
Day-Ahead SettlementPoint Price
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Target Payment
Settlement of PTP Options
Determinants
Day-Ahead Option AmountDay-Ahead OptionTarget Payment
o = CRR Owner
j = Source Settlement Point
k = Sink Settlement Point
DAOPTAMT o, (j, k) = (-1) * DAOPTTP o, (j, k)
When no Resource Node,
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• CRRH5 was awarded PTP Options in the CRR Auction
• Quantity: 10 MW• Source: Resource Node 1
• $10/MWh• Sink: Load Zone 3
• $30/MWh• Price: $20/MWh
Settlement of PTP Options
Target Payment = Price * Quantity
Target Payment = $20/MWh * 10 MW
= $200 per hour
Trigger #2
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Derated Payment
Settlement of PTP Options
(-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
Hedge Value
Target Payment
Target Payment –
Derated Amount
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Derated Amount of PTP Options
Settlement of PTP Options
Determinants
DAOPTDA o, (j, k) = OPTDRPR (j, k) (Price) * OPT o, (j, k) (Quantity)
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
Day-Ahead Option DeratedAmount
Option Deration Price
Option Quantity
o = CRR Owner
c = A constraint
j = Source Settlement Point
k = Sink Settlement Point
OPTDRPR (j, k) = (Max (0, DAWASF j, c –
DAWASF k, c) * DASP c * DRF c)
∑c
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Derated Amount of PTP Options
Settlement of PTP Options
OPTDRPR = $2.50/ MW per hour
DAOPTDA = OPTDRPR * OPT
= $2.50/MW * 10 MW
= $25
Determinants
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
Day-Ahead Option DeratedAmount
Option Deration Price
Option Quantity
DAOPTDA o, (j, k) = OPTDRPR (j, k) (Price) * OPT o, (j, k) (Quantity)
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Hedge Value for PTP Options
Settlement of PTP Options
Determinants
Source j Sink k
Resource Node
Load Zone or
Hub
DAOPTHVPR (j, k) = Max (0, DASPP k –MINRESPR j)
Option Quantity
Day-Ahead Settlement PointPrice
Day-Ahead Option HedgeValue
Day-Ahead Option HedgeValue Price
DAOPTHV o, (j, k) = DAOPTHVPR (j, k) (Price) * OPT o, (j, k) (Quantity)
Minimum Resource Price
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Hedge Value for PTP Options
Settlement of PTP Options
DAOPTHVPR = Max (0, $30 – $15)= $15/MWh
DAOPTHV o, (j, k) = DAOPTHVPR (j, k) (Price) * OPT o, (j, k) (Quantity)
Resource is Combined Cycle > 90MW
FIP = $3
Determinants
Option Quantity
Day-Ahead Settlement PointPrice
Day-Ahead Option HedgeValue
Day-Ahead Option HedgeValue Price
Minimum Resource Price
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Hedge Value for PTP Options
Settlement of PTP Options
DAOPTHV = DAOPTHVPR * OPT = $15/MWh * 10MW= $150 per hour
DAOPTHV o, (j, k) = DAOPTHVPR (j, k) (Price) * OPT o, (j, k) (Quantity)
Determinants
Option Quantity
Day-Ahead Settlement PointPrice
Day-Ahead Option HedgeValue
Day-Ahead Option HedgeValue Price
Minimum Resource Price
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Settlement of PTP Options
DAOPTAMT = (-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
Hedge Value
Target Payment
Target Payment –
Derated Amount
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Settlement of PTP Options
DAOPTAMT = (-1) * Max( )(DAOPTTP o, (j, k) – DAOPTDA o, (j, k) ) or
Min (DAOPTTP o, (j, k) or DAOPTHV o, (j, k) )
Outcome #1
Hedge Value
Target Payment
Target Payment –
Derated Amount
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Settlement of PTP Options
DAOPTAMT = (-1) * Max( )($200 – $25) or
Min ($200 or $150)= -$175
Hedge Value
Target Payment –
Derated Amount$150
$200
$175
Target Payment
Outcome #1
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In a small group, respond to the questions that relate to Scenario #DAM2.
