Post Dispatch Settlements

Narrative

As the electricity industry is deregulated, and as FERC defines more clearly what the market operation tariffs will encompass, three possible Regional Transmission Organizations (RTOs) in the Western Interconnection are developing seamless interfaces for Market Participants to submit energy schedules and ancillary service bids across these 3 RTOs. The 3 RTOs are California ISO (existing ISO handling the electricity market in California), RTO West (potential RTO of many northwestern utilities), and WestConnect (potential RTO of many southwestern utilities). These 3 RTOs are developing the requirements for the Western RTO functions. The descriptions of the functions below may or may not represent the final market rules and market operations, because these have not been finalized yet.

The following is a list of Western RTO functions related to Post Dispatch Market Operations.

Only the listed functions with asterisks are represented in the diagrams and/or step-by-step descriptions in section 2.

1. Post-Dispatch

a. Metering Data Collection *

· Register meters

· Process meter revenue data

b. Transmission and Distribution Schedule Checkout *

c. Financial Settlements *

· LMP Calculation

· Losses calculation

· Reconcile ISO market

· Reconcile real-time market

· Resolve disputes

d. Accounting and Billing *

· Create budget and financial forecast

· Manage accounts payable

· Manage accounts receivable

· Purchasing

e. Market Monitoring and Auditing *

· Develop monitoring criteria

· Perform market assessment

· Investigate market abuse

Metering Data Collection (MDC)

Description

Revenue metering data for each interval must be collected from all sites in order to provide the actual values for use during Settlements.

Diagram

Steps for Metering Data Collection

#	Event	Name of Process/Activity	Description of Process/Activity	Information Producer	Information Receiver	Name of Info Exchanged	IntelliGrid Architecture Environments
1a	Every metering cycle	Provide interval meter readings	Provide interval meter readings	Interval Meters	Eligible Customer Metered Entity	Meter readings
1b		Provide interval meter readings	Provide interval meter readings	Interval Meters	Metered Entities	Meter readings
2a		Provide metering data	Provide metering data	Metered Entities	Settlement Data Mgmt Agent	Meter readings
2b		Provide monthly meter readings	Provide monthly meter readings	Standard Customers Meters	Settlement Data Mgmt Agent	Meter readings
2c		Provide interval metered data	Provide interval metered data	Eligible Customer Metered Entity	Settlement Data Mgmt Agent	Meter readings
2d		Apply load profiles to non-interval meter readings	Apply load profiles to non-interval meter readings	Load Profiles	Settlement Data Mgmt Agent	Load data
3		Provide metering data	Provide metering data	Metered Entities	Transmission Owner	Meter readings
4a		Provide validated metering data in a standard meter format	Provide validated metering data in a standard meter format	Transmission Owner	RTO Meter Data Management System	Meter readings
4b		Provide validated and aggregated metering data in a standard meter format	Provide validated and aggregated metering data in a standard meter format	Settlement Data Mgmt Agent	RTO Meter Data Management System	Meter readings

Transmission and Ancillary Services Schedule Checkout (TASC)

Description

Actual versus Submitted Schedules must be verified by both the Scheduling Coordinators and the RTO/ISOs.

