20171101Avista to Sierra Club 3-6 Suppl 2.pdf

AVISTA CORPORATION
RESPONSE TO REQUEST rOR TNFORMATION
JURISDICTION: IDAHO DATE PREPARED: 10/3112017
CASE NO: AVU-E-17-01/AVU-G-17-01 WITNESS: Scott Kinney
REQUESTER: Sierra Club RESPONDER: Thomas DempseyTYPE: Production Request DEPARTMENT: Thermal$peraftgns
REQUEST NO.: Sierra Club - 3-6 Supplemental 2 TELEPHONE: (509) 49F4960=
=HH Ht'rF. f C)REQUEST EE : E
Reference Avista's response to SC 1-3, Confidential Attachment E, page 33 of 3R eE i g'o' crr5 f rJ
a. What is the construction and operation status of [confidential] ("Project ID tryZtf B;Z ff
it has not been completed, when (month and year) does Avista anticipate it ffil be
completed?
b. Please provide the dollar amount, if any, from ProjectID 10022111 that Avista included in
its rate base request in this proceeding AVU-E-17-01?
c. On what date does Avista anticipate Project ID 100221I I was or will be "used and
useful"?
d. The project description states: [confidential] What is the status of the [confidential]
referenced in this project authorization?
e. On what date did the [confidential] referenced by this document come into effect? If that
date has not yet occurred, what date does Avista anticipate they will come into effect?
f, Please provide all memos, reports, emails, or other documents prepared by, reviewed by, or
made available to Avista that support the conclusion that [conf,rdential].
g. Please provide all memos, reports, emails, or other documents prepared by, reviewed by, or
made available to Avista between 2015 and today that discuss any changes to the
referenced [confi dential] and/or the referenced [confi dential].
h. Please provide a narrative description of what Avista understands its regulatory obligations
are today that necessitate the installation of Project ID 10022111, including but not limited
to compliance deadlines and applicable emissions limits.
RESPONSE:
a. Project ID 10022111 has been completed and is in service.
b. This project was completed in June of 2016, included and approved in Avista' prior 2016
GRC (Case No. AVU-E-16-03), and is therefore currently included in base rates as of
January 1,2017. Therefore this project is not included in the Company's current base
request in this proceeding. The total cost from Talen for this project is $1,993,516. This
total does not include any overheads incurred by Avista.
c. 613012016
Page I of3
d. The RegionalHaze Program set a national goal of eliminating man-made visibility
degradation in Class I areas by the year 2064. States are expected to take actions to make
"reasonable progress" to maintain the proper glide-path of pollutant reductions to achieve
the2064 goal. On September 18,2012, the EPA finalized the RegionalHaze federal
implementation plan (FIP) for Montana which included both emission limitations and
pollution controls for Colstrip Units I & 2.
Anticipating that Colstrip Units 3 & 4 could be ordered to install Selective Catalytic
Reduction (SCR) during the 2017 review period, the Colstrip Owners' proactively
installed the Smart Burn technology to reduce the formation of Nitrous Oxides (NOx) in
combustion zone for two major benefits:
Make proactive and verifiable NOx reductions and
Optimize the size, scope and ammonia use of any future SCR installation.
Colstrip Units 3 & 4 are currently being evaluated as part of the State of Montana Regional
Haze 5-Year Progress Report (please see:
https://deq.mt.gov/Portals/112lPublic/Air/ProeressReport_DRAFT_7-2017.pd0 for more
information.
e. See answer to "d"
f. The following attachments are provided:
o SC_PR_3-6 Attachment A - PPL - PPL response letter to EPA dated Jan. 31,2011
to request for information (Nov. 5, 2010) for additional Reasonable Progress
information for Colstrip Units 3 & 4.
o SC_PR_3-6 Attachment B -Executive - NOx Control supplement to Attachment 2
of PPL.pdf . This attachment includes additional information in regards to NOx
provided by PPL.
o SC_PR_3-6 Attachment C -Earth J -Earth Justice, Montana Environmental
Information Center, Sierra Club and National Parks Conservation Association
comment letter to EPA dated August 22,2011o SC_PR_3-6 Attachment D -Regional Haze - Colstrip Owners presentation to EPA
dated Nov. I ,2011o SC*PR_3-6 Attachment E -Federal Reg - EPA issued the Federal Implementation
Plan (FIP) for Montana dated Sept. 18,2012
o SC_PR_3-6 Attachment E -EPA - EPA issued general principles for next review
period for reasonable progress reports
The Company is in the process of searching for additional material and will supplement
this response with relevant information if and when available.g. See "f'h. See answer to "d"
SUPPLEMENTAL RESPONSE :
Please see Avista's response 3-6C, which contains TRADE SECRET, PROPRIETARY or
CONFIDENTIAL information and exempt from public view and is separately filed under
IDAPA 31.01.01, Rule 067 and233,and Section 9-340D,Idaho Code.
Please see SC_PR_3-6C Supplemental Conf,rdential Attachment A for additional material to part f.
Page 2 of3
SUPPLEMENTAL 2 RESPONSE:
Please see Avista's response 3-6C Supplemental 2, which contains TRADE SECRET,
PROPRIETARY or CONFIDENTIAL information and exempt from public view and is
separately filed under IDAPA 31.01.01, Rule 067 and233,and Section 9-340D,Idaho Code.
The spreadsheet attachment to the email (Gordon Criswell to Tom Dempsey and others) was
inadvertently left out of the previous response (ICNU_PR_3-6C Supplemental). Please see
SC_PR_3-6C Supplemental2 Confidential Attachment A for additional material to part f.
Page 3 of3