You have 5 – 10 minutes to complete your questions.
Refer to your Settlements Workbook
Activity: Now it’s your turn!
If you cannot complete all questions, don’t worry – all questions will be reviewed as a class.
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PCRRs Settled in the DAM
Settlement of Pre-Assigned Congestion Revenue Rights
Payment to CRR AHs for settled PTP Options with Refund
Payment to CRR AHs for settled PTP Options with Refund
Outcome #2
Payment or Charge to CRR AHs for settled PTP Obligations with Refund
Outcome #1
DAMSettlement of CRRs in the DAM
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The Quantity depends on the Resource output in Real-Time
Settlement of PCRRs with Refund
Price Quantity(Lesser of)
DAM PCRR Price between Source and
Sink
PCRR Quantity Held by the NOIE
Resource Real-Time Output based on its Output Schedules
DAMSettlement of CRRs in the DAM
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Price Quantity(Lesser of)
DAM PCRR Price between Source and
Sink
PCRR Quantity Held by the NOIE
Resource Real Time Output based on its Output Schedules
The Option Quantity depends on the Resource output in Real-Time
Settlement of PCRRs with Refund
DAMSettlement of CRRs in the DAM
If no Output Schedule is available, ERCOT will use the time-weighted generation for the hour.
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For Example
Settlement of PCRRs with Refund
Price Obligation Quantity(Lesser of)
$50/MWh
100 MW PTP Obligation Quantity Held by the NOIE
90 MW Resource Real-Time Output based on its Output Schedules
PTP Obligation w/Refund Payment
$50/MWh x 90MW = $4500/h
DAMSettlement of CRRs in the DAM
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• CRRH4 was allocated PTP Obligations with Refunds
Settlement of PTP Obligations with Refund
Trigger #1
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Target Payment
Settlement of PTP Obligations with Refund
Determinants
o = CRR Owner
j = Source Settlement Point
k = Sink Settlement Point
DAOBLRAMT o, (j, k) = (-1) * DAOBLRTP o, (j, k)
Day-Ahead Obligation with Refund Amount
Day-Ahead Obligation with Refund Target Payment
When either • Target Payment less than zero, or • No Resource Node
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Derated Payment
Settlement of PTP Obligations with Refund
Hedge Value
Target Payment
Target Payment –
Derated Amount
DAOBLRAMT = (-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
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o = CRR Owner
Target Payment for PTP Obligations with Refund
Settlement of PTP Obligations with Refund
DAOBLRTP o, (j, k) = DAOBLPR (j, k) * Min (DAOBLR o, (j, k), OBLRACT o, (j, k))
j = Source Settlement Point
k = Sink Settlement Point
Quantity = Lesser of (Obligations held or Actual Obligations used)
Determinants
Day-Ahead Obligation Price
Day-Ahead Obligation with Refund Quantity
Day-Ahead Settlement PointPrice
Day-Ahead Obligation with Refund Target Payment
Obligation with Refund Actual Usage
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Derated Amount of PTP Obligations with Refund
Settlement of PTP Obligations with Refund
o = CRR Owner
Determinants
DAOBLRDA o, (j, k) = OBLDRPR (j, k) * Min (DAOBLR o, (j, k), OBLRACT o, (j, k))
OBLDRPR (j, k) = (Max (0, DAWASF j, c –
DAWASF k, c) * DASP c * DRF c)
c = A constraint
j = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Obligation with Refund Derated AmountObligation Deration Price
Day-Ahead Obligation with Refund Quantity
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
∑c
Obligation with Refund Actual Usage
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Hedge Value for PTP Obligations with Refund
Settlement of PTP Obligations with Refund
Determinants
Day-Ahead Settlement PointPrice
Day-Ahead Obligation with Refund Hedge ValueDay-Ahead Obligation
Hedge Value Price
DAOBLHVPR (j, k) = Max (0, DASPP k –MINRESPR j)
