Welcome to the AZPS OASIS Site, hosted by OATI

The TS-9 (Morgan)to Pinnacle Peak 500KV project, as referenced in the 2009-2018 APS Ten-Year Plan ("APS Plan"), may not be completed by the June 1, 2010 planned "in service" date due to construction delays. Information regarding this project is located on page 17 of the APS Plan, as filed with the Arizona Corporate Commission.

Within the Tariff folder, under Effective Rates, the formula rate schedule documentation spreadsheet is available.

Additionally, under Tariff, Effective Rates, the rates to be effective and apply to all services starting from June 1, 2009 until June 1, 2010, is available as the 06.01.09 Effective Formula Rates link.

Need Transmission with NO pancaked rates?*

WestConnect members are making it easier for you to move your energy!  
Go to OASIS, click on the WC Wizard, enter the POR and POD and find the 
Hourly Non-firm transmission service available at the Regional Rate.  
Select the service you wish to buy and off you go. 

Before you buy and use the Regional Transmission product, make sure you’ve 
done your homework . . .
•Have you executed the new, Non-Firm Annex A service agreement with all the 
WestConnect Pricing Experiment Regional TPs (AZPS, EPE, NEVP, PNM, 
PSCO, SWTC, TSGT, WACM, & WALC)?  Check with your regular contracts 
person at each TP to obtain the new service agreement.
•Have you established creditworthiness with each Regional TP?
•Have you obtained the service through the OASIS/WC Wizard button?
•Have you Pre-confirmed the reservation?
•Have you followed the proper E-Tagging procedures for all entities involved in 
the path?

A few things to remember along the way . . .
•Only Hourly, Non-Firm service is available with the Regional Rate
•Sorry, but no renewals, resales, or redirects are allowed.
•All Regional TPs in the path have to approve the reservation before going to a 
CONFIRMED state . . . so be patient. . .
•You can only request the regional service through the WC Wizard interface on 
OASIS.
•Confirmed TSR will have a $.09/MWh administrative fee added on your bill, in 
addition to the cost of the transmission.
•Service starts Soon.  View the WC Wizard between June 9th and June 11th to
acquaint yourself with the new OASIS tools.

* Losses and scheduling fees for each regional TP will still be charged.