Interval ‘Meter’ Data in MISO Market

Settlements Presented to: 2005 AEIC Load Research

Annual Meeting

By: Michael J. Amiss

Sr. Market Settlements Analyst

Interval ‘Meter’ Data in MISO

Market Settlements• Midwest ISO

• MISO Competitive Energy Markets

• ‘Meter’ Data

• Market Settlement Activities

Acronyms Ahead!

• AO – Asset Owner• API – Application Programmatic Interface• BA – Balancing Authority• BPM – Business Practices Manual• CA – Control Area• CPNode – Commercial Pricing Node• DA – Day-Ahead• DART – Day-Ahead Real-Time• DRR – Demand Response Resource• EMT – Energy Market Tariff• EPNode – Elemental Pricing Node• FTR – Financial Transmission Right• GFA – Grandfather Agreement• ICCP – Inter Control Center Protocol• IMM – Independent Market Monitor• ISO – Independent System Operator• JOU – Jointly Owned Unit

• LDC- Local Distribution Company• LMP – Locational Marginal Price• LSA – Local Security Administrator• MCC – Marginal Congestion Component• MDMA – Meter Data Management Agent• MEC – Marginal Energy Component• MLC – Marginal Loss Component• MMI – Midwest Market Initiative• MP – Market Participant• NAI – Net Actual Interchange• NSI – Net Scheduled Interchange• PSS – Physical Scheduling System• RT – Real-Time• RTO – Regional Transmission Organization• SAS(70) – Statement on Auditing Standards #70• SCED – Security Constrained Economic Dispatch• SE – State Estimator• TO – Transmission Owner• UFE – Unaccounted for Energy (residual load)• XML – Extensible Markup Language

ISO/RTO Map

The Midwest ISO is an independent, non-profit entity that monitors the transmission grid of high voltage electricity across much of the Midwest.

Who We Are

Operational Since December 15, 2001

23 Transmission Owners

36 Control Areas

119,000 MW of peak load

131,000 MW generating capacity

97,000 miles of transmission lines

947,000 square miles

15.1 million customers

1,504 generating units in the reliability footprint

Carmel and St. Paul Control Centers

Control Areas within the MISO Reliability Monitoring Area

Alliant Energy – East MidAmerican Energy Company

Alliant Energy – West Michigan Electric Coordinated System

Ameren Transmission Madison Gas and Electric Company

Aquila Networks – Missouri Public Service Manitoba Hydro, Transmission Services

Aquila Networks – West Plains Kansas Minnesota Power, Inc.

Central Illinois Light Co Muscatine Power and Water

Cinergy Corporation Northern Indiana Public Service Company

Columbia Water & Light Nebraska Public Power District

City Water Light & Power Northern States Power Company

Duke Energy – Vermillion Omaha Public Power District

Dairyland Power Cooperative Otter Tail Power Company

First Energy Corp Southern Indiana Gas & Electric Co

Great River Energy Southern Illinois Power Cooperative

Hoosier Energy Southern Minnesota Municipal Power Agency

Illinois Power Co Upper Peninsula Power Co

Indianapolis Power & Light Western Area Power Administration UGPR

Lincoln Electric System Wisconsin Energy Corporation

LG&E Energy Transmission Services Wisconsin Public Service Corporation

Carmel Control Center

The Role of RTOs

Monitor flow of power over the grid

Schedule transmission service

Perform transmission security analysis for the Reliability Area footprint

Manage power congestion through LMPs

Approve transmission & coordinate generation maintenance outages

Perform long term planning & analysis for region

Operate Real-Time & Day-Ahead Markets

Midwest Market Initiative

Midwest Market Launch

April 1, 2005

00:00:01 EST

MISO Actual Daily Average LoadApril 1 - June 30, 2005

0

20000

40000

60000

80000

100000

120000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Hour Ending

MW

Weekday

Weekend

Peakday

Why a Midwest administered Market?

Create a framework for robust, transparent and competitive electric markets. Markets work better when there are many buyers and sellers Competition yields lower prices Sellers will build if there’s an opportunity to earn a return

commensurate with the risks. Competitive markets are efficient!

Maximizing consumer welfare ‘Correct’ allocation of scarce resources Production at lowest cost

Enhance system reliability

Day-Ahead & Real-Time Markets• Day Ahead (DA) Market

– Forward Market that provides risk management to Real Time Market

– Opportunity to schedule transactions– Opportunity to set up Generation Offers – Demand

Bids

• Real Time (RT) Market– Continuous process of balancing supply and demand

at the least cost using security constrained economic dispatch (SCED) to manage congestion and produce LMPs.

