20220204PAC to Sierra Club OR LC-77 Sierra Club 8.4.pdf

LC 77 / PacifiCorp February 3, 2022 Sierra Club Data Request 8.4

Despite PacifiCorp's diligent efforts, certain information protected from disclosure by the attorney-client privilege or other applicable privileges or law may have been included in its responses to these data requests. PacifiCorp did not intend to waive any applicable privileges or rights by the inadvertent disclosure of protected information, and PacifiCorp reserves its right to request the return or destruction of any privileged or protected materials that may have been inadvertently disclosed. Please inform PacifiCorp immediately if you become aware of any inadvertently disclosed information.
Sierra Club Data Request 8.4 For each instance identified in response to SC 8-3 above, please identify the magnitude and hourly profile of any reliability shortfalls identified at that location. Please provide
supporting data.
Response to Sierra Club Data Request 8.4
Hourly shortfall data is included in the confidential work papers provided with the
Company’s responses to Sierra Club Data Request 6.2 and Sierra Club Data Request 6.3. More specifically, hourly reliability shortfalls by location are provided on tab “Unserved”. Please refer to the example provided below, based on the information contained in the Company’s response to Sierra Club Data Request 8.3:
Shortfalls in Southern Oregon in 2030 (the year transmission limits were reached) are
provided with the Company’s response to Sierra Club Data Request 6.2, specifically
Confidential Attachment SC 6.2, folder “Step 3 CONF\5230 P-02 MMGR Capacity Requirements CONF\Reports CONF“, file “Shortfalls - 2030_ST_output_5691.xlsx”. On tab “Unserved”, the specific shortfalls for Southern Oregon can be identified by filtering column E “Child Name” on “Southern OR” and “Southern OR – CA”, and then filtering column L “Unserved Energy (MW)” to exclude “0”. Note: in this specific instance / example, there is no unserved energy in Southern Oregon in this study in this year.