Oasis Overview
OASIS Overview
• What is OASIS?
– Open Access Same
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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OASIS Overview
Priorities of Transmission Service
Beginning with
1-NS Non-firm
Secondary
7-F
6-NN
5-NM
4-NW
3-ND
2-NH
1-NS
7-F = Firm
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
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1-NS = Non-firm Secondary
Task 1: Submit OASIS TSR
Step 1: Navigate
https://marketoasis.midwestiso.org/oasis/Midwest ISO
http://oasis.midwestiso.org/oasis/miso
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Task 1: Submit OASIS TSR
Step 1: Navigate
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Task 1: Submit OASIS TSR
Step 2: Submit
‘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
FTR Information only
displayed if FIRM
Service Type
FIRM service can be
DAILY, WEEKLY,
MONTHLY or YEARLY
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Task 1: Submit OASIS TSR
Step 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 TSR
Step 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 TSR
Step 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 TSR
Step 4: Initial Result
Transmission
Service
Request
number
Status of
QUEUED
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Task 1: Submit OASIS TSR
Step 4: Result = Accepted
Withdraw or Confirm
reservation
Status of
ACCEPTED
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Tariff Administration Department
Two Desks in Control Room
Real-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)
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