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Base Case Coordination System

A base case is a computer model of projected or starting power system conditions for a specific point in time. In WECC, base cases include both steady state and dynamics data. Base cases contain very large amounts of data necessary to model power system behavior.

A request from WECC data committees lead to an RFP in August 2010 for a software solution for improved management of transmission base case data at a central location, and improved coordination of transmission study base cases through automating base-case review and assembly steps that are currently manual steps. The proposed improvements will both improve base-case accuracy and reduce manpower requirements. This software solution is referred to as the Base Case Coordination System (BCCS).

On December 30, 2011, WECC and Siemens PTI finalized the BCCS contract negotiations. The development of the BCCS will occur in stages throughout 2012, with the final product to be delivered in December 2012. WECC will coordinate training in the first quarter 2013.

The BCCS will be a web-accessible, centralized database that automates existing processes. It will also provide a central location for maintaining base case information. This will increase the accuracy and timeliness of base case development. The BCCS will also provide a mechanism for supporting other WECC functions.