DAOBLRHVo, (j, k) = DAOBLHVPR(j, k) * Min (DAOBLRo, (j, k), OBLRACTo, (j, k))
Minimum Resource PriceSource j Sink k
Resource Node
Load Zone
Day-Ahead Obligation with Refund QuantityObligation with Refund
Actual Usage
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PCRRs Settled in the DAM
Settlement of Pre-Assigned Congestion Revenue Rights
Payment to CRR AHs for settled PTP Options with Refund
Outcome #2
Payment or Charge to CRR AHs for settled PTP Obligations with Refund
Outcome #1
DAMSettlement of CRRs in the DAM
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• CRRH4 was allocated PTP Options with Refund
Settlement of PTP Options with Refund
Trigger #2
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Target or Derated Payment
Settlement of PTP Options with Refund
Hedge Value
Target Payment
Target Payment –
Derated Amount
DAOPTRAMT = (-1) * Max( )(Target Payment – Derated Amount) or
Min (Target Payment or Hedge Value)
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o = CRR Owner
Target Payment for PTP Options with Refund
Settlement of PTP Options with Refund
DAOPTRTP o, (j, k) = DAOPTPR (j, k) * Min (OPTR o, (j, k), OPTRACT o, (j, k))
j = Source Settlement Point
k = Sink Settlement Point
Determinants
Day-Ahead Option Price
Day-Ahead Option with Refund Target Payment
Quantity = Lesser of (Options held or Actual Options used)
Option with Refund Actual Usage
Option with Refund Quantity
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Derated Amount of PTP Options with Refund
Settlement of PTP Options with Refund
o = CRR Owner
Determinants
DAOPTRDA o, (j, k) = OPTDRPR (j, k) * Min (OPTR o, (j, k), OPTRACT o, (j, k))
OPTDRPR (j, k) = (Max (0, DAWASF j, c –
DAWASF k, c) * DASP c * DRF c)
c = A constraint
j = Source Settlement Point
k = Sink Settlement Point
Day-Ahead Option with Refund Derated AmountOption Deration Price
Day-Ahead Weighted Average Shift Factor
Day-Ahead Shadow Price
Deration Factor
∑c
Option with Refund Actual Usage
Option with Refund Quantity
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Hedge Value for PTP Option with Refund
Settlement of PTP Options with Refund
Determinants
Day-Ahead Settlement PointPrice
Day-Ahead Option with Refund Hedge ValueDay-Ahead Option HedgeValue Price
DAOPTHVPR (j, k) = Max (0, DASPP k –MINRESPR j)
DAOPTRHVo, (j, k) = DAOPTHVPR(j, k) * Min (OPTR o, (j, k), OPTRACT o, (j, k))
Minimum Resource PriceSource j Sink k
Resource Node
Load Zone
Option with Refund Actual Usage
Option with Refund Quantity
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Charge to CRR AHs when there are insufficient funds to settle CRRs in the DAM
Outcome #1
Shortfall Charge for CRRs Settled in Day-Ahead
What: Charge to CRR Account Holders based on a Credit Share Ratio
Why:Congestion Rent collected in the DAM may not be adequate to pay the amount due to CRR Owners in the DAM
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Payment due to CRR Account Holders(Target Payment)
Target Payment of CRRs Settled in the Day-Ahead
Shortfall Charge for CRRs Settled in Day-Ahead
Occurs hourly
• Charges for Cleared DAM Energy Bids
• Charges for Cleared DAM PTP Obligation Bids
• Payments for Cleared DAM Energy Offers
• Payments for Cleared DAM PTP Obligation Bids
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Payment due to CRR Account Holders(Target Payment)
( )CRR OwnerTarget
Payment
Total CRR Target Payments
for hour/
• Insufficient funds collected to pay CRR Account Holders
Shortfall Charge for CRRs Settled in Day-Ahead
*( )Total CRR Shortfall
Day-Ahead Shortfall Charge =
Trigger #1
Outcome #1
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Shortfall Charge for CRRs Settled in Day-Ahead - Activity
Hour Ending 1300Total CRR Target Payment $20 Million
Congestion Rent Collected $19 Million
CRR Shortfall for the hour $1 Million
CRR Owner’s Target Payment $2 Million
CRR Owner’s Credit Ratio Share 0.1
CRR Owner’s Shortfall Charge $100,000
?
