7/23/15 HANG #2, BA Transition.
On July 24, 2015 at 00:00:00 hours (MST) the HANG 2 line will officially
transition to AZPS Balancing Authority. The new paths are posted and available
7/20/15 OASIS Advisory posting.
On July 24, 2015 @ 00:00:00 MST the HANG 2 line will transition from the
CAISO Balancing Area to the AZPS Balancing Area. IID will be the TP for
its portion of the HANG #2 line, and AZPS will be the SE for PALOVEDE500-NRTHGILA500
and NRTHGILA500-PVWEST segments now associated with HANG 2 after the transition.
May 27th, 2015
Hassayampa-North Gila 500kV Line #2
At 16:00 MST on May 26, 2015 the Hassayampa-North Gila 500KV Line 2 (HANG
2) will be declared commercial. The line will be temporarily assigned to
the CAISO Balancing Area until July 23, 2015. At that time the line will
transition to the APS Balancing Area.
IID will post a TTC change for its portion of the PALOVERDE500-PVWEST
line segment effective May 28, 2015. However Point-To-Point Transmission
Service will not be available for purchase on the HANG 2 Line until July
Please contact Adrian Lopez (760) 339-0830 with any questions.
May 18th, 2015
Hassayampa-North Gila 500kV Line #2
On May 26, 2015 APS will place in service the Hassayampa-North Gila 500KV
Line #2 with a Total Transfer Capability (TTC) of 500MW. The new TTC will
be split amongst the participants, per their participant percentages; APS
with 80% and IID with 20%. OASIS will be updated by May 26th.
NEW IID OPEN ACCESS SAME TIME INFORMATION SYSTEM (OASIS)
Imperial Irrigation District is pleased to announce that, in an effort
to obtain a more efficient and simplified webTrans and webOASIS system,
it is in the final stages of modifying its current OASIS. As part of the
reconfiguration, IID has created individual sources for each Independent
Power Producer in its Balancing Authority Area, thereby reducing the number
of Point of Receipt/Point of Delivery combinations, and also reducing the
number of transmission paths. The new system will allow IID to monitor
and maintain its webRegistry (NAESB) in a more efficient manner.
Starting July 7, 2014, each Transmission Service Request (TSR) that is
in “STUDY” mode will be individually transitioned from the old system to
the new. Please be assured that all customers will retain their current
queue position(s). Each customer will be required to electronically submit
a new Transmission Service Reservation. The new TSR will reference the
old OASIS “AREF” number so there is a clear history in the system. This
will be achieved by inserting a short statement into the “Customer Comment”
section specifying the new reservation is being submitted for the purpose
of replacing the old OASIS reservation. There will be an interim period
of parallel operation with both the old and new TSRs active in the production
system. This interim period will allow for quality assurance during transition.
PLEASE NOTEthat beginning immediately, for those intertie points with
Available Transfer Capability (ATC) where service can commence immediately
with no additional analysis, IID will begin tendering Transmission Service
Agreements in accordance with the provisions of Section 17 of the Open
Access Transmission Tariff.
IID will be sending such Agreements for execution in queue order. Customers
will have fifteen (15) calendar days to sign and return the agreement(s)
and begin paying for reserved capacity or their transmission service request
will be deemed terminated and withdrawn.IID will proceed to refund
any pending reserved capacity deposit for terminated/withdrawn requests.
Following termination or withdrawal, IID will make remaining capacity
available to the next eligible customer in the queue on a first-come, first-served
basis. Customers may voluntarily withdraw transmission service requests
by contacting IID’s OASIS Administrator at
As the new system is being configured in OATI production system, new e-tag
templates that include newly created Sources, Paths, and TSR numbers will
be distributed to pertaining PSEs. Once the new system has been set-up
in its entirety, an announcement will be posted on IID’s OASIS page stating
the revamp has been completed. IID will also notify customers via email.
Due to the implementation of the NERC ATC-related MOD Standards, TTC (and
ATC) values posted after April 1, 2011 are under review and subject to
IID will work closely with customers to ensure a smooth transition to
the new OASIS. Questions regarding the process should be referred to Adrian
Lopez, IID’s Open Access Same Time Information System Administrator, via