Diagram

Steps for Transmission and Ancillary Services Schedule Checkout

#	Event	Name of Process/Activity	Description of Process/Activity	Information Producer	Information Receiver	Name of Info Exchanged	IntelliGrid Architecture Environments
(1a)	Cycle for checking out actual vs. planned energy schedules	Provide actual schedule	Provide actual schedule	Operating Plan	Settlement System	Actual energy schedule
(1b)		Provide actual schedules from other RTOs	Provide actual schedules from other RTOs	Other 2 RTOs	Settlement System	Actual energy schedule
(2)		On 1st day after Trading Day, initiate preliminary schedule checkout	On 1st day after Trading Day, initiate preliminary schedule checkout	Settlement Administrator	Settlement System	Actual energy schedule vs. planned energy schedules
(3)		Provide preliminary schedule checkout	Provide preliminary schedule checkout	Settlement System	Scheduling Coordinators	Actual energy schedule vs. planned energy schedules
(4)		By 4th day after Trading Day, file schedule disputes	By 4th day after Trading Day, file schedule disputes	Scheduling Coordinators	Settlement System	Disputed energy schedules
(5)		Review and resolve disputes	Review and resolve disputes	Settlement System	Settlement Administrator	Disputes
(6)		By 5th day after Trading Day, initiate final schedule checkout	By 5th day after Trading Day, initiate final schedule checkout	Settlement Administrator	Settlement System	Final resolutions on energy schedule
(7a)		Report validated schedules to NERC	Report validated schedules to NERC	Settlement System	NERC	Final validated energy schedules
(7b)		Report validated schedules to other RTOs	Report validated schedules to other RTOs	Settlement System	Other RTOs	Final validated energy schedules

Market Operations Financial Settlements (MOFS)

Financial transactions must be finalized based on the market rules and the actual vs submitted schedules.

Diagram

Steps for Market Operations Financial Settlements

#	Event	Name of Process/Activity	Description of Process/Activity	Information Producer	Information Receiver	Name of Info Exchanged	IntelliGrid Architecture Environments
(1a)	Cycle for handling market operations settlements	Provide metering data	Provide metering data	RTO Meter Data Management System	Settlement System	Metering data
(1b)		Provide relevant metering data	Provide relevant metering data	RTO Meter Data Management System	Transmission Owner	Metering data
(2)		On day 46 after Trading Day, initiate preliminary settlement	On day 46 after Trading Day, initiate preliminary settlement	Settlement Administrator	Settlement System	Preliminary settlement information
(3)		Provide preliminary settlement	Provide preliminary settlement	Settlement System	Scheduling Coordinators	Preliminary settlement information
(4)		By day 52, file settlement disputes	By day 52, file settlement disputes	Scheduling Coordinators	Settlement System	Any disputed settlements
(5)		Review and resolve disputes	Review and resolve disputes	Settlement System	Settlement Administrator	Disputed information
(6)		By day 58, issue final settlement	By day 58, issue final settlement	Settlement Administrator	Settlement System	Final settlement information
(7)		Provide final settlement	Provide final settlement	Settlement System	Scheduling Coordinators	Final settlement information

Market Operations Accounting and Billing (MOAB)

Description

Accounting and billing must be finalized for each settlement period, according to the market rules.

Diagram

Steps for Market Operations Accounting and Billing

#	Event	Name of Process/Activity	Description of Process/Activity	Information Producer	Information Receiver	Name of Info Exchanged	IntelliGrid Architecture Environments
(1a)	Cycle for Accounting and Billing	Provide settlement information	Provide settlement information	Settlement System	Billing System	Settlement data
(1b)		Provide transmission metering data	Provide transmission metering data	RTO Meter Data Management System	Billing System	Metering data
(2)		Issue invoice	By day 91, issue invoice	Settlement Administrator	Billing System	Invoice
(3)		Pay invoices	By day 96, pay invoices	Scheduling Coordinators	Billing System	Payment
(4)		Pay Transmission Owners	By day 97, pay Transmission Owners based on metering data	Billing System	Transmission Owner	Payment

Market Monitoring and Auditing (MMA)

Description

All schedules, actions, and actual energy flows must be available to market monitors. The exact set of auditable data must be set by the market rules.

Diagram

Steps for Market Monitoring and Auditing

#	Event	Name of Process/Activity	Description of Process/Activity	Information Producer	Information Receiver	Name of Info Exchanged	IntelliGrid Architecture Environments
1a	Periodically or Spot Check	Review archival information	Review archival information	Auditor	Archives	Market operations information
1b		Review logs	Review logs	Auditor	Logs	Market operations information