– Balancing market from DA– Operations that are going on right now– Schedules that are flowing right now

Market Activities

Key Market Participants

GenerationOwner

TransmissionOwner

Load ServingEntity

Marketer

May or may not have assets

Generation Supplier bids (sets price they are willing to take for) generation into the market

Load Serving entity bids (sets price they are willing to pay to supply) load into the market

Supply

Demand

Market

MISO assesses the appropriateness of the bids and offers and contacts as needed

Market Participants

Supply

Offers

Demand

Bids

Commercial Model

Asset Owner

CPNode

EPNode

ENode

MISO

MP

The Commercial Model is a Financial representation of the Physical Network Model used to facilitate operations and settlement

Market Participant • Generator Owner• Load Resource Owner• Marketer

Market Participant • Generator Owner• Load Resource Owner• Marketer

• Can be Generation or Load Resource

• Can be Generation or Load Resource

Commercial Pricing Node• The published LMP represents the price at the CPNode

Commercial Pricing Node• The published LMP represents the price at the CPNode

Elemental Pricing Node• Lowest Hierarchy in the Commercial Model

Elemental Pricing Node• Lowest Hierarchy in the Commercial Model

Elemental Node• Component of the Network Model not Commercial Model • Physical point of injection or withdrawal to the system

Elemental Node• Component of the Network Model not Commercial Model • Physical point of injection or withdrawal to the system

Commercial Model Entity Relationship

•One EP Node to One CPNode

Asset Owner

EPNode

CPNode

EPNode EPNode

CPNode

EPNode

CPNode

Asset Owner

MP MP

•Many EP Nodes to One CPNode

•One EP Node to Many CPNodes

CPNode

Market Activities

Meter Data Management Agents (MDMA’s)

All Market Participants that own assets within MISO report, through their designated MDMA, hourly real- time meter injection and withdrawal volumes for each of their asset Commercial Nodes (e.g. ‘Meter Data’)

‘Meter Data’ may be:•Actual Meter Data •Estimated Meter Data (Day-Ahead Forecasts or Schedules, SCADA aggregated data, or profiled)•Initially Estimated Meter Data that has been submitted to MISO that has been subsequently updated using Actual Meter Data when available.

Market Participant – Meter Data Management Agent (MDMA)

Relationship

Market Activities

Market ActivitiesMP – MDMA Relationship

Meter Data Management Agents(MDMA’s) in June ’05 Commercial Model:

 # MDMA CC DRR GENRES LOAD Total # MDMA CC DRR GENRES LOAD Total1 AETS 4 31 IP 32 2 342 ALTM 2 92 4 98 32 IPLM 23 1 243 AMPO 1 1 33 LGEE 46 3 494 AMSE 4 112 36 152 34 MAEM 1 2 35 APGT 1 1 35 MDUM 6 3 96 APM 3 3 36 MGEP 1 10 1 127 CALP 2 3 5 37 MPC 2 2 48 CCG 1 1 12 14 38 MPM 26 7 339 CECD 8 8 39 MPPA 2 2

10 CETR 1 74 9 84 40 MPUG 7 1 811 CIN 3 87 12 102 41 MRES 9 912 CMS 1 6 2 9 42 MSCP 1 2 313 CMWL 1 3 4 43 NIP 1 19 4 2414 CPMT 3 3 44 NMKT 1 115 CPP 1 1 45 NMMI 1 116 CWLP 8 2 10 46 NSP 1 109 25 13517 DECO 2 5 7 47 OTPW 15 4 1918 DEMO 23 74 8 105 48 QEHI 5 519 DPC 2 2 49 RES 19 1920 DTE 3 3 50 SIGW 11 2 1321 DTET 1 1 51 SIPC 4 3 722 EIPM 2 2 52 SMPM 6 3 923 EKPM 1 1 53 UGPM 2 224 FE 4 4 54 UPLS 4 425 FESR 59 10 69 55 WEPM 1 72 3 7626 GRE 19 7 26 56 WPPI 1 8 4 1327 HEPM 14 7 21 57 WPSC 3 328 HOLL 1 1 58 WPSE 1 129 HUC 1 8 1 10 59 WPSM 28 3 3130 IMEA 3 3 Grand Total 24 23 1024 236 1307

The MDMA is responsible for submitting‘Settlement Quality Meter Data’ to MISO

• Accurate and complete measurement or estimation of actual hourly MWh injection and withdrawals volumes for each designated Market Participant’s asset Commercial Nodes.