??
( )CRR OwnerTarget
Payment
Total CRR Target Payments
for hour/*( )Total CRR Shortfall
Day-Ahead Shortfall Charge =
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Day-Ahead CRR Shortfall Amount
Shortfall Charge for CRRs Settled in Day-Ahead
DeterminantsDay-Ahead CRR ShortAmount
CRR Credit Ratio ShareDay-Ahead
DACRRSAMTo = DACRRSAMTTOT * CRRCRRSDAo
DACRRSAMTTOT = (-1) * Min (0, (DACONGRENT+ DACRRCRTOT + DACRRCHTOT))
Day-Ahead CRR ShortAmount Total
Payment due to CRR Account Holders(Target Payment)
o = CRR Owner
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Day-Ahead Congestion Rent
Shortfall Charge for CRRs Settled in Day-Ahead
DACONGRENT = DAESAMTTOT + DAEPAMTTOT + DARTOBLAMTTOT + DARTOBLLOAMTTOT
DACONGRENTDAESAMTTOT Day-Ahead Energy Sale Amount Total
DAEPAMTTOTDay-Ahead Energy Purchase Amount Total
DARTOBLAMTTOTDay-Ahead Real-Time Obligation Amount Total
DARTOBLLOAMTTOTDay-Ahead Real-Time Obligation with Links to an Option Amount Total
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Payment due to CRR Account Holders (Target Payment)
Shortfall Charge for CRRs Settled in Day-Ahead
DACRRCHTOT
DAOBLCHTOTDay-Ahead Obligation Charge Total
DAOBLRCHTOTDay-Ahead Obligation with Refund Charge Total
DACRRCRTOT
DAOBLCRTOT Day-Ahead Obligation Credit Total
DAOBLRCRTOT Day-Ahead Obligation with Refund Credit Total
DAOPTAMTTOT Day-Ahead Option Amount Total
DAOPTRAMTTOT Day-Ahead Option with Refund Amount Total
Charges + PaymentsDACRRCHTOT + DACRRCRTOT
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Day-Ahead CRR Shortfall Amount
Shortfall Charge for CRRs Settled in Day-Ahead
DeterminantsDay-Ahead CRR ShortAmount
CRR Credit Ratio ShareDay-Ahead
DACRRSAMTo = DACRRSAMTTOT * CRRCRRSDAo
CRRCRRSDAo = Target Payment per CRR OwnerTotal CRR Payments for hour
Day-Ahead CRR ShortAmount Total
o = CRR Owner
( )
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CRR Credit Ratio Share (Day-Ahead)
Shortfall Charge for CRRs Settled in Day-Ahead
Total CRR Payments
DACRRCRTOTDay-Ahead CRR Credit Total
Target Payment per CRR Owner
DAOBLCROTOT Day-Ahead Obligation Credit Total
DAOBLRCROTOT Day-Ahead Obligation with Refund Credit Total
DAOPTAMTOTOT Day-Ahead Option Amount Total
DAOPTRAMTOTOT Day-Ahead Option with Refund Amount Total
CRRCRRSDAo = Target Payment per CRR OwnerTotal CRR Payments for hour ( )
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Module Summary
$ Describe the Day-Ahead Market and its related settlements.
$ Identify the actions that impact Day-Ahead Market Settlements.
$ Calculate various charges and payments associated with buying and selling products in the Day-Ahead Market
Day 1
Course Introduction
Congestion Revenue
Day-Ahead Market
Rights