Oasis Overview

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OASIS Overview

• What is OASIS?– Open Access SSame

Time Information System

– Electronic site for transmitting utility information to customers

• Allows Customers to submit Transmission Service Reservations (TSR)

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OASIS Overview

• Midwest Market Reservation Types– Point to Point (Imports, Exports, Throughs, Withins)

• Moves energy from specific point to another• Transmission service reservation required for both Midwest

ISO and non Midwest ISO transmission• Requested through OASIS system

– Network (Imports and Withins)• Moves energy from Generator (Generator can be outside of or

inside of footprint) to native load within Midwest Market footprint• Contact Tariff Admin to set up initial reservation • Spot Market transactions, imports only, no incremental charge.

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1-NS

2-NH3-ND

4-NW

5-NM

6-NN

6-NN = Non-firm Network

5-NM = Non-firm Monthly

4-NW = Non-firm Weekly

3-ND = Non-firm Daily

2-NH = Non-firm Hourly

1-NS = Non-firm Secondary

Beginning with 1-NS Non-firm Secondary

7-F

7-F = Firm

OASIS OverviewPriorities of Transmission Service

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Task 1: Submit OASIS TSRStep 1: Navigate

http://oasis.midwestiso.org/oasis/miso

https://marketoasis.midwestiso.org/oasis/Midwest ISO

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Task 1: Submit OASIS TSRStep 1: Navigate

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Task 1: Submit OASIS TSRStep 2: Submit

FTR Information only displayed if FIRM

Service Type

FIRM service can be DAILY, WEEKLY,

MONTHLY or YEARLY

‘Asset Owner’ field • This is passed to the PSS (through

OASIS) and used in settlements• Participants will only be able to select

Asset Owners that they are responsible for based on the company login

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Task 1: Submit OASIS TSRStep 2: Submit

POR/POD and Source/Sink will have

to match E-Tag exactly or the E-Tag will be

denied

SUBMIT buttons are located at the top and

bottom of the reservation page

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Task 1: Submit OASIS TSRStep 3: Evaluation

• Evaluation of Reservation Request– Tariff Administration evaluates Transmission

Service Requests using the following criteria:• Verify adequate capacity on the fifteen most

limiting constrained facilities on the flow path in the OASIS request

• If negative AFC exists on one of the fifteen most constrained flowgates then the request could receive a counter-offer or be denied

– Status is assigned to Transmission Reservation

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Task 1: Submit OASIS TSRStep 3: Evaluation

• States of a Service Request– Queued- Indicates initial status on receipt of a customer

purchase request or TSR– Study - Indicates some level of study is required to evaluate

a request– Accepted (by Midwest ISO) - Indicates the service request

has been approved /accepted– Confirmed (by PSE) - Indicates the request has been

confirmed and a transmission service request exists– Withdrawn - Indicates the customer has withdrawn the

request from further action during the evaluation process– Counter-Offer - Indicates partial acceptance of a request

due to limited AFC, FTR availability– Refused – indicates the Midwest ISO has refused the

request• Note : Only the most common states are listed here. Refer to the Open Access

Tariff Business Practices for the complete list.

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Task 1: Submit OASIS TSRStep 4: Initial Result

Transmission Service Request number

Status of QUEUED

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Task 1: Submit OASIS TSRStep 4: Result = Accepted

Withdraw or Confirm reservation

Status of ACCEPTED

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Tariff Administration Department

Two Desks in Control RoomReal-Time Desk (7x24 Staffing)

• Processes all requests for non-firm transmission service, primarily requests for hourly transmission service.

Day-Ahead Desk (Normal Business Hours)• Processes requests for short-term firm service -

Daily, Weekly, Monthly.

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Scenario Analyzer– Allows a customer to submit a request for analysis of

transmission capacity without actually submitting a transmission request

• Flow-based approach determines AFC on constrained facilities

– Results of Request • OK – capacity potentially available• Not OK -- feedback given as to hours/days request is not

OK. Include limiting facility and amount of AFC available on facility

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Other Info on Tariff Administration

– Tariff Administration Contacts• Non-Firm Service Desk – 317-249-5523• Firm Service Desk – 317-249-5524• E-Mail - tariffadministration@midwestiso.org

– OASIS URLs:• http://oasis.midwestiso.org/OASIS/MISO

– (Non-Secure)

• https://oasis.midwestiso.org/OASIS/MISO– (Secure – Requires Certificate)