• Aggregated (from Elemental Nodes) to the Asset Resource level (CP Node) consistent with the MISO Commercial Model including sub-transmission distribution losses and station auxiliary load where applicable.

• Where Validation, Estimation, and Editing (VEE) has been performed by the MDMA to ensure accuracy and completeness prior to submittal to MISO.

• Passes Market Settlement’s automatic validation controls – Initial (Portal) and Internal (preliminary data acquisition) validation process controls.

• Meets the above listed requirements with timely electronic submittal to Market Settlements in advance of S7, S14, S55 and S105 allowing for settlement of the market.

MISO Meter Data Process

OOOOOO

MWh

MDMAMarket SettlementsInterval Database

Meter

MV-90 MeterInterrogation /

TranslationSystem

MISO Portal / API

Market ParticipantStatements / Invoices

Settlement SystemVEEValidation &

AnalyticalProcessInterval Data

Market ActivitiesMDMA

Market Settlements

Meter Data File Format Standards• XML format only• MWh is the standard unit of measure• Truncated past 3 decimal (kWh) places• 24 intervals for each consecutive operating day• Eastern Standard Time (EST)• Submitted values represent ‘net’ injection or withdrawal

– Negative (-) values represent injection– Positive (+) values represent withdrawal

• Meter Data may represent:– Actual Meter Data– Estimated Meter Data– Profiled Meter Data

• Should be submitted by noon before scheduled settlement execution

Market ActivitiesMDMA Meter Data Submission

Meter Data FilesProcess Flow

Metering Agent (MP orMDMA)

XML MeterData

TRANSFERBUS

MISO Portal

Portal Settlements AssetOwner Folders

Market Participant Market Settlements Application

Market SettlementsApplication Folders

Passes PortalValidations

Yes

No

Pending

In Progress

Complete

Rejected

Meter Repository

Meter UploadFailure

Notif ication

Meter Archive

Meter Rejections

PassesSettlementsValidations

Yes

No

Market SettlementsDatabase

Meter Data

ErrorMessage

ReviewProcess

Contact MDMA -Meter Data valid?

Yes

No -Resubmit

Meter File Initial ValidationInternal Validation

"within cut'External Validation

"between cuts'

MP / MDMA PortalSettlement

System Analyst System

Valid XML Schema Trade Date > Current

Date? MDMA Relation Valid Asset Registration

Valid Valid MDMA-Asset

Relationship Operating Day > 105?

(warning only)

Interval Count = 24 SPI Tag = 3,600 Unit of Measure = 44 Invalid Interval (Channel

0 with status code of 9) MW Limits (high-low

tolerance limits) Test Asset Sign (+, -)

Consistency Test Interval Count =

Stop+1-Start/SPI

Graphic Visualization Cut Period Match-Up Time Series Trend Analysis Statistical Analysis Model Validation

Automatic Controls to ensureSettlement Quality Meter Data

‘Meter Data’ Validation Measures

Market ActivitiesMetering/Settlement Relationship

Market Settlements

Market Settlement

Settlement System Interfaces

Market Activities

Market Activities Charge Types

Settlement Charge Type Categories

Day-Ahead Charge Types

Real-Time Charge Types

Characteristic of Real-Time Charge Types: Results from real time market activities Appear on real time settlement statement Calculated on a hourly and daily basis by trade date

FTR Charge Types

Market ActivitiesSettlement Statements

Real-Time SettlementAsset Energy Amount

Settlements

Settlement Example

Real-Time Market Settlement Activitywith Financial Bilateral Transactions

Real-Time Asset Energy Amount

MISO ‘Meter Data’ Analyst vs.

Load Research Analyst- Comparison -

Similarities:• Time-Series Data• Systems Intensive• Energy Data Analytics• Applications • Not a ‘High Profile’

Function

Differences:• Data Not Sample Based• ‘Asset’ or Population

Data vs. Sample Point• Collection Methodology• Data Highly Aggregated• MWh vs. kWh• 60 vs. 15 Minute basis

For more information on the settlement of the MISO Day-Ahead, Real-Time, and FTR Competitive Markets refer to

the Business Practices Manual for Market Settlements located at:

www.midwestmarket.org/documents/ Market Procedures Documents and Technical Manuals /

Business Practices Manuals / Manual 005 BPM for Market Settlements