20200714Attachment 19-1 ICIRP PURPA Method Process Documentation.docx

In order to reliably and efficiently manage ICIRP pricing requests for PURPA QFs, Idaho Power has implemented a SQL-based model that uses input data from several sources within Idaho Power’s information infrastructure. Because of the nature of this process and location of the data sources, the Company cannot export to Staff a complete replication of the model. The following describes the features/inputs of the SQL-based model.
ICIRP Model Interface
Inputs:
Aurora File – Aurora simulation performed with existing resources and contract and queued PURPA generation.
Queue – PURPA project that is requesting pricing.
Pricing Request – Revisions or corrections that can occur to the Queued project.
Capacity Cost – Excel file that calculates the Capacity Cost. See the Excel file included as Attachment 2 (“Capacity Cost Input” tab).
Incremental Costs – Excel file of resource characteristics (ie, resource nameplates, resource minimum capacities).
Peak Hour Capacity Factor – PURPA projects peak hour capacity factor, that is used in conjunction with the Capacity Cost to determine a Capacity payment. See Attachment 2 (“Input” tab)
Date – The date when the project receives its first capacity payment based on the Company’s load and resource balance analysis.
Capacity Payment Percentage – The amount of capacity payment that is applied to each year.
After all the input fields have been populated, the model runs to produce the ICIRP pricing for the specified project.