20150612Avista to Staff 1-5.pdf

Avista Corp.
1411 East Mission P.O.Box3727
Spokane. Washington 99220-0500
Telephone [phone]
TollFree 800-727-9170
Corp.
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June 1L,2015 li I.-
Idaho Public Utilities Commission
472W. Washington St.
Boise,ID 83720-0074
Attn: Donald Howell
Deputy Attomey General
Re: Production Request of the Commission Staff in Case Nos. AVU-E-I5-06
Dear Mr. Howell,
Enclosed are an original and thee copies of Avista's responses to IPUC Staffs production
requests in the above referenced docket. Included in this mailing are Avista's responses to
production requests 01 - 05. The electronic versions of the responses were emailed on 06110115.
Also included is Avista's CONFIDENTIAL response to PR 01C. This response contains
TRADE SECRET, PROPRIETARY or CONFIDENTIAL information and is separately filed
under IDAPA 31.01.01, Rule 067 and233, and Section 9-340D,Idaho Code, and pursuant to the
Protective Agreement between Avista and IPUC Staff dated June 4, 2015. It is being provided
under a sealed separate envelope, marked CONFIDENTIAL.
If there are any questions regarding the enclosed information, please contact Paul Kimball at
[phone] or via e-mail at [e-mail]
Sincerely, ,//-/.Z=4/
Paul Kimball
Regulatory Analyst
Enclosures
CC: all parties
AVISTA CORPORATION
RESPONSE TO REQTIEST FOR INFORMATION
JUzuSDICTION: IDAHO DATE PREPARED: 0611112015
CASE NO.: AVU-E-15-06 WITNESS: William Johnson
REQUESTER: IPUC Staff RESPONDER: William JohnsonTYPE: Production Request DEPARTMENT: Power Supply
REQUEST NO.: Staff - 0l TELEPHONE: [phone]
REQUEST:
Please provide a summary showing Clearwater's approximate monthly generation and load for
each ofthe past 10 years.
RESPONSE:
Please see Avista's response 01C, 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, arrd Section 9-340D, Idaho Code and pursuant to the
Protective Agreement between Avista and IPUC Staff dated June 4,2015
Please see Sta[PR_01C Confrdential Attachment A. The "Monthly" summarizes all of the daily
generation and load values, which are also included in the attachment.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
DATE PREPARED: 0611112015JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-15-06
IPUC Staff
Production Request
Staff - 02
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
William Johnson
William Johnson
Power Supply
(sOe) 49s-4046
REQUEST:
Please describe the circumstances under which Avista expects Clearwater to generate Incremental
Energy. Please be as specific as possible and give examples if necessary.
RESPONSE:
Incremental Energy will be generated when two conditions are met. First, Avista would request
Clearwater to generate Incremental Energy. Second, Clearwater and Avista would agree to aprice
for the Incremental Energy. In order for those conditions to be met, wholesale market power
prices would have to be higher than the cost of Clearwater's additional generation so that Avista's
customers and Clearwater benefit from the deal. This may occur during periods of high customer
load due to very cold or very hot weather and/or a combination of high loads and significant plant
outages in the Northwest. For example, a sustained Northwest heat wave, in conjunction with the
loss of one or more Colstrip generating units, could lead to wholesale power prices that are above
the marginal cost of generation for Clearwater.
AYISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION: IDAHO DATE PREPARED: 0611112015
CASE NO: AVU-E-I5-06 WITNESS: William Johnson
REQUESTER: IPUC Staff RESPONDER: William JohnsonTYPE: Production Request DEPARTMENT: Power Supply
REQUEST NO.: Staff - 03 TELEPHONE: (509) 49s-4046
REQUEST:
Please clarify the difference between Excess Energy and Incremental Energy.
RESPONSE:
Excess Energy, as defined in the Electric Service Agreement, is the condition where Clearwater
generates more electric power than is required to meet its own obligations. Under the terms of the
Agreement, Avista would credit Clearwater for any excess kWhs generated during a billing period
in a manner consistent with Schedule 63 (net metering). See the Company's response to Staff-04
which states that for Clearwater, there has not been a single hour of Excess Energy between 2005
and present.
Incremental Energy, on the other hand, is energy generated at Avista's request at a mutually
agreed-upon price. This is energy that is above what Clearwater is generating at the time of
Avista's request, and such energy would be deemed to be Incremental Energy, even if such
generation does not exceed Clearwater's load.
AYISTA CORPORATION
RESPONSE TO REQTIEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-15-06
IPUC StAff
Production Request
Staff - 04
DATE PREPARED: 0611112015
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
William Johnson
William Johnson
Power Supply
(s09) 49s-4046
Energy generated by
at Clearwater for the
REQUEST:
Please provide a swnmary showing the amounts by month of Excess
Clearwater since the inception of the current Agreement in June 2013.
RESPONSE:
There has not been an hour of Excess Energy (generation exceeds load)
period 2005 through present.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
ruRISDICTION: IDAHO DATE PREPARED: 0611112015
CASE NO.: AVU-E-15-06 WITNESS: William Johnson
REQUESTER: IPUC Staff RESPONDER: William JohnsonTYPE: Production Request DEPARTMENT: Power Supply
REQUEST NO.: Staff - 05 TELEPHONE: [phone]
REQUEST:
Please provide a sunmary showing Clearwater's approximate monthly generation and load for
each ofthe past 10 years.
RESPONSE:
Please see the Company's response Sta[PR_OlC Confidential Attachment A.