20150812AVU to Staff 43.docx

AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATIONJURISDICTION:IDAHODATE PREPARED:08/04/2015CASE NO.:AVU-E-15-05/AVU-G-15-01WITNESS:James KensokREQUESTER:IPUCRESPONDER:Rob JacobsTYPE:Production RequestDEPARTMENT:Information SystemsREQUEST NO.:Staff - 043TELEPHONE:[phone]REQUEST:
Please describe how the Company protects its generators from cyber-attacks or tampering, including out-of-phase conditions. Does the Company utilize specific hardware to address generator vulnerabilities (e.g., Cooper Power Systems’ iGR-933 Rotating Equipment Isolation Device, or Schweitzer Engineering Laboratories 751A feeder protection relay? Please describe in detail the hardware the Company uses for this purpose (i.e., model number, serial number, year, cost)? Did the Company obtain the hardware through a proposal process or through another process? Please explain how the Company evaluated the benefits and costs among the hardware options available at the time of purchase.RESPONSE:
Please see Avista's response 043C, which contains TRADE SECRET, PROPRIETARY or CONFIDENTIAL information and exempt from public view and is separately filed under IDAPA 31.01.01, Rule 067 and 233, and Section 9-340D, Idaho Code, and pursuant to the Protective Agreement between Avista and IPUC Staff dated June 4